Coupled Vapor and Liquid Flows in Regular-Polygonal Micro Heat Pipes at Zero Viscosity Ratio

Heat and mass transfer in polygonal micro heat pipes under small imposed temperature differences

“…The coupled fluid-flow problem (3.22)-(3.28) is also solved by a second-order finite-difference method. Details of that numerical method are described by Rao and Wong [44] and Rao [36]. We find that the results calculated by the finite-element method agrees with that by the finite-difference method to four significant digits.…”