Validation of the GPU-Accelerated CFD Solver elbe for Free Surface Flow Problems in Civil and Environmental Engineering

Computation

Christian F. Jan෾n¹  Dennis Mierke²  Micha �rr࿌k²  Silke Gralher²  Thomas Rung² 

[1] Institute for Fluid Dynamics and Ship Theory, Hamburg University of Technology, Am Schwarzenberg-Campus 4, 21073 Hamburg, Germany;

关键词: elbe code;    wave propagation;    inundation;    wave impact;    debris flow;    wave-current-induced loads;    vortex-induced vibrations;    lattice Boltzmann method;    GPU;   

DOI  :  10.3390/computation3030354

来源: mdpi

【 摘 要 】

This contribution is dedicated to demonstrating the high potential and manifold applications of state-of-the-art computational fluid dynamics (CFD) tools for free-surface flows in civil and environmental engineering. All simulations were performed with the academic research code elbe (efficient lattice boltzmann environment, http://www.tuhh.de/elbe). The elbe code follows the supercomputing-on-the-desktop paradigm and is especially designed for local supercomputing, without tedious accesses to supercomputers. elbe uses graphics processing units (GPU) to accelerate the computations and can be used in a single GPU-equipped workstation of, e.g., a design engineer. The code has been successfully validated in very different fields, mostly related to naval architecture and mechanical engineering. In this contribution, we give an overview of past and present applications with practical relevance for civil engineers. The presented applications are grouped into three major categories: (i) tsunami simulations, considering wave propagation, wave runup, inundation and debris flows; (ii) dam break simulations; and (iii) numerical wave tanks for the calculation of hydrodynamic loads on fixed and moving bodies. This broad range of applications in combination with accurate numerical results and very competitive times to solution demonstrates that modern CFD tools in general, and the elbe code in particular, can be a helpful design tool for civil and environmental engineers.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.