机械
热力学
流量(数学)
压缩性
材料科学
热管
边值问题
传热
物理
量子力学
作者
Yiding Cao,Amir Faghri
出处
期刊:Journal of heat transfer
[ASME International]
日期:1993-02-01
卷期号:115 (1): 247-254
被引量:81
摘要
Continuum and rarefied vapor flows-co-exist along the heat pipe length for most of the startup period. A two-region model is proposed in which the vapor flow in the continuum region is modeled by the compressible Navier-Stokes equations, and the vapor flow in the rarefied region is simulated by a self-diffusion model. The two vapor regions are linked with appropriate boundary conditions, and heat pipe wall, wick, and vapor flow are solved as a conjugate problem. The numerical solutions for the entire heat pipe startup process from the frozen state are compared with the corresponding experimental data with good agreement.
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