Direct numerical simulation of flow past a sphere at a reynolds number between 500 and 1000 in compressible flows

研究成果: Conference contribution

7 被引用数 (Scopus)

抄録

In this study, flow over an isolated sphere for a Reynolds number (Re) between 500 and 1000 and a Mach number (M) between 0.8 and 2.0 is investigated via direct numerical simulation (DNS) of three-dimensional compressible Navier–Stokes equations. We focused on the Mach and Reynolds numbers effect on the flow geometry, the flow regime, and the drag coefficient. The results show the following characteristics: 1) for previous studies, the flow field is axisymmetric for Re ≤ 300 and 1.2 ≤ M, but asymmetry and unsteadiness appears at Re = 750 and 1000, respectively, 2) the drag coefficient by DNS indicate different trends to the previous drag models.

本文言語English
ホスト出版物のタイトルAIAA Aerospace Sciences Meeting
出版社American Institute of Aeronautics and Astronautics Inc, AIAA
210059
ISBN(印刷版)9781624105241
DOI
出版ステータスPublished - 2018
イベントAIAA Aerospace Sciences Meeting, 2018 - Kissimmee, United States
継続期間: 2018 1月 82018 1月 12

出版物シリーズ

名前AIAA Aerospace Sciences Meeting, 2018
番号210059
0

Other

OtherAIAA Aerospace Sciences Meeting, 2018
国/地域United States
CityKissimmee
Period18/1/818/1/12

ASJC Scopus subject areas

  • 航空宇宙工学

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