Hostname: page-component-76fb5796d-zzh7m Total loading time: 0 Render date: 2024-04-27T04:06:16.110Z Has data issue: false hasContentIssue false
  • English
  • Français

Utilising CFD in the investigation of high-speed unsteady spiked body flows

Published online by Cambridge University Press:  04 July 2016

D. Feszty ,
K. J. Badcock  and
B. E. Richards
D. Feszty
Affiliation:
Department of Aerospace Engineering, University of Glasgow, UK
K. J. Badcock
Affiliation:
Department of Aerospace Engineering, University of Glasgow, UK
B. E. Richards
Affiliation:
Department of Aerospace Engineering, University of Glasgow, UK
Get access Rights & Permissions [Opens in a new window]

Abstract

Unsteady spiked body flows were simulated by a second order time-accurate CFD method. Laminar, axisymmetric flow was considered at Mach 2.21 and Mach 6 freestreams and Reynolds’ numbers based on the blunt body diameter of 0.12 million and 0.13 million, respectively. A spiked forward facing cylinder with spike lengths between LID = 1.00 and LID = 2.40 was used as the model geometry. Following the numerical method’s verification, the individual flow modes of oscillation and pulsation were examined. The frequency of the events was found in good agreement with the experiment, while the pressure amplitudes were overpredicted in the Mach 6 cases. Analysis of the numerical results showed that the oscillation flow mode was driven by a viscous mechanism, whereas the pulsation by an inviscid one. The hysteresis phenomenon in the transition between the two flow modes was predicted qualitatively.

Type
Research Article
Information
The Aeronautical Journal , Volume 106 , Issue 1058 , April 2002 , pp. 161 - 174
Copyright
Copyright © Royal Aeronautical Society 2002 

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

1. Oswatitsch, K. Der Druckrückgewinn bei Geschossen mit Rückstossantrieb bei hohen Überschallgeschwindigkeiten, 1944, Bericht Nr 1005, Forch & Entwickl, Heereswaffenamtes (Göttingen), also NACA TM 1140.Google Scholar
2. Eggers, A.J., Dennis, D.H. and Resnikoff, M. M. Bodies of revolution for minimum drag at high supersonic airspeeds, 1958, NACA TR 1281.Google Scholar
3. Chapman, D.R. A theoretical analysis of heat transfer in regions of separated flow, 1956, NACA TN 3792.Google Scholar
4. Hunt, G.K. Supersonic wind tunnel study of reducing the drag of a bluff body at incidence by means of a spike. May 1958, RAE Report Aero 2606.Google Scholar
5. M.J., Abbett, Cooper, L., Dahm, T.J. and Jackson, M.D. Flow characteristics about concave conic forebodies at high Mach numbers. 1975, AIAA Paper 75-153.Google Scholar
6. Kenworthy, M.A. and Richards, B.E. A study of the unsteady flow over concave conic models at Mach 15 and 20, AFML TR 138, 1976.Google Scholar
7. Roberts, B.G. An experimental study of the drag of rigid models representing two parachute designs at M = 1.40 and 2.19, 1960, RAE TN Aero 2734.Google Scholar
8. Maynard, J.D. Aerodynamic characteristics of parachutes at Mach 1.6 to 3.0, 1961, NASA TN D 752.Google Scholar
9. Yoshikawa, K.K. Transient phenomena of shock-induced turbulent separation for a spikebody and stalling airfoil at transonic and super sonic speeds, 1982, AIAA Paper 82-1362.Google Scholar
10. Kabelitz, H.P. Zur Stabilität geschlossener Greznschichtablösegebeite an konischen Drehkörpern bei Hyperschallströmung, 1971, DLR FB: 71–77.Google Scholar
11. Robinson, M.L., Roberts, B.G. and Sayer, A.M. An examination of the flow instability associated with spiked bluff body configurations, 1964. WRE HSA TN 101.Google Scholar
12. Kenworthy, M.A. A study of Unstable Axisymmetric Separation in High Speed Flows, 1978, PhD Thesis, Virginia Polytechnic Institute and State University, USA.Google Scholar
13. Calarese, W. and Hankey, W.L. Modes of shock-wave oscillations on spike-tipped bodies, AIAA J, 1982, 23, pp 185–192.Google Scholar
14. Wood, C.J. Hypersonic flow over spiked cones, J Fluid Mech, 1961, 12,(4), pp 612–624.Google Scholar
15. Maull, D.J. Hypersonic flow over axially symmetric spiked bodies, J Fluid Mech, 1960, 8, pp 584–592.Google Scholar
16. Panaras, A.G. Pulsating flows about axisymmetric concave bodies, AIAA J, 1981, 19, pp 804–806.Google Scholar
17. Antonov, A.N., Gretsov, V.K. and Shalaev, S.P. Unsteady super sonic flow past a body with a spike mounted in front, Akademia Nauk SSSR, Izvestija, Mekhanika Zhidkosti i Gaza, Sep-Oct 1976, pp 118–124.Google Scholar
18. Demetriades, A. and Hopkins, A.T. Asymmetric shock-wave oscillations on spiked bodies of revolution, J Spacecraft and Rockets, 1978, 13,(11), pp 703–704.Google Scholar
19. Mikhail, A.G. Spike-nosed projectiles with vortex rings: steady and nonsteady simulations, J Spacecraft and Rockets, 1996, 33, (1), pp 8–14.Google Scholar
20. Yamauchi, M., Fujii, K. and Higashino, F. Numerical investigation of supersonic flows around spiked blunt body, J Spacecraft and Rockets. 1995, 32, (I), pp 32–42.Google Scholar
21. Shang, J.S. and Hankey, W.L. Flow oscillations of spike-tipped bodies, AIAA J, 1982, 20, pp 25–26.Google Scholar
22. Ingram, C.L., McRae, D.S. and Benson, R.A. Time-accurate simulation of a self-excited oscillatory supersonic external flow with a multi-block solution adaptive mesh algorithm, 1993, AIAA Paper 93–3387-CP.Google Scholar
23. Badcock, K.J., Richards, B.E. and Woodgate, M.A. Elements of computational fluid dynamics on block structured grids using implicit solvers, Progress in Aerospace Sciences, 2000, 36, pp 351–392.Google Scholar
24. Gnoffo, P.A. Point-implicit relaxation strategies for viscous, hyper sonic flows. Computational Methods in Hypersonic Aerodynamics, 1993, Murthy, T.K.S. (Ed), Kluwer Academic Publishers, pp 115–151 Google Scholar
25. Badcock, K.J., Cantariti, F., Hawkins, I., Woodgate, M., Dubuc, L. and Richards, B.E. Simulation of unsteady turbulent flows around moving airfoils using the pseudo time method, Int J Numerical Methods in Fluids, 2000, 32, pp 585–604.Google Scholar
26. Badcock, K., Woodgate, M., Cantariti, F. and Richards, B. Solution of the unsteady Euler equations in three dimensions using a fully unfactored method, Jan 2000, AIAA Paper 2000–0919.Google Scholar
27. Kenworthy, M.A. Private communications with the author, 1999.Google Scholar
28. Holden, M.S. Experimental Studies of separated flows at hypersonic speeds. Part I - Separated flows over axisymmetric spiked bodies, AIAA J, 1966, 4, (4), pp 591–599.Google Scholar
29. Feszty, D., Richards, B.E., Badcock, K.J. and Woodgate, M. Numerical simulation of a pulsating flow arising over an axisymmetric spiked blunt body at Mach 2–21 and Mach 6, Shock Waves, 2000, 10, (5), pp 323–331.Google Scholar
30. Edney, B.A. Effects of shock impingement on the heat transfer around blunt bodies, AIAA J, 1968, 6, (1), pp 15–21.Google Scholar