Hostname: page-component-7479d7b7d-t6hkb Total loading time: 0 Render date: 2024-07-12T00:52:25.108Z Has data issue: false hasContentIssue false
  • English
  • Français

Hypersonic flow past non-slender wedges, cones and ogives in oscillation

Published online by Cambridge University Press:  04 July 2016

Kunal Ghosh ,
M. Vempati  and
D. Das
Kunal Ghosh
Affiliation:
Department of Aeronautical Engineering, Indian Institute of Technology, Kanpur, India
M. Vempati
Affiliation:
Department of Aeronautical Engineering, Indian Institute of Technology, Kanpur, India
D. Das
Affiliation:
Department of Aeronautical Engineering, Indian Institute of Technology, Kanpur, India
Get access Rights & Permissions [Opens in a new window]

Summary

Ghosh’s large-deflection hypersonic similitude and consequent plane and conico-annular piston theories have been applied to obtain unsteady pressure and the pitching moment derivatives for oscillating non-slender wedges, cones and ogives. The plane piston theory for a wedge is extended from a quasi-steady analysis, which gives the moment derivative due to pitch rate Cmq, to an unsteady analysis; the two analyses combine to give the moment derivative due to incidence rate , which is shown here to be the same for wedges and quasi-wedges. The present theory can separately give Cmq and for a quasiwedge of arbitrary shape; this principle is illustrated for a particular quasi-wedge namely the parabolic arc plane ogive. In comparison, a previous theory by Hui gave only the sum of Cmq and , only for wedges. The conico-annular piston theory is employed to obtain Cmθ, which is the moment derivative due to a steady pitch angle, and Cmq for non-slender cones and axisymmetric ogives in closed form for the first time.

Type
Research Article
Information
The Aeronautical Journal , Volume 89 , Issue 887 , September 1985 , pp. 247 - 256
Copyright
Copyright © Royal Aeronautical Society 1985 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Appleton, J. P. Aerodynamic pitching derivatives of a wedge in hypersonic flow, AIAA Journal November 1964,2,11,2034–2036.Google Scholar
Brong, E. A. The flow field about a right circular cone in unsteady flight, AIAA Paper 65-398.1965.Google Scholar
Erisson, L. E. Unsteady embedded Newtonian flow, Astronautica Acta, 1973, 18,5,309–30.Google Scholar
Etkin, E. Dynamics of Atmospheric Flight, Wiley, New York, 1972.Google Scholar
Ghosh, K. (1977) A new similitude for aerofoils in hypersonic flow, Proceedings of the 6th Canadian Congress of Appl Mech, Vancouver, Canada, 29th May-3rd June 1977,685–686.Google Scholar
Ghosh, K. & Mistry, B. K. (1980). Large incidence hypersonic similitude and oscillating non-planar wedges, AIAA Journal, August 1980,18, 8, August, 1004–1006.Google Scholar
Ghosh, Kunal, Hypersonic large-deflection similitude for quasi-wedges and quasi-cones, The Aeronautical Journal, March 1984–1, 70–76. (See ‘Correction’, The Aeronautical Journal, August/ September 1984,328).Google Scholar
Ghosh, Kunal. Hypersonic large-deflection similitude for oscillating delta wings, The Aeronautical Journal, October 1984–2,357–361.Google Scholar
Hui, W. H. Stability of oscillating wedges and caret wings in hypersonic and supersonic flows, AIAA Journal, 7, August 1969–1, 1524–1530.Google Scholar
Hui, W. H. Interaction of a strong shock with Mach waves in unsteady flow, AIAA Journal, Technical Note, August 1969–2,1605–1607.Google Scholar
Hui, W. H. and Tobak, M. 1. Unsteady Newton-Busemann flow theory—Part 1: Airfoils AIAA Journal, March 1981,19,3,311–318.Google Scholar
Hui, W. H. and Tobak, M. 2. Unsteady Newton-Busemann flow theory — Part II: Bodies of revolution, AIAA Journal, October 1981,19,1272–1273.Google Scholar
Levin, D. A Vortex lattice method for calculating longitudinal dynamic stability derivatives of oscillating delta wings, AIAA Journal, January 1984,22,1,6–12.Google Scholar
Lighthill, M. J. Oscillating airfoil at high Mach numbers, Journal of Aeronautical Sciences, June 1953,20,402–406.Google Scholar
Miles, J. W. Unsteady flow at hypersonic speeds, Hypersonic flow, Butterworths Scientific Publications, London, 1960,185–197.Google Scholar
Orlik-Rückemann, K. J. Effect of wave reflections on the unsteady hypersonic flow over a wedge, AIAA Journal, Ocotober 1966, 4, 1884–1886.Google Scholar
Orlik-Rückemann, K. J. Oscillating slender cone in viscous hypersonic flow, AIAA Journal, September 1972,10,9,1139–1140.Google Scholar
Orlik-Rückemann, K. J. Dynamic stability testing of aircraft-needs versus capabilities, Progress in the Aerospace Sciences, 16, 431–447, Academic Press, New York. 1975.Google Scholar