Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena最新文献

{"title":"Turbulent Dynamics and Heat Transfer in Transcritical Channel Flow","authors":"Kukjin Kim, C. Scalo, Jean-Pierre Hickey","doi":"10.1615/tsfp10.100","DOIUrl":"https://doi.org/10.1615/tsfp10.100","url":null,"abstract":"We present direct numerical simulations (DNS) of turbulent channel flow to study turbulent dynamics and heat transfer effects at a transcritical temperature and supercritical pressure regime. The fully compressible Navier–Stokes equations in conservative form are closed with the Peng–Robinson (PR) equation of state and the Chung’s model for the thermophysical and transport properties. To quantify the turbulent heat transfer effect, the bottom and top walls of the channel are maintained at different isothermal temperatures, Ttop/bot = Tpb±∆T/2, where Tpb is the pseudoboiling temperature of working fluid and ∆T = 20 K. The bulk pressure and velocity are 1.1pc and 36 m/s, respectively, where pc is the critical pressure. The statistical mean profiles shows significant thermophysical variation in the regime having large thermodynamic gradient near the walls compared to the ideal gas case and the average pseudoboiling location is observed at y/h = 0.92. The root mean square (RMS) profiles of fluctuating velocity are attenuated in the pseudogas region, whereas the thermodynamic fluctuations are greater in that region than the pseudoliquid region. One-dimensional energy spectra fall off steeply at high wavenumber showing the adequacy of the DNS resolution. Instantaneous visualizations of near-wall turbulent structures reveal that the dense fluid ejection from the bottom wall reaches to the channel center region resulting in the large fluctuation in the thermodynamic properties across the channel.","PeriodicalId":266791,"journal":{"name":"Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114161386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SIMULATION OF THE RESONANT INTERACTIONS BETWEEN A BOUNDARY LAYER AND AN ARRAY OF DEEP CAVITIES","authors":"Grigory Shelekhov, J. Bodart, L. Joly","doi":"10.1615/tsfp10.1040","DOIUrl":"https://doi.org/10.1615/tsfp10.1040","url":null,"abstract":"We have performed numerical simulations of the interaction between a laminar boundary layer flow and an array of deep slit-aperture cavities solving fully compressible Navier-Stockes equations with a finite-volume solver CharLESX . The cavities are included in the computational domain which allows to study the full interaction i.e. the excitation mechanism of the liner and its acoustic response. The parameter space is explored by varying the cavity depth D, thus shifting the cavity resonant modes fr,m = (2m− 1) c 4D , where m is a positive integer. Four cases, with varying cavity depth were studied. In all cases, the coupling of the grazing shear layer instabilities to the acoustic standing waves inside cavities (resonant interaction) leads to the generation of large Kelvin-Helmholtz (KH) rollers, scaling as λKH = Uc/ fr,1. In some cases, this coupling leads to the excitation of m > 1 resonant modes in the upstream cavities. However vortex merge occurring over the cavities switches the mode m = 1 further downstream. Overall, the results suggest that an array of deep cavities has a promising potential application for passive flow control.","PeriodicalId":266791,"journal":{"name":"Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124166747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"INFLUENCES OF LARGE-SCALE STRUCTURES ON SKIN FRICTION IN AN ADVERSE PRESSURE GRADIENT TURBULENT BOUNDARY LAYER","authors":"Min Yoon, Jinyul Hwang, H. Sung","doi":"10.1615/tsfp10.50","DOIUrl":"https://doi.org/10.1615/tsfp10.50","url":null,"abstract":"Direct numerical simulation (DNS) of a turbulent boundary layer (TBL) subjected to adverse pressure gradient (APG) at Reτ = 834 is performed to investigate large-scale influences on vortical motions. For comparison, DNS data of a zero pressure gradient (ZPG) TBL at Reτ = 837 is analyzed. The spanwise energy spectra of the streamwise velocity fluctuations show that the large-scale energy above 400 z    (λz/δ ≈ 0.5) is significantly enhanced in the APG TBL. Large-scale streamwise velocity fluctuations (uL) is extracted by employing a long-wavelengthpass filter with a cut-off wavelength of 400. z    Two velocityvorticity correlations ( z v   and ), y w   which represent the advective vorticity transport and vortex stretching, respectively, are conditionally averaged with respect to uL to explore the extension of large-scale influences on the vortical motions. The velocity-vorticity correlations are directly related to the skin friction coefficient (Cf). The total Cf in the APG TBL is reduced by 28% from that in the ZPG TBL. The skin friction induced by z v   and y w   contribute negatively and positively to the total Cf respectively. In the APG TBL, the negative contribution of z v   decreases 29.6%, while the positive contribution of y w   slightly increases about 7.0%. Under the intense negative and positive uL ( 2 L u    and 2), L u    the contribution of z v   in the APG TBL is enhanced 8.33 and 2.72 times compared to the ZPG TBL. The skin friction induced by y w   increases 1.8 times only under 2 L u    in the APG TBL. The enhanced largescale motions in the outer region strongly modulate the vortical motions. In particular, the low-speed structures augment the contribution of the advective vorticity transport and the contribution of the vortex stretching is enhanced under the influence of the high-speed structures in the APG TBL. INTRODUCTION One of important features in APG TBLs is an increase of large scales in the outer region: e.g., a strong secondary peak in the premultiplied energy spectra of the streamwise velocity fluctuations (Harun et al. 2013; Lee 2017). Large-scale structures (LSSs), scale with Ο (δ), where δ is the boundary layer thickness, play an important role in the production of turbulent kinetic energy and the transport of momentum. LSSs contain about half of the turbulent kinetic energy and Reynolds shear stress in turbulent flows (Guala et al. 2006; Balakumar & Adrian 2007). LSSs with strong energy in the outer region extend to the near-wall region as footprints (Hutchins & Marusic 2007a). Hutchins & Marusic (2007b) observed that amplitudes of three velocity fluctuations and the Reynolds shear stress are attenuated under negative largescale fluctuations at y+ = 15 in the instantaneous fluctuating signals. To measure a degree of amplitude modulation (AM) influences, Mathis et al. (2009) introduced AM coefficient, which is the correlation between the large-scale fluctuations and filt","PeriodicalId":266791,"journal":{"name":"Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123533143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"OPTICAL INVESTIGATION OF TURBULENCE MODULATION IN AN EXTERNALLY FORCED, HIGH REYNOLDS NUMBER BOUNDARY LAYER","authors":"Matthew R. Kemnetz, S. Gordeyev, P. Ranade, E. Jumper","doi":"10.1615/tsfp10.940","DOIUrl":"https://doi.org/10.1615/tsfp10.940","url":null,"abstract":"An optical investigation of an externally forced boundary layer is presented. Measurements were conducted in Notre Dame’s Compressible Shear Layer Facility. The forced shear layer created an organized spatially-temporally-varying external flow outside the boundary layer. Full phase-locked 2D optical wavefronts were taken and compared with the previously-collected phase-locked velocity data. Local increase in temporal variance of the wavefronts was found to be associated with a local increase in turbulence intensity due to turbulence amplification events inside the boundary layer. Discrepancies between the amplitudes of optical distortions, experimentally measured and predicted using the Strong Reynolds Analogy, indicated that the pressure fluctuations inside the turbulence amplified regions are not negligible and contribute to the optical distortions. An updated model with included pressure-related terms is derived and it was shown to correctly predict experimental optical results.","PeriodicalId":266791,"journal":{"name":"Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122663300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Blunt Trailing Edge Profiled Body Wake Control Using Synthetic Jets","authors":"Ross Cruikshank, P. Lavoie","doi":"10.1615/tsfp10.810","DOIUrl":"https://doi.org/10.1615/tsfp10.810","url":null,"abstract":"INTRODUCTION The flow over bluff bodies is an important area of research in fluid dynamics due to its many scientific and engineering applications. Bluff body wakes involve the interaction of separated shear layers, forming a system of antisymmetric vortices (i.e., a vortex street). The distance downstream of a body that a vortex street forms is determined by the energy of the separated shear layers and the entrainment demands of the von Karman vortices. A strong vortex street leads to highly bent shear layers and a short region of recirculating flow, resulting in low pressure, high drag, and undesirable periodic aerodynamic forces. Control of the wake by affecting the entrainment balance of the shear layers can attenuate vortex shedding and reduce the pressure drag. Different control methodologies to accomplish this goal have been studied with varying degrees of success. Examples of such techniques include inhibiting shear layer interaction with a splitter plate (Bearman, 1965), opposition control of the vortex street (Siegel et al., 2003), and synchronizing the roll up of the upper and lower separated shear layers to prevent asymmetry and decouple the wake and shear layers (Pastoor et al., 2008). In recent years, the three-dimensional spanwise features of wakes have received increased attention due to the contribution they also make to drag and the transition of the wake to turbulence. This has motivated control techniques that involve introducing spanwise variable disturbances into the wake to induce vortex dislocations, a strategy often referred to as distributed forcing. The presence of dislocations is associated with higher base pressure and lower fluctuating aerodynamic forces, and is therefore desirable for drag reduction (Williamson, 1989). Distributed forcing was pioneered as a passive flow control technique by Tombazis and Bearman (1997), who observed cellular shedding patterns in the wake of a bluff body outfitted with a spanwise wavy trailing edge, leading to a 34% increase in base pressure at Red = 40,000. As an active flow control technique, distributed forcing was first investigated by Kim and Choi (2005) with spanwise sinusoidal blowing and suction on a cylinder, and resulted in a 25% drag reduction at Reynolds numbers (Red) up to 3,900. Naghib-Lahouti et al. (2015) performed distributed forcing on a BTE body with a discrete number of plasma actuators spaced at 2.4d on the upper and lower surfaces and observed an increase of 40% in the base pressure at Red = 3,000. The spanwise spacing of 2.4d was selected to match a dominant cellular shedding wavelength observed in BTE body wakes at this Red (Naghib-Lahouti et al., 2014). The present study investigates a new distributed forcing system for a BTE body using an array of synthetic jet actuators. A large number of studies have investigated unsteady forcing to control vortex shedding, with the effects strongly dependent on the excitation frequency and the symmetry/arrangement of actua","PeriodicalId":266791,"journal":{"name":"Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128244098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Direct Numerical Simulations of Particle-Turbulence Interactions","authors":"Changhoon Lee","doi":"10.1615/tsfp10.20","DOIUrl":"https://doi.org/10.1615/tsfp10.20","url":null,"abstract":"","PeriodicalId":266791,"journal":{"name":"Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130801893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relation between Velocity Profile and Friction Factor at High Reynolds Number in Fully Developed Pipe Flow","authors":"N. Furuichi, Y. Terao, Y. Wada, Y. Tsuji","doi":"10.1615/tsfp10.1100","DOIUrl":"https://doi.org/10.1615/tsfp10.1100","url":null,"abstract":"Pipe flow, which is one of the canonical wall-bounded flows, finds wide application in engineering fields. Because knowledge of the physics of pipe flow is very important to achieve effective fluid transport, many studies on fully developed turbulent pipe flow have been performed since the early 1900s. However, even the functional form for the mean velocity profile remains incomplete because of the Reynolds number effect, as summarized by Kim (2012). One of the reason for the inconsistency of the velocity profile formulae is that the wall shear stress used for the scaling of the velocity profile is also inconsistent among previous experiments. Obtaining the wall shear stress (or equivalently the friction factor) is important for not only pipe flows but also for wall-bounded flows in general. The second reason of the inconsistency is the Reynolds number dependency of the velocity profile formula. As investigated in other type of the wall bounded flows, boundary layer and channel flow, the constants in the velocity profile formula are influenced by Reynolds number. To discuss the universality of the velocity profile, the pipe flow experiments at higher Reynolds number region is required. In this paper, new experimental results for the friction factor and the velocity profile at high Reynolds number up to 10 are presented. The Reynolds number dependency of the constants in the formulae of the friction factor and the velocity profile are discussed using the experimental result. Furthermore, to show the reliability of the experimental results, the higher level consistency of the measurement data between the friction factor and velocity profile is presented. In this experiments, the Hi-Reff (High Reynolds number actual flow facility) (Furuichi et al, 2009) was used. The working fluids in this facility is water. The feature of this facility is high Reynolds number and high accurate flowrate measurement. The maximum Reynolds number based on diameter of pipe is ReD=2×10 (based on friction velocity, Reτ=3×10). The flow rate is measured by the static gravimetric method or the reference flowmeters calibrated by the weighing tank. The uncertainty of the flow rate ranges from 0.060% to 0.10% with the coverage factor of k=2. The velocity profile was measured by using laser Doppler velocimetry (LDV). The examined Reynolds number ranges ReD=3.9×10 1.1×10 (Reτ=1.0×10 – 2.1×10). The friction factor is obtained by the measurement of the pressure drop between two pressure taps installed in smooth pipes with D=100 mm and 387 mm. The examined Reynolds number for the friction factor measurement ranges ReD=7.1×10 1.8×10 (Reτ=2.3×10 – 2.7×10). The detail of experimental results are shown in the reference (Furuichi et al., 2015). Using the experimental results, the Reynolds number dependence of the Kármán and the additive constants (κ and B respectively) is investigated as shown in the figure. The behaviors of both constants are found to change at approximately ReD=3×10 5×","PeriodicalId":266791,"journal":{"name":"Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133280231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of vortex packet recovery in perturbed turbulent boundary layers","authors":"Y. Tan, E. Longmire","doi":"10.1615/tsfp10.890","DOIUrl":"https://doi.org/10.1615/tsfp10.890","url":null,"abstract":"Turbulent boundary layers (Reτ = 2500) were perturbed by a spanwise array of cylinders with spacing of S= 0.2δ, where δ is the unperturbed boundary layer thickness. Two cylinder heights were considered, H = 0.2δ (H = 500) and H = δ. Although visualizations suggest that disrupted packet signatures downstream of the H = δ array re-organized from bottom up, autocorrelation magnitudes along the streamwise direction for the flow at z = 125 were reduced relative to unperturbed values up to 7δ downstream of the array suggesting that flow features unrelated to packets remained altered there. On the other hand, spectral energy in large spanwise scales recovered substantially at the same location. For the H = 0.2δ case, previous results showed disrupted packet signatures re-appearing beginning 2δ downstream at z = 300, while packet signatures at z = 500 persisted through the array, supporting a top-down reorganization. However, spanwise characteristics of flow features closer to the wall (z = 125) remained altered relative to the unperturbed flow up to 7δ downstream yet streamwise length scales from autocorrelations at z = 125 and x = 7δ matched unperturbed values. Interestingly, the shape of the spanwise energy spectrum at this location resembled shapes of spectra in planes above, suggesting outer-layer influence.","PeriodicalId":266791,"journal":{"name":"Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114836136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transonic airfoil buffet at high Reynolds number by using wall-modeled large-eddy simulation","authors":"Yuma Fukushima, S. Kawai","doi":"10.1615/tsfp10.1190","DOIUrl":"https://doi.org/10.1615/tsfp10.1190","url":null,"abstract":"In this study, a state-of-the-art wall-modeled large-eddy simulation (WMLES) (Kawai and Larsson, 2012) is applied to the transonic buffet flow over an OAT15A supercritical airfoil at high Reynolds number. Reynolds number and the angle of attack are Rec = 3.0× 10 6 and α = 3.5deg. Two Mach numbers of buffet condition (M∞ = 0.73) and non-buffet condition (M∞ = 0.715) are computed. Computational results are compared with the experimental data (Jacquin et al., 2009) and the results of zonal detached-eddy simulation (DES) (Deck, 2005). To understand the buffet phenomena, the flow physics are investigated and discussed. At last, a new self-sustained oscillation mechanism is proposed and investigated from the obtained results. Figure 1 shows the averaged pressure coefficient. Zonal DES can predict the shock oscillation by tuning the size of RANS region. However, the region in which the shock wave oscillates is estimated more upstream than experiment. Furthermore, the separation near the trailing edge is predicted larger. WMLES at the buffet condition (M∞ = 0.73) can predict the shock oscillation and Cp slope which is observed at the oscillation region in the experiment is also obtained. In addition, the reattachment behind the shock wave and the small separation near the trailing edge are precisely predicted. We propose the new self-sustained oscillation model. In the proposed model, we consider that the pressure fluctuation due to separation of the shear layer drives the shock wave. When the pressure ratio between forward and backward of the shock wave changes, the shock wave should become weak or strong and moves forward or backward to balance the equations across the shock wave. When the shock wave is at the most downstream, relatively large separation occurs and the flow area decreases. Therefore, the flow velocity increases and the pressure behind the shock wave decreases. As a result, pressure ratio decreases and the shock wave should weaken. Then, the shock wave moves upstream. On the other hand, when the shock wave is at the most upstream, the separation disappears and the flow area increases. Therefore, the flow velocity decreases and the pressure behind the shock wave increases. As a result, pressure ratio increases, and the shock wave should become strong and moves downstream. Figure 2 shows the time history of the shock wave position, span averaged pressure and local Mach number near the trailing edge and the separation size. The possibility of the proposed model is confirmed from the results.","PeriodicalId":266791,"journal":{"name":"Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131962360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Turbulence Energetics in an Inclined Interface Richtmyer-Meshkov Instability","authors":"Akshay Subramaniam, S. Lele","doi":"10.1615/tsfp10.970","DOIUrl":"https://doi.org/10.1615/tsfp10.970","url":null,"abstract":"The interaction of a Mach 1.55 shockwave with a nominally inclined interface between N2 and CO2 is considered. Unlike the classical Richtmyer-Meshkov problem, the interface evolution is non-linear from early time and large highly correlated vortical structures are observed even after reshock. Simulations target the experiment of McFarland et al. (2014). Simulations are performed using high-order spectral-like numerics (Lele, 1992). Results from multiple grid resolutions up to 4 billion grid points establish grid convergence. Comparisons to the experiments show that the simulations adequately capture the physics of the problem. The turbulence energetics in the problem is investigated using a TKE balance equation based on Favre-averaging and a scale decomposition analysis. Due to the competing time scales of relaxation after compression of the turbulence by the shock and the circulation time scale, a non-monotonic return to isotropy is seen post reshock. TKE budgets are presented and the effect of the dealiasing-filter is quantified and shown to be small (∼ 10%). The budget shows that pressure-dilatation correlation is important even when the turbulent Mach number is ∼ 0.1 (RMS). Scale decomposition shows that the compressibility is due to a complex pattern of shocks and rarefactions created due to the inhomogeneity in the transverse direction and not due to compressible effects in the turbulent mixing region itself. Energetics are investigated at different scales and show that the net flux of energy to smaller scales is scale invariant in the inertial range. Energy injected into the flow due to shocks and rarefactions is seen to be broadband. Finally, the kinetic energy was decomposed into bins in wavenumber space and a k−2 scaling of the energy spectrum was inferred although a larger range of scales could potentially reveal a different scaling at larger wavenumbers.","PeriodicalId":266791,"journal":{"name":"Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134139505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}