A213 Development of liquid-gas two-phase flow solver towards simulation of oscillating heat pipe by large-scale parallel computers

Abstract

An efficient numerical method for large scaled parallel computation is developed to investigate mechanism of Oscillating Heat Pipe (OHP). The flow inside OHP is approximated as compressible flow due to effect of pressure wave propagation from large temperature difference. Interface between gas and liquid phases is expressed by level-set and Heaviside functions. In this paper, effect of numerical dissipation of advection term is investigated to keep volume of a rising bubble. An innovative algorithm to solve acoustic system in the current time marching scheme should be considered to realize rapid large scaled parallel computation of OHP as a future work.