Theoretical investigation of shock stand-off distance for non-equilibrium flows over spheres

Hua Shen, Chih-Yung WEN

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We derived a theoretical solution of the shock stand-off distance for a non-equilibrium flow over spheres based on Wen and Hornung’s solution and Olivier’s solution. Compared with previous approaches, the main advantage of the present approach is allowing an analytic solution without involving any semi-empirical parameter for the whole non-equilibrium flow regimes. The effects of some important physical quantities therefore can be fully revealed via the analytic solution. By combining the current solution with Ideal Dissociating Gas (IDG) model, we investigate the effects of free stream kinetic energy and free stream dissociation level (which can be very different between different facilities) on the shock stand-off distance.
Original languageEnglish (US)
Pages (from-to)990-996
Number of pages7
JournalChinese Journal of Aeronautics
Volume31
Issue number5
DOIs
StatePublished - Feb 20 2018

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