流体の流れ方向の温度変化を考慮した熱解析法

概要

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As a convective boundary condition in thermal analysis by a finite-element method, heat transfer coefficients and circumferential fluid temperatures are generally specified. However, when fluid temperature varies greatly along a flow path, it is difficult to specify fluid temperature distribution in advance. In the case of a combined analysis of flow and heat transfer, a large-scale computer is needed. Furthermore, it takes much time to solve the flow equation. In designing machines, a simple method for predicting cooling performance is often more desirable than precise flow analysis. This paper shows a simple thermal analysis method considering the temperature change of a fluid along a path without flow analysis by specifying heat transfer coefficients. An example of the thermal analysis of a general-purpose inverter is shown.
社団法人日本機械学会の論文
1990-09-25