A FINITE-VOLUME HYDRODYNAMIC SIMULATOR BASED ON CENTROIDAL VORONOI THESSELLATION

• SHINTANI Tetsuya

  首都大学東京 都市基盤環境コース

Bibliographic Information

Other Title

• 重心ボロノイ図に基づく３次元数値流動シミュレーターの設計と検証

Abstract

 A finite-volume hydrodynamic simulator based on centroidal Voronoi tessellation (CVT) is proposed to realize smoothly varying local mesh refinement. The fundamental properties and generation techniques of CVT, weighted CVT and boundary-fitted CVT are explained with a suitable scalar advection scheme. Hybrid parallelization of the shared and distributed memory models has been implemented to achieve efficient long-term high resolution predictions. The simulator has been applied to the brackish lake Abashiri and the salinity fluctuations in the halocline were compared with the measured data. The measured salinity fluctuations due to the internal Kelvin wave are well simulated both in phase and magnitude.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 74 (4), I_349-I_354, 2018

  Japan Society of Civil Engineers

Keywords

• Centroidal Voronoi tessellation
• hydrodynamic simulator
• hybrid parallelization
• object-oriented design

Details

• CRID: 1390845713072583936
• NII Article ID: 130007628244
• DOI: 10.2208/jscejhe.74.i_349
• ISSN: 2185467X
• Web Site: https://www.jstage.jst.go.jp/article/jscejhe/74/4/74_I_349/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed