Hybrid Parallel Simulations of Fluid Flows in Complex Geometries: Application to the Human Lungs
Hybrid Parallel Simulations of Fluid Flows in Complex Geometries: Application to the Human Lungs
复制标题
复杂几何形状流体流动的混合并行模拟：在人肺中的应用
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
V. Heuveline
中科院分区：
文献类型：
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作者：
M. Krause;T. Gengenbach;V. Heuveline
本文介绍了一种混合并行策略，致力于通过格子玻尔兹曼方法（LBM）模拟复杂几何形状中的流体流动。该方法允许处理共享共享和分布式架构属性的平台，并依赖于空间域分解，其中每个子域代表一个基本块实体，该实体在对称多处理（SMP）系统上求解。主要重点是测试其实现并研究其在具有高度复杂几何形状的实际流体流动问题上的效率。因此，作为一个合适的问题，考虑模拟人肺的呼气，其功能由专用的两尺度模型描述。
In this paper a hybrid parallel strategy dedicated to the simulations of fluid flows in complex geometries by means of Lattice Boltzmann methods (LBM) is introduced. The approach allows coping with platforms sharing both the properties of shared and distributed architectures and relies on spatial domain decomposition where each subdomain represents a basic block entity which is solved on a symmetric multi-processing (SMP) system. Main emphasis is placed on testing its realization and studying its efficiency on a realistic fluid flow problem with a highly complex geometry. Therefore, as a suitable problem the simulation of the expiration in the human lung, whose functionality is described by a dedicated two-scale model, is considered.