TY - JOUR
T1 - Theoretical investigation of shock stand-off distance for non-equilibrium flows over spheres
AU - Shen, Hua
AU - WEN, Chih-Yung
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This study was co-supported by the Research Grants Council of Hong Kong, China (No. C5010-14E) and the National Natural Science Foundation of China (No. 11372265).
PY - 2018/2/20
Y1 - 2018/2/20
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/627185
UR - http://www.sciencedirect.com/science/article/pii/S1000936118300724
UR - http://www.scopus.com/inward/record.url?scp=85044997688&partnerID=8YFLogxK
U2 - 10.1016/j.cja.2018.02.013
DO - 10.1016/j.cja.2018.02.013
M3 - Article
SN - 1000-9361
VL - 31
SP - 990
EP - 996
JO - Chinese Journal of Aeronautics
JF - Chinese Journal of Aeronautics
IS - 5
ER -