本文采用可压缩流动的SIMPLE算法对壁温周期变化引起的气体中的一维热声波的产生和传播进行了数值模拟,分析了其中的流动和换热规律.计算结果表明,壁面温度周期变化可以产生大振幅的热声波,当其达到准平衡状态时温度产生稳态的超温现象,超温幅度的大小和极值的位置随着加热温度的振幅和频率变化而不同.超温现象导致冷壁面的温度梯度增大,强化了介质与冷壁面间的换热.
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