流体模拟的耦合计算模型
首发时间:2010-05-25
摘要:本文提出一种新的耦合计算模型来模拟两种流体的交互,同时对流体的受热运动进行了深入分析,建立了流体受热运动的物理模型。使用SPH计算流体的主体,用稳定流方法计算温度并耦合SPH以达到对N-S方程的外力项加以修正的目的,使流体运动更自然,更符合物理规律。
关键词: 稳定流 SPH 欧拉法 拉格朗日法 外力修正 耦合
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Coupled computation model in fluid simulation
Abstract:This paper raises a new coupled computational model to simulate two kinds of fluid interaction, at the same time the movement of heated fluid is analyzed depth, and a physics model is established. The main part of fluid is computed using SPH method, the temperature field is computed using stable flow method and coupling with SPH method in order to correcting N-S equation's external force term, make fluid motion more natural and more in line with the laws of physics.
Keywords: stable flow SPH Euler Method Lagrange Method External Force Correction Coupling
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