发动机试验室稳态流场及温度场仿真研究

Simulation study on the steady airflow and temperature field in engine test cell

对发动机试验室内部的气流运动与热量分布进行研究,针对常规发动机试验室空间结构下的三种典型通风形式进行建模,利用仿真软件对每种通风形式下试验室内的流场及温度场进行计算,将计算结果进行对比分析,得出了发动机试验室内流场和温度场的设计原则。试验室内气流的集中、高速流动是降低发动机试验室内温度、实现良好换热的保证,最佳的发动机试验室环境是试验室内温度能满足试验要求,同时试验室内空气能够充分混合流通,保证空气质量。

Researching the air flow and the heat distribution in the engine test cell. The three typical ventilation types in normal engine test cell space structure are modeled, the airflow and temperature field of each ventilation type are calculated in simulation software and the calculation results are com-pared and analyzed. The design principle of the airflow and temperature field in engine test cell is con-cluded. Reducing the temperature and good heat exchange in the engine test cell can be realized by the concentrated and high speed air flow. The best engine test cell environment is that the temperature could meet the engine test requirement and the air in the test cell could be mixed and flow adequately in order to ensure the air quality.