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2018 Joint Thermophysics and Heat Transfer Conference最新文献

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LES of an Asymmetrically Heated High Aspect Ratio Duct at High Reynolds Number at Different Wall Temperatures 不同壁温下高雷诺数下非对称加热高展弦比风管的LES
2018 Joint Thermophysics and Heat Transfer Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-4287
Thomas Kaller, S. Hickel, N. Adams
{"title":"LES of an Asymmetrically Heated High Aspect Ratio Duct at High Reynolds Number at Different Wall Temperatures","authors":"Thomas Kaller, S. Hickel, N. Adams","doi":"10.2514/6.2018-4287","DOIUrl":"https://doi.org/10.2514/6.2018-4287","url":null,"abstract":"We present the results of well-resolved large-eddy simulations (LES) of an asymmetrically heated high aspect ratio cooling duct (HARCD) with an aspect ratio of AR = 4.3 for two different wall temperatures. The temperature difference with respect to the bulk flow is ∆T = 40 K, respectively ∆T = 60 K. The HARCD is operated with liquid water at a Reynolds number of Reb = 110 ⋅ 103 based on bulk velocity and hydraulic diameter. The generic HARCD setup follows a reference experiment. The main goal of the present study is the numerical investigation of the interaction of turbulent heat transfer and the turbulent duct flow, specifically the heating induced changes in mean flow and turbulent statistics with a spatially developing temperature boundary layer. Furthermore, we investigate the influence of asymmetric wall heating on streamwise vorticity and its dynamics as well as the turbulent Prandtl number and the effect of the secondary flow on its distribution.","PeriodicalId":423948,"journal":{"name":"2018 Joint Thermophysics and Heat Transfer Conference","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133316135","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: 3
Insights into Catalytic Mechanism of 4MgCO3Mg(OH)25H2O on Thermal Kinetics and Combustion Behavior of 5-amino-1h-tetrazole Based Propellant 4MgCO3Mg(OH)25H2O对5-氨基-1h-四唑基推进剂热动力学和燃烧行为的催化机理研究
2018 Joint Thermophysics and Heat Transfer Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3760
Dan Zhang, Song Lu, Heping Zhang, Changcheng Liu, Cao Chengyang, Lin Jiang, Z. Gao
{"title":"Insights into Catalytic Mechanism of 4MgCO3Mg(OH)25H2O on Thermal Kinetics and Combustion Behavior of 5-amino-1h-tetrazole Based Propellant","authors":"Dan Zhang, Song Lu, Heping Zhang, Changcheng Liu, Cao Chengyang, Lin Jiang, Z. Gao","doi":"10.2514/6.2018-3760","DOIUrl":"https://doi.org/10.2514/6.2018-3760","url":null,"abstract":"","PeriodicalId":423948,"journal":{"name":"2018 Joint Thermophysics and Heat Transfer Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125242641","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
Diagnostic Investigation of Radiation Effects on Pre-ignition Heat Flux Distribution in Dual Thrust Solid Rockets 辐射对双推力固体火箭点火前热流分布影响的诊断研究
2018 Joint Thermophysics and Heat Transfer Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3765
Vignesh Saravanan, V. Natarajan, S. Anbarasan, R PrasannaT, M Nijanthan, S Vineeshwar, Hemasai N.D, S. Padmanabhan, S. A. Rahman, VR Sanal Kumar
{"title":"Diagnostic Investigation of Radiation Effects on Pre-ignition Heat Flux Distribution in Dual Thrust Solid Rockets","authors":"Vignesh Saravanan, V. Natarajan, S. Anbarasan, R PrasannaT, M Nijanthan, S Vineeshwar, Hemasai N.D, S. Padmanabhan, S. A. Rahman, VR Sanal Kumar","doi":"10.2514/6.2018-3765","DOIUrl":"https://doi.org/10.2514/6.2018-3765","url":null,"abstract":"","PeriodicalId":423948,"journal":{"name":"2018 Joint Thermophysics and Heat Transfer Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130417129","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
Characterization of CO Thermochemistry in Incident Shockwaves CO在入射冲击波中的热化学表征
2018 Joint Thermophysics and Heat Transfer Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3768
B. Cruden, A. Brandis, Megan E. Macdonald
{"title":"Characterization of CO Thermochemistry in Incident Shockwaves","authors":"B. Cruden, A. Brandis, Megan E. Macdonald","doi":"10.2514/6.2018-3768","DOIUrl":"https://doi.org/10.2514/6.2018-3768","url":null,"abstract":"Incident shock waves in pure CO have been characterized in the Electric Arc Shock Tube facility Spectrally and spatially resolved emission spectra characterize radiative signatures from CO in the VUV and mid-infrared and atomic carbon and C 2 in the visible. CO absorption of a single vibrational line is also measured with a tunable diode laser. The experimental data analyzed here are at a pressure of 0.25 Torr in the driven section and span a shock velocity range from 3.4-9.5 km/s. The emission and absorption signals are analyzed to extract temperature relaxation behind the shock which is used to derive the rate of CO dissociation. The emission spectra are compared to results using different kinetic parameters for CO dissociation and C 2 dissociation and exchange. Different rates from the literature are found to match the data from 3.4-6.6 km/s and 6.6-9.5 km/s. Areas for improvement in CO and C 2 radiation modeling are suggested on the basis of the analysis.","PeriodicalId":423948,"journal":{"name":"2018 Joint Thermophysics and Heat Transfer Conference","volume":"297 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134454165","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: 26
Ignition and Damage Thresholds of Materials at Extreme Incident Radiative Heat Flux 材料在极端入射辐射热流下的点火和损伤阈值
2018 Joint Thermophysics and Heat Transfer Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3764
J. Engerer, Alexander L. Brown, J. Christian
{"title":"Ignition and Damage Thresholds of Materials at Extreme Incident Radiative Heat Flux","authors":"J. Engerer, Alexander L. Brown, J. Christian","doi":"10.2514/6.2018-3764","DOIUrl":"https://doi.org/10.2514/6.2018-3764","url":null,"abstract":"","PeriodicalId":423948,"journal":{"name":"2018 Joint Thermophysics and Heat Transfer Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129611345","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: 3
Effects of Zincaluminate on Thermal Behaviors and Combustion Characteristics of 5AT/Sr(NO3)2 Propellant 铝酸锌对5AT/Sr(NO3)2推进剂热性能和燃烧特性的影响
2018 Joint Thermophysics and Heat Transfer Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3911
Cao Chengyang, Song Lu, Dan Zhang, Changcheng Liu, Heping Zhang
{"title":"Effects of Zincaluminate on Thermal Behaviors and Combustion Characteristics of 5AT/Sr(NO3)2 Propellant","authors":"Cao Chengyang, Song Lu, Dan Zhang, Changcheng Liu, Heping Zhang","doi":"10.2514/6.2018-3911","DOIUrl":"https://doi.org/10.2514/6.2018-3911","url":null,"abstract":"","PeriodicalId":423948,"journal":{"name":"2018 Joint Thermophysics and Heat Transfer Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132616578","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
Characterization of a radiometer window for Mars aftbody heating including ablation product deposition using a miniature arc jet 利用微型电弧射流对火星体后加热包括烧蚀产物沉积的辐射计窗口进行表征
2018 Joint Thermophysics and Heat Transfer Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3590
Ruth A. Miller, Chun Y. Tang, Mark S. McGlaughlin, T. White, Thanh S. Ho, Megan E. Macdonald, B. Cruden
{"title":"Characterization of a radiometer window for Mars aftbody heating including ablation product deposition using a miniature arc jet","authors":"Ruth A. Miller, Chun Y. Tang, Mark S. McGlaughlin, T. White, Thanh S. Ho, Megan E. Macdonald, B. Cruden","doi":"10.2514/6.2018-3590","DOIUrl":"https://doi.org/10.2514/6.2018-3590","url":null,"abstract":"","PeriodicalId":423948,"journal":{"name":"2018 Joint Thermophysics and Heat Transfer Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125208620","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: 6
Temperature and CO Number Density Measurements in Shocked CO and CO2 via Tunable Diode Laser Absorption Spectroscopy 用可调谐二极管激光吸收光谱法测量受冲击CO和CO2中的温度和CO数密度
2018 Joint Thermophysics and Heat Transfer Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-4067
Megan E. Macdonald, A. Brandis, B. Cruden
{"title":"Temperature and CO Number Density Measurements in Shocked CO and CO2 via Tunable Diode Laser Absorption Spectroscopy","authors":"Megan E. Macdonald, A. Brandis, B. Cruden","doi":"10.2514/6.2018-4067","DOIUrl":"https://doi.org/10.2514/6.2018-4067","url":null,"abstract":"","PeriodicalId":423948,"journal":{"name":"2018 Joint Thermophysics and Heat Transfer Conference","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127387644","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: 16
Optimization of round-to-slot hole to improve film cooling performance 优化圆槽孔，提高气膜冷却性能
2018 Joint Thermophysics and Heat Transfer Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-4081
H. Ying, Jing-zhou Zhang, Chunhua Wang
{"title":"Optimization of round-to-slot hole to improve film cooling performance","authors":"H. Ying, Jing-zhou Zhang, Chunhua Wang","doi":"10.2514/6.2018-4081","DOIUrl":"https://doi.org/10.2514/6.2018-4081","url":null,"abstract":"","PeriodicalId":423948,"journal":{"name":"2018 Joint Thermophysics and Heat Transfer Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115773497","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
Process Optimization of Ceramic Matrix Composites for Ultrasonically Absorptive TPS Material 超声吸收TPS材料陶瓷基复合材料工艺优化
2018 Joint Thermophysics and Heat Transfer Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-2947
C. Dittert, M. Kütemeyer, M. Kuhn, A. Wagner
{"title":"Process Optimization of Ceramic Matrix Composites for Ultrasonically Absorptive TPS Material","authors":"C. Dittert, M. Kütemeyer, M. Kuhn, A. Wagner","doi":"10.2514/6.2018-2947","DOIUrl":"https://doi.org/10.2514/6.2018-2947","url":null,"abstract":"","PeriodicalId":423948,"journal":{"name":"2018 Joint Thermophysics and Heat Transfer Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117192922","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
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