A numerical analysis of high- temperature heat pipe startup from the frozen state Article

Cao, Y, Faghri, A. (1993). A numerical analysis of high- temperature heat pipe startup from the frozen state . JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 115(1), 247-254. 10.1115/1.2910657

cited authors

  • Cao, Y; Faghri, A

authors

abstract

  • 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. © 1993 by ASME.

publication date

  • January 1, 1993

published in

Digital Object Identifier (DOI)

start page

  • 247

end page

  • 254

volume

  • 115

issue

  • 1