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

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EVIDENCE FOR HAIRPIN PACKET STRUCTURE IN DNS CHANNEL FLOW DNS通道流中发夹包结构的证据
Proceeding of First Symposium on Turbulence and Shear Flow Phenomena Pub Date : 1999-11-01 DOI: 10.1615/tsfp1.980
Zi C. Liu, R. Adrian
{"title":"EVIDENCE FOR HAIRPIN PACKET STRUCTURE IN DNS CHANNEL FLOW","authors":"Zi C. Liu, R. Adrian","doi":"10.1615/tsfp1.980","DOIUrl":"https://doi.org/10.1615/tsfp1.980","url":null,"abstract":"","PeriodicalId":222466,"journal":{"name":"Proceeding of First Symposium on Turbulence and Shear Flow Phenomena","volume":"181 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116414943","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}
引用次数: 5
SCALING LAWS OF TEMPERATURE AND VELOCITY FLUCTUATIONS IN TURBULENT THERMAL CONVECTION 湍流热对流中温度和速度波动的标度规律
Proceeding of First Symposium on Turbulence and Shear Flow Phenomena Pub Date : 1999-11-01 DOI: 10.1615/tsfp1.870
R. Adrian, R. Fernandes
{"title":"SCALING LAWS OF TEMPERATURE AND VELOCITY FLUCTUATIONS IN TURBULENT THERMAL CONVECTION","authors":"R. Adrian, R. Fernandes","doi":"10.1615/tsfp1.870","DOIUrl":"https://doi.org/10.1615/tsfp1.870","url":null,"abstract":"","PeriodicalId":222466,"journal":{"name":"Proceeding of First Symposium on Turbulence and Shear Flow Phenomena","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121455185","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}
引用次数: 0
INTERACTION OF VORTICITY, RATE OF STRAIN, AND SCALAR GRADIENT IN STABLY STRATIFIED HOMOGENEOUS SHEARED TURBULENCE 稳定分层均匀剪切湍流中涡度、应变率和标量梯度的相互作用
Proceeding of First Symposium on Turbulence and Shear Flow Phenomena Pub Date : 1999-11-01 DOI: 10.1615/tsfp1.1150
P. Diamessis, K. Nomura
{"title":"INTERACTION OF VORTICITY, RATE OF STRAIN, AND SCALAR GRADIENT IN STABLY STRATIFIED HOMOGENEOUS SHEARED TURBULENCE","authors":"P. Diamessis, K. Nomura","doi":"10.1615/tsfp1.1150","DOIUrl":"https://doi.org/10.1615/tsfp1.1150","url":null,"abstract":"","PeriodicalId":222466,"journal":{"name":"Proceeding of First Symposium on Turbulence and Shear Flow Phenomena","volume":"479 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133679606","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}
引用次数: 2
DIRECT NUMERICAL SIMULATION OF THE SPATIALLY DEVELOPING TURBULENT MIXING LAYER 空间发展湍流混合层的直接数值模拟
Proceeding of First Symposium on Turbulence and Shear Flow Phenomena Pub Date : 1999-09-11 DOI: 10.1615/tsfp1.990
I.C.C. de Bruin, B. Geurts, J. Kuerten
{"title":"DIRECT NUMERICAL SIMULATION OF THE SPATIALLY DEVELOPING TURBULENT MIXING LAYER","authors":"I.C.C. de Bruin, B. Geurts, J. Kuerten","doi":"10.1615/tsfp1.990","DOIUrl":"https://doi.org/10.1615/tsfp1.990","url":null,"abstract":"A direct numerical simulation of transitional and developed turbulent flow in a three-dimensional spatially developing subsonic mixing layer is performed. The streamwise, normal and spanwise momenta are sampled at characteristic locations in the flow. The corresponding correlation time is computed in the turbulent regime and compared to the averaging time needed to obtain sufficiently accurate time-averaged flow quantities. Some resulting probability density functions are shown and discussed.","PeriodicalId":222466,"journal":{"name":"Proceeding of First Symposium on Turbulence and Shear Flow Phenomena","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133175519","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}
引用次数: 2
TURBULENT ROUGH BED BOUNDARY LAYERS IN THE PRESENCE OF NON-LINEAR SURFACE WAVES 非线性表面波存在下的湍流粗糙床边界层
Proceeding of First Symposium on Turbulence and Shear Flow Phenomena Pub Date : 1999-09-01 DOI: 10.1615/tsfp1.720
Mark Cotton, P. Stansby
{"title":"TURBULENT ROUGH BED BOUNDARY LAYERS IN THE PRESENCE OF NON-LINEAR SURFACE WAVES","authors":"Mark Cotton, P. Stansby","doi":"10.1615/tsfp1.720","DOIUrl":"https://doi.org/10.1615/tsfp1.720","url":null,"abstract":"","PeriodicalId":222466,"journal":{"name":"Proceeding of First Symposium on Turbulence and Shear Flow Phenomena","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114200899","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}
引用次数: 0
LES OF ROTATING TURBULENT PIPE FLOW WITH TWO SUBGRID SCALE MODELS 基于两个亚网格尺度模型的旋转湍流管道流动模型
Proceeding of First Symposium on Turbulence and Shear Flow Phenomena Pub Date : 1999-07-01 DOI: 10.1615/tsfp1.1380
Zhiyin Yang, J. McGuirk
{"title":"LES OF ROTATING TURBULENT PIPE FLOW WITH TWO SUBGRID SCALE MODELS","authors":"Zhiyin Yang, J. McGuirk","doi":"10.1615/tsfp1.1380","DOIUrl":"https://doi.org/10.1615/tsfp1.1380","url":null,"abstract":"","PeriodicalId":222466,"journal":{"name":"Proceeding of First Symposium on Turbulence and Shear Flow Phenomena","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122780200","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}
引用次数: 5
A STUDY OF TURBULENCE IN AN EVOLVING STABLE ATMOSPHERIC BOUNDARY LAYER USING LARGE-EDDY SIMULATION 用大涡模拟研究演化稳定大气边界层中的湍流
Proceeding of First Symposium on Turbulence and Shear Flow Phenomena Pub Date : 1999-05-01 DOI: 10.1615/tsfp1.940
R. Cederwall, R. Street
{"title":"A STUDY OF TURBULENCE IN AN EVOLVING STABLE ATMOSPHERIC BOUNDARY LAYER USING LARGE-EDDY SIMULATION","authors":"R. Cederwall, R. Street","doi":"10.1615/tsfp1.940","DOIUrl":"https://doi.org/10.1615/tsfp1.940","url":null,"abstract":"A study is made of the effects of stable stratification on the fine-scale features of the flow in an evolving stable boundary layer (SBL). Large-eddy simulation (LES) techniques are used so that spatially and temporally varying and intermittent features of the turbulence can be resolved; traditional Reynolds-averaging approaches are not well suited to this. The LES model employs a subgrid turbulence model that allows upscale energy transfer (backscatter) and incorporates the effects of buoyancy. The afternoon, evening transition, and nighttime periods are simulated. Highly anisotropic turbulence is found in the developed SBL, with occasional periods of enhanced turbulence. Energy backscatter occurs in a fashion similar to that found in DNS, and is an important capability in LES of the SBL. Coherent structures are dominant in the SBL, as the damping of turbulent energy occurs more at the smaller, less organized scales.","PeriodicalId":222466,"journal":{"name":"Proceeding of First Symposium on Turbulence and Shear Flow Phenomena","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123986071","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}
引用次数: 2
VORTICITY FIELD EVOLUTION IN A FORCED WAKE 强迫尾流中的涡度场演化
Proceeding of First Symposium on Turbulence and Shear Flow Phenomena Pub Date : 1999-03-15 DOI: 10.21236/ADA386755
R. Cohn, M. Koochesfahani
{"title":"VORTICITY FIELD EVOLUTION IN A FORCED WAKE","authors":"R. Cohn, M. Koochesfahani","doi":"10.21236/ADA386755","DOIUrl":"https://doi.org/10.21236/ADA386755","url":null,"abstract":"Abstract : The purpose of this work is to quantify the vorticity evolution in the flow field of the forced wake of a splitter plate inside a confining geometry. The interest in this flow stems from the fact that forcing a low Reynolds number 2-D wake can lead to a highly three-dimensional flow and a large increase in mixing. The authors' recent estimates, based on chemically reacting laser induced fluorescence (LIF) measurements, report the amount of molecularly mixed fluid in terms of mixed-fluid fraction to be 2.5 to 3 times larger than that in high Reynolds number natural two-stream mixing layers. Both reacting and non-reacting LIF data connect this increase in mixing to the downstream evolution of the streamwise vorticity, which is generated by the reorientation and stretching of spanwise vorticity near the side walls of the flow facility. It is believed that understanding the vorticity interaction with walls, its dynamics, and downstream evolution will be helpful to an overall strategy for mixing enhancement and control. The measurements were carried out by Molecular Tagging Velocimetry (MTV), a technique that takes advantage of molecules with long-lived excited states for nonintrusive, multi-point measurements of various fluid dynamical quantities. Small regions of the flow were tagged by a laser and their subsequent evolution was monitored over the luminescence lifetime of the molecule. A two-detector imaging system was used to acquire an image of the initially tagged regions and a subsequent image of these regions convected by the flow over a prescribed time delay. The Lagrangian displacement vectors from such image pairs were computed using a spatial correlation technique. The particular flow investigated here was highly three dimensional. This application highlights the capability of MTV to make measurements when strong out-of-plane motions are present. (5 refs.)","PeriodicalId":222466,"journal":{"name":"Proceeding of First Symposium on Turbulence and Shear Flow Phenomena","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128625606","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}
引用次数: 1
DIRECT NUMERICAL SIMULATION OF TURBULENT FREE-SURFACE FLOW 湍流自由表面流动的直接数值模拟
Proceeding of First Symposium on Turbulence and Shear Flow Phenomena Pub Date : 1998-11-01 DOI: 10.1615/tsfp1.1000
T. Kunugi, S. Satake, Y. Ose
{"title":"DIRECT NUMERICAL SIMULATION OF TURBULENT FREE-SURFACE FLOW","authors":"T. Kunugi, S. Satake, Y. Ose","doi":"10.1615/tsfp1.1000","DOIUrl":"https://doi.org/10.1615/tsfp1.1000","url":null,"abstract":"","PeriodicalId":222466,"journal":{"name":"Proceeding of First Symposium on Turbulence and Shear Flow Phenomena","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128625132","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}
引用次数: 10
THE SELF-SIMILAR, TURBULENT, THREE-DIMENSIONAL WALL JET 自相似的湍流三维壁面射流
Proceeding of First Symposium on Turbulence and Shear Flow Phenomena Pub Date : 1900-01-01 DOI: 10.1615/tsfp1.1800
T. Craft, B. Launder
{"title":"THE SELF-SIMILAR, TURBULENT, THREE-DIMENSIONAL WALL JET","authors":"T. Craft, B. Launder","doi":"10.1615/tsfp1.1800","DOIUrl":"https://doi.org/10.1615/tsfp1.1800","url":null,"abstract":"","PeriodicalId":222466,"journal":{"name":"Proceeding of First Symposium on Turbulence and Shear Flow Phenomena","volume":"105 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":"116657176","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}
引用次数: 10
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