A Similarity Criterion for Supersonic Flow Past a Cylinder with a Frontal High-Porosity Cellular Insert

S. G. Mironov, T. V. Poplavskaya, S. V. Kirilovskiy, A. A. Maslov

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We have experimentally and numerically studied the influence of the ratio of the diameter of a cylinder with a frontal gas-permeable porous insert made of nickel sponge to the average pore diameter in the insert on the aerodynamic drag of this model body in supersonic airflow (M = 4.85, 7, and 21). The analytical dependence of the normalized drag coefficient on a parameter involving the Mach number and the ratio of cylinder radius to average pore radius in the insert is obtained. It is suggested to use this parameter as a similarity criterion in the problem of supersonic airflow past a cylinder with a frontal high-porosity cellular insert.

Original languageEnglish
Pages (from-to)225-228
Number of pages4
JournalTechnical Physics Letters
Volume44
Issue number3
DOIs
Publication statusPublished - 1 Mar 2018

Keywords

  • POROUS-INSERT
  • DRAG

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