本文将基于贴体坐标的非稳态导热POD低阶模型应用于冷热油交替输送热力快速计算中,并且详细介绍了POD低阶模型的实施方案.在低阶模型的求解过程中针对管道热力影响区域内各部分导热系数相差达到300倍左右,文中采用更符合基函数空间导数物理意义的离散格式代替传统的中心差分格式来对其进行离散.在本文的算例中POD低阶模型平均计算误差不超过0.35℃,计算速度为传统的有限容积法的260倍左右.
参考文献
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