Numerical Simulations of Heat Transfer and Fluid Flow Problems Using an Immersed-Boundary Finite-Volume Method on NonStaggered Grids
Numerical Simulations of Heat Transfer and Fluid Flow Problems Using an Immersed-Boundary Finite-Volume Method on NonStaggered Grids
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DOI：
10.1080/10407790590935975
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发表时间：
2005-07
期刊：
影响因子：
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通讯作者：
J. R. Pacheco;A. Pacheco-Vega;T. Rodić;R. Peck
中科院分区：
文献类型：
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作者：
J. R. Pacheco;A. Pacheco-Vega;T. Rodić;R. Peck
本文描述了浸入边界技术在模拟复杂几何形状上或内部流体流动和传热问题中的应用。该方法基于分步法进行时间积分。采用有限体积非交错网格技术将控制方程离散化，并在规则网格上求解。狄利克雷和诺伊曼类型边界条件的实现被开发和完全验证。利用本研究中考虑的技术，模拟了几种现象上不同的流体流动和传热问题。该方法的精度为二阶，并与以往的数值模拟和室内实验结果进行了比较。
ABSTRACT This article describes the application of the immersed boundary technique for simulating fluid flow and heat transfer problems over or inside complex geometries. The methodology is based on a fractional step method to integrate in time. The governing equations are discretized and solved on a regular mesh with a finite-volume nonstaggered grid technique. Implementations of Dirichlet and Neumann types of boundary conditions are developed and completely validated. Several phenomenologically different fluid flow and heat transfer problems are simulated using the technique considered in this study. The accuracy of the method is second-order, and the efficiency is verified by favorable comparison with previous results from numerical simulations and laboratory experiments.