Numerical Simulation of the Heat Convection by Using the Low-Mach-Number Approximation.

DOI IR (HANDLE) Web Site Web Site Web Site 16 References Open Access

Bibliographic Information

Other Title
  • 低マッハ数近似による熱対流の数値シミュレーション
  • テイマッハスウ キンジ ニ ヨル ネツ タイリュウ ノ スウチ シミュレーション

Search this article

Description

The natural convection with large temperature difference is computed numerically using the Low-Mach-Number approximation with temperature dependent viscosity and thermal conductivity. In this study staggered grid system is used in order to hold down the numerical oscillation. Firstly, steady laminar natural convection above a horizontal heat source is simulated in order to validate the simulation method. The result is in good agreement with the analytical solution. Secondly, two dimentional flow field driven by two parallel heat sources is computed. This boundary condition may be regarded as a model situation of the big fire covering both sides of a wide straight road. At the same time, it is interesting to investigate interactions between two thermal plumes. The numerical results disclosed different flow behavior when the imposed temperature of the heat sources is changed and the rest of the governing system parameters are varied.

Journal

References(16)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top