Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)最新文献_第4页

A Numerical Study of Unsteady Natural Convection from Two-Sided Thin Horizontal Isothermal Plates 双面薄水平等温板非定常自然对流数值研究

Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023) Pub Date : 2023-06-01 DOI: 10.11159/ffhmt23.108

K. Bandyopadhyay, P. Oosthuizen, Qingguo Li

{"title":"A Numerical Study of Unsteady Natural Convection from Two-Sided Thin Horizontal Isothermal Plates","authors":"K. Bandyopadhyay, P. Oosthuizen, Qingguo Li","doi":"10.11159/ffhmt23.108","DOIUrl":"https://doi.org/10.11159/ffhmt23.108","url":null,"abstract":"Unsteady natural convective heat transfer following sudden heating of two-sided, thin isothermal horizontal plates with complex shapes has been numerically studied. The plates were isothermal and exposed to air at ambient conditions. Three different plate shapes were considered. Variations of the heat transfer rates, expressed in terms of the Nusselt number with dimensionless time for various Rayleigh numbers were first obtained with the square root of the plates’ surface area being used as the length scale. Then, the heat transfer rates for steady state were obtained with the same length scale being used. The transient heat transfer rate results showed that depending on the value of the Rayleigh number, the Nusselt number either gradually decreased to a steady state value or first decreased to a minimum and then increased to the steady state value. Similar Nusselt number variation with time were obtained for all plate shapes considered. Now, in studies of steady state natural convective heat transfer rates from horizontal plates with different shapes, it has been found that if 4*Area/Perimeter is used as the length scale in presenting the results, the variation of Nusselt number with Rayleigh number were essentially the same for all shapes considered. Therefore, the unsteady state results obtained in the present study were re-expressed using 4*Area/Perimeter as the length scale and it was found that the variations of Nusselt number with dimensionless time for various Rayleigh numbers for the plate shapes considered, were much closer to each other when 4*area/perimeter was used as the length scale than when the square root of the plate area was used as the length scale.","PeriodicalId":307960,"journal":{"name":"Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)","volume":"358 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122733159","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

Electrical Effects in Liquid Droplets 液滴中的电效应

Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023) Pub Date : 2023-06-01 DOI: 10.11159/ffhmt23.001

J. M. Floryan

引用次数: 0

The Effect of Nanoparticle Aggregation on the Radiative Properties of Plasmonic Nanofluid during Light-induced Vaporization Process 光诱导汽化过程中纳米粒子聚集对等离子体纳米流体辐射特性的影响

Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023) Pub Date : 2023-06-01 DOI: 10.11159/ffhmt23.136

Yifan Zhang, Wei An, Chang Zhao, Qingchun Dong

引用次数: 0

Dynamics of a Rotating Core-Annular Flow at Inertial Fluid Oscillations 惯性流体振荡下旋转岩心-环空流动动力学

Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023) Pub Date : 2023-06-01 DOI: 10.11159/ffhmt23.146

O. Vlasova, I. Karpunin, N. Kozlov

引用次数: 0

Thermal “Vibrational” Convection in Thick Rotating Horizontal Annulus 厚旋转水平环中的热“振动”对流

Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023) Pub Date : 2023-06-01 DOI: 10.11159/ffhmt23.147

A. Vjatkin, R. Sabirov, V. Kozlov

引用次数: 0

CFD Study Of Boss Fins’ Effect On Performance Of Marine Propellers 桨叶对船用螺旋桨性能影响的CFD研究

Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023) Pub Date : 2023-06-01 DOI: 10.11159/ffhmt23.175

Akshat Verma, Mohit Kapoor, Neeraj Kumbhakarna

引用次数: 0

Numerical Study Of Transverse Pitch Effect On Pressure Loss In An Inline Array Of Elliptical Pins 横向节距对直线椭圆管脚阵列压力损失影响的数值研究

Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023) Pub Date : 2023-06-01 DOI: 10.11159/ffhmt23.172

J. Jaseliūnaitė, M. Šeporaitis

引用次数: 0

Mass transfer and Shear Environment of an Aerated Coaxial Mixer Containing a Shear-thinning Fluid 含剪切稀化流体的加气同轴混合器传质与剪切环境

Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023) Pub Date : 2023-06-01 DOI: 10.11159/ffhmt23.148

A. Rahimzadeh, F. Ein‐Mozaffari, A. Lohi

引用次数: 0

A Study on the Heat Transfer Characteristics of Semi- Flooded Type Evaporator Fin Tube for Adsorption Chiller 吸附式冷水机半淹水式蒸发器翅片管换热特性研究

Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023) Pub Date : 2023-06-01 DOI: 10.11159/ffhmt23.180

Seh-Chul Noh, Van Cong Le, Huynh Tan Loc, Van Hau Duong, C. Park

引用次数: 0

Comparison of Hybrid Cooling Concepts for Electric Battery Packs 电池组混合冷却概念的比较

Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023) Pub Date : 2023-06-01 DOI: 10.11159/ffhmt23.164

Seham Shahid, M. Agelin-chaab

{"title":"Comparison of Hybrid Cooling Concepts for Electric Battery Packs","authors":"Seham Shahid, M. Agelin-chaab","doi":"10.11159/ffhmt23.164","DOIUrl":"https://doi.org/10.11159/ffhmt23.164","url":null,"abstract":"– In this paper, a hybrid thermal management strategy is proposed to increase the temperature uniformity and improve cooling within a Lithium-ion battery pack. Three different configurations are developed and compared. In all three configurations, the phase change material is placed directly with the cells, and liquid channels are placed in the battery pack to extract heat from the phase change materials. Furthermore, an air duct is placed at the top of the battery to extract heat from the fluids that are stationary within the liquid channels. In the first configuration, the liquid channels are placed in between the phase change material. In the second configuration, the location of the liquid channel is changed such that a part of it is in direct contact with the cells. This configuration is then modified for the third configuration such that for every three cells, there are two liquid channels. Transient numerical studies were conducted, and the results indicated that through the first configuration, the maximum temperature was limited to 31.5 ° C and the temperature uniformity to 1.75 ° C. Moreover, this strategy does not require excessive pumping fluid power and high air velocities, which implies that less energy is required for the operation of the thermal management system.","PeriodicalId":307960,"journal":{"name":"Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114898923","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