High-Performance Parallel Simulation of Airflow for Complex Terrain Surface

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Abstract

It is important to develop a reliable and high-throughput simulation method for predicting airflows in the installation planning phase of windmill power plants. This study proposes a two-stage mesh generation approach to reduce the meshing cost and introduces a hybrid parallelization scheme for atmospheric fluid simulations. The meshing approach splits mesh generation into two stages: in the first stage, the meshing parameters that uniquely determine the mesh distribution are extracted, and in the second stage, a mesh system is generated in parallel via an in situ approach using the parameters obtained in the initialization phase of the simulation. The proposed two-stage approach is flexible since an arbitrary number of processes can be selected at run time. An efficient OpenMP-MPI hybrid parallelization scheme using a middleware that provides a framework of parallel codes based on the domain decomposition method is also developed. The preliminary results of the meshing and computing performance show excellent scalability in the strong scaling test.

Original languageEnglish
Article number5231839
JournalModelling and Simulation in Engineering
Volume2019
DOIs
Publication statusPublished - 2019

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All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Engineering(all)
  • Computer Science Applications

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