高速列车车厢冬季送风均匀性数值模拟
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摘要
探讨某高速列车车厢通风系统的布置形式。采用CFD方法,针对某节高速列车车厢,对冬季送风系统送风均匀性进行模拟研究。分析影响高速列车车厢狭长空间内风管送风均匀性的主要原因,提出通过改变送风支管截面积提高送风均匀性的优化方法。对优化结果进行了实验验证,模拟结果与实验结果基本吻合。
The layout form of ventilation and air conditioning system in a high-speed train carriage is discussed. The ventilating uniformity of the ventilation and air conditioning system in a high-speed train carriage in winter is simulated by CFD technique. The main reason influencing the ventilating uniformity of air duct in narrow space of high-speed train carriage is analyzed. The optimization method of changing the crosssectional area of ventilating branch pipe to improve the ventilating uniformity is proposed. The optimization results are verified experimentally,and the simulation results are basically consistent with the experimental results.
The layout form of ventilation and air conditioning system in a high-speed train carriage is discussed. The ventilating uniformity of the ventilation and air conditioning system in a high-speed train carriage in winter is simulated by CFD technique. The main reason influencing the ventilating uniformity of air duct in narrow space of high-speed train carriage is analyzed. The optimization method of changing the crosssectional area of ventilating branch pipe to improve the ventilating uniformity is proposed. The optimization results are verified experimentally,and the simulation results are basically consistent with the experimental results.
引文
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