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EFFICIENT COMPUTATION FOR GENERALISED FREE-SURFACE MULTI-PHASE SMOOTHED PARTICLE HYDRODYNAMICS (SPH) USING GRAPHICS PROCESSING UNITS (GPUs)

使用图形处理单元 (GPU) 高效计算广义自由表面多相平滑粒子流体力学 (SPH)

基本信息

批准号：
EP/H003045/1
负责人：
Benedict Rogers
金额：
$ 47.48万
依托单位：
University of Manchester
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2010
资助国家：
英国
起止时间：
2010 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FH003045%2F1
关键词：
EFFICIENT COMPUTATION GENERALISED FREE SURFACE

项目摘要

Great progress has been made in the last 20 years in computational fluid dynamics (CFD) with major developments in commercial general-purpose codes and more specialised shallow flow and wave propagation modelling. However, complex, generally highly nonlinear and distorted, surface motion, involving for example wave breaking, bore propagation, aeration and debris transport, has remained largely intractable. In this respect the novel method of smoothed particle hydrodynamics (SPH) holds great promise. SPH is a meshless method and possesses some unique advantages over conventional grid-based approaches; no explicit treatment of the free surface and no computational grid mean that sophisticated meshing is not needed for complex geometries. Recent theoretical advances have been proven in 2-D but the major practical limitation of the method lies in the very large number of particles required for converged solutions. To address this, High Performance Computing (HPC) has been applied in 3-D as well as 2-D in several academic and industrial research centres (EDF, VA TECH Hydro, ESI BV). There is a most attractive alternative however, originating from the computer games industry which has given rise to Graphics Processing Units (GPUs) of parallel architecture which may be exploited for SPH. The aim of this proposal is to exploit GPUs for 3-D free-surface problems, including violent and multi-phase effects, spanning a range of industries such as for offshore or marine engineers or naval architects, civil engineers undertaking flood risk management and other areas with complex free-surface, generally multi-phase flows such as in the nuclear industry.

在过去的20年里，计算流体动力学（CFD）取得了很大的进展，在商业通用代码和更专业的浅水流动和波传播建模方面取得了重大进展。然而，复杂的，通常是高度非线性和扭曲的，表面运动，涉及例如波浪破碎，孔传播，曝气和碎片运输，仍然在很大程度上难以处理。在这方面，光滑粒子流体动力学（SPH）的新方法具有很大的希望。SPH是一种无网格方法，与传统的基于网格的方法相比具有一些独特的优点;没有对自由表面的显式处理，也没有计算网格，这意味着复杂的几何形状不需要复杂的网格划分。最近的理论进展已被证明在2-D，但该方法的主要实际限制在于收敛的解决方案所需的粒子数量非常大。为了解决这个问题，高性能计算（HPC）已经在几个学术和工业研究中心（EDF，VA TECH Hydro，ESI BV）应用于3D和2D。然而，有一个最有吸引力的替代方案，起源于计算机游戏行业，该行业已经产生了并行架构的图形处理单元（GPU），可以用于SPH。该提案的目的是利用GPU解决3-D自由表面问题，包括剧烈和多相效应，跨越一系列行业，例如近海或海洋工程师或海军建筑师，承担洪水风险管理的土木工程师以及具有复杂自由表面的其他领域，通常是多相流，例如核工业。