狭い平行流路における希薄気体のチョーク流れと熱伝達 : 一様熱流束壁面の場合

概要

論文の詳細を見る
The characteristics of discharge and heat transfer of the continuum and slip choked flows through a narrow parallel-plate channel with uniform heat flux wall are studied by means of experiment, numerical simulation and analytical solution. The numerical results of the discharge coefficient C_d and wall surface temperature distributions agree with the experimental data. The decrease of C_d caused by the heating effect can be correlated with the dimensionless heat input. The analytical expressions of the Nusselt numbers for the developed incompressible slip flow including the viscous-heating are obtained. The Nusselt number based on the adiabatic wall temperature cooperated with the increase of local total temperature for heated wall is proposed, which is free of the viscous heating effect and proved to consistent with the common Nusselt number for low speed internal flow.
社団法人日本機械学会の論文
2000-03-25