C143 自動車用HVACにおける高・低温空気流の乱流混合 : 平行せん断層の数値計算(C-14 乱流熱物質移動および反応流(2),一般講演)

概要

論文の詳細を見る
In HVAC (Heating, Ventilating, Air Conditioning) unit used in an automobile air-conditioning system, hot air heated by a heater core and cold air cooled by an evaporator is mixed to control the air temperature blown into the compartment. In simulating numerically the temperature control characteristics of the HVAC, the modeling of turbulent thermal mixing process is a key issue for improving the performance of the simulation. In this study, as the first step to make clear the performance of turbulent heat transfer models applied to the mixing of hot and cold air in HVAC, the turbulent thermal mixing in a planar shear layer has been simulated with several turbulent models and the results have been compared with experimental ones. It is found that the combination of TCL SMC and (HO) GGDH models can predict the distributions of turbulent heat fluxes and mean temperature with a high accuracy, and it is expected to have aptitude for the simulation of thermal mixing in HVAC.
日本流体力学会の論文
2004-08-09