对流换热系数(convective heat transfer coefficient)是描述通过对流传热的能力的参数。对流换热系数一般用h表示。在Fluent中,可以使用不同的模型和方法来计算对流换热系数。对于流体流动问题,可以通过设置壁面边界条件中的湍流模型来估算对流换热系数。对于流动问题,对流换热系数的准确计算对于系统的热传输分析和优化非常重要...
the convective heat transfer coefficient h, the pressure drop ΔP, aswell as the Reynolds number Reh and the channel hydraulic diameter Dh, are determined in the following
(1984—),男,讲师,研究方向为盘式制动器热机耦合理论.E mail:zhjian127@163.com 引文格式:谭学龙,左新龙,张建,等.基于FLUENT的制动盘对流换热系数研究[J].江苏科技大学学报(自然科学版),2016,30(3):254-259. dio:10.3969/j.issn.1673-4807.2016.03.010. Researchonconvectiveheattransfercoefficients ofbrakedisc...
Fluent中包含三种壁面沸腾模型:RPI Boiling Model、Non-equilibrium Boiling及Critical Heat Flux。如下图所示。 △ 选择壁面沸腾模型 2 RPI模型 RPI模型将壁面到液相的总热流分为对流热流(convective)、淬火热流(quenching heat flux)以及蒸发热流(evaporative heat flux)三部分: 加热壁面面积被分为两部分:被成核气...
New|O-Grid Mesh Creation In ANSYS | Convective Heat Transfer Coefficient Results 24:23 New|Fluid Flow & Heat Transfer Analysis in a Conical Helical Tube | Part 2/2 23:05 New|Analysis of Heat Conduction from Imprint Faces at the Corners of a Cuboid 22:34 New|Axisymmetric Flow & Heat Tran...
New|O-Grid Mesh Creation In ANSYS | Convective Heat Transfer Coefficient Results 24:23 New|Fluid Flow & Heat Transfer Analysis in a Conical Helical Tube | Part 2/2 23:05 New|Analysis of Heat Conduction from Imprint Faces at the Corners of a Cuboid ...
对于涉及到Lagrangian wall film model的模拟,现在可以可以convective wall-film heat transfer模型,该模型是Fluent 2022 R2中的beta功能。该模型进行了改进,现在加入了对运动壁面上的撞击的修正及湍流膜的近似。此模型适用于模拟较厚的油膜、高速油膜、高普朗特数液体油膜以及射流冲击形成的油膜。
25、er斯坦顿数Stantonnumber对流convection自由对流naturalconvection,free强迫对流forcedconvection热对流heatconvection质量传递masstransfer传质系数masstransfercoefficient热量传递heattransfer传热系数heattransfercoefficient对流传热convectiveheattransfer辐射传热radiativeheattransfer动量交换momentumtransfer能量传递energytransfer传导conductio...
Key Words: lithium-ion battery; thermal performance; charge and discharge rate; convective heat transfer coefficient; inlet wind speed; inlet air temperature 0 引言 锂离子电池因能量密度大、高效率、低自放电和循环寿命长等优点被广泛用作电动汽车的储能系统[1],但充放电过程大量热累积导致电池组温度升高...
Key Words: lithium-ion battery; thermal performance; charge and discharge rate; convective heat transfer coefficient; inlet wind speed; inlet air temperature 0 引言 锂离子电池因能量密度大、高效率、低自放电和循环寿命长等优点被广泛用作电动汽车的储能系统[1],但充放电过程大量热累积导致电池组温度升高,...