论文标题

对局部热非平衡局下1D Darcy-Forchheimer流量的分析研究

Analytical investigation of 1D Darcy-Forchheimer flow under local thermal nonequilibrium

论文作者

Müller, Siegfried, Rom, Michael

论文摘要

在蒸腾冷却的背景下,由温度系统和质量摩托系统组成的1D多孔培养基模型源自2D/3D Darcy-Forchheimer方程。假定冷却液和固体的温度在局部非平衡中。该系统经过分析验证以具有独特的解决方案。蒸腾冷却模拟是通过两域方法进行的,将组装的1D多孔介质溶液与热气流求解器的2D溶液耦合。通过将1D多孔培养基模型与温度系统(包括或忽略流体热传导)应用于后一种简化系统合理的结果相比,获得的结果。

In the context of transpiration cooling, a 1D porous medium model consisting of a temperature system and a mass-momentum system is derived from the 2D/3D Darcy-Forchheimer equations. The temperatures of the coolant and the solid are assumed to be in local nonequilibrium. This system is analytically verified to have a unique solution. Transpiration cooling simulations are performed by a two-domain approach, coupling the assembled 1D porous medium solutions with 2D solutions of a hot gas flow solver. A comparison of results obtained by applying the 1D porous medium model with the temperature system either including or neglecting fluid heat conduction justifies the use of the latter simplified system.

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