Wake flow analysis and the estimation of aerodynamic performance for moving objects by collaboration of computational fluid dynamics and PIV experiments

2015 Fiscal Year Final Research Report

• Project/Area Number: 24560188
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: University of Toyama
• Principal Investigator: Matsushima Kisa 富山大学, 大学院理工学研究部(工学), 教授 (40332514)
• Research Collaborator: FUKUCHI Yuichi ㈱本田技術研究所四輪R&Dセンター ; YONEZAWA Masahito ㈱本田技術研究所四輪R&Dセンター
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 後流 / 空力性能解析 / PIV計測 / 圧力推定計算 / 翼 / 自動車

Outline of Final Research Achievements

The research proposed a practical and accurate method for wake flow measurement which was important to improve the aerodynamic performance of transport planes and vehicles. The method is the combination of stereo-PIV measurement and mathematical equations to be solved using a computer. In general, some instruments are needed to measure flow-field quantities, while the instruments could violate the flow-field, then accuracy could not be guaranteed. The proposed method is nonintrusive and productive, that is an advantage for measurement. Its originality lies in a basic equation called the 2.5-dimensional model to compute pressure quantities as well as large scaled stereo-PIV experiment to obtain velocity vector components. It was shown the proposed method had good ability of providing accurate physical properties such as velocity vectors and pressure when several boundaries were located on the isentropic flow region and the Neumann boundary conditions held for other boundaries.

Free Research Field

数値流体力学