Helicity instability effects of supersonic Batchelor vortices

 

Authors:Toshihiko Hiejima

Affiliation:Department of Aerospace Engineering, Osaka Prefecture University

Abstract:超音速流では変動の成長が圧縮性効果によって抑制されるが,線形安定性理論を用いてヘリシティ分布による不安定効果を見出した。その効果を非線形発達も含めた高次精度3次元数値計算でも確認した。

 

Publication related to your research
(Journal paper)

  • T. Hiejima,“Development of specific structures occurring from hyper-breakable vorticity,”Physics of Fluids, 31 [7], 071701 (5 pages), (2019).
  • T. Hiejima,“Compressibility effects of supersonic Batchelor vortices,”Physical Review Fluids, 4 [9], 093903, (26 pages), (2019).
  • T. Hiejima and T. Oda,“Shockwave effects on supersonic combustion using hypermixer struts,”Physics of Fluids, 32 [1], 016104 (18 pages), (2020).
  • T. Hiejima,“On the rapid breakdown of supersonic streamwise vortices with opposite sign double annular vorticity,”Acta Astronautica, 168 [3], 220-229 (10 pages), (2020).
  • T. Hiejima,“Development of linear unstable modes in supersonic streamwise vortices using a weighted compact nonlinear scheme,”Computers and Fluids, 201 [4], 104416 (10 pages), (2020).

 

(Domestic conference/workshop)

  • 平井単宇,比江島俊彦,新井隆景,“鋭いノーズ形状を持つ極超音速飛翔体の先端に発生する熱流束の予測”,第56回日本航空宇宙学会関西・中部支部合同秋期大会講演論文集, B02, pp. 1-2 (2019).
  • 西村海斗,比江島俊彦,“SRストラットの燃料噴射角度が超音速燃焼に与える効果”,第33回数値流体力学シンポジウム講演論文集,D10-1, pp. 1-2 (2019).

 




Posted : March 31,2020