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On the determination of the position of laminar-turbulent transition in boundary layer by optical methods

On the determination of the position of laminar-turbulent transition in boundary layer by optical... Abstract As a rule, aerodynamic studies at hypersonic flow velocities are carried out in short-duration wind-tunnel facilities. For such facilities, optical diagnostic methods are most preferable. In the present study, we give for the first time a comparison of two methods for determining the end of laminar-turbulent transition: from the distribution of heat fluxes and from schlieren visualization data for the boundary-layer flow. Parametric data on the position of the transition are obtained. These data can be used in the future as reference ones while calibrating semi-empirical calculation models for the transition. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

On the determination of the position of laminar-turbulent transition in boundary layer by optical methods

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Publisher
Springer Journals
Copyright
2015 Pleiades Publishing, Ltd.
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/S0869864315060128
Publisher site
See Article on Publisher Site

Abstract

Abstract As a rule, aerodynamic studies at hypersonic flow velocities are carried out in short-duration wind-tunnel facilities. For such facilities, optical diagnostic methods are most preferable. In the present study, we give for the first time a comparison of two methods for determining the end of laminar-turbulent transition: from the distribution of heat fluxes and from schlieren visualization data for the boundary-layer flow. Parametric data on the position of the transition are obtained. These data can be used in the future as reference ones while calibrating semi-empirical calculation models for the transition.

Journal

Thermophysics and Aeromechanics – Springer Journals

Published: Nov 1, 2015

References

  • Experimental observation of transition of the hypersonic boundary layer
    E.J. Softley, B.C. Graber, R.E. Zempel
  • Effect of the cone nose bluntness and the ultrasonically absorptive coating on the transition in hypersonic boundary layer
    D.A. Bountin, S.V. Lukashevich, A.A. Maslov, A.N. Shiplyuk
  • An experimental study of the natural noise in the Transit-M hypersonic wind tunnel
    Yu.V. Gromyko, P.A. Polivanov, A.A. Sidorenko, D.A. Bountin, A.A. Maslov