Parametric Study of Unsteady Flows Near Blunted Cylinders, Giving Off Opposite Jets

Authors(1) :-V. I. Pinchukov

Interactions of uniform supersonic streams with blunted cylinders, giving off opposite supersonic jets from forehead surfaces, are studied. Two-dimensional Euler equations are solved by an implicit Runge-Kutta scheme. Unsteady compressible flows near blunted bodies, giving off supersonic opposite jets, are found in previous author investigations for free stream Mach numbers 1≤ M ≤1.3. This interval of free stream Mach numbers, for which unsteady flows exist, is extended to 1≤ M ≤1.7 here.  <

Authors and Affiliations

V. I. Pinchukov
SD of Russian Academy of Sc., In-te of Computational Technologies, Novosibirsk, Russia

Euler Equations, Runge-Kutta Scheme, Self-Oscillatory Flows

  1. J Hartmann, On a new method for the generation of sound waves, Phys. Rev., 20(6), 1922, 719-726.
  2. S. Murugappan, E. Gutmark, Parametric Study the Hartmann-Sprenger tube, Experiments in Fluids, 38(6), 2005, 813-823.
  3. J. Kastner, M. Samimy, Development and characteri-zation of Hartmann tube fluid actuators for high-speed control, American Institute of Aeronautics and Astronautics J., 40(10), 2002, 1926-1934.
  4. G Raman, E. Envia, T. J. Bencic, Jet cavity interac tion tones, American Institute of Aeronautics and Astronautics J., 40 (8), 2002, 1503-1511.
  5. W Wu, U. Piomelli, Large-eddy simulation of impinging jets with embedded azimuthal vortices. J. of Turbulence, 16(10), 2014, 44-66.
  6. C-Y. Kuo, A. P. Dowling, Oscillations of a moderately underexpanded choked jet impinging upon a flat plate. J. Fluid Mech., 315, 1996, 267-291.
  7. Y Sakakibara, J. Iwamoto, Numerical study of oscillation mechanism in underexpanded jet impinging on plate, J. Fluids Eng., 120, 1998, 477.
  8. B Henderson, J. Bridges, M. Wernet. An Experimental study of the oscillatory flow structure of tone-producing supersonic impinging jets, J. Fluid Mech., Vol. 542, 2005, 115-137.
  9. J Berland, C. Bogey, C. Bailly. Numerical study of screech generation in a planar supersonic jet, Phys. Fluids, 19, 2007, 75-105.
  10. D. J. Bodony, S. K. Lele. On using large-eddy simulation for the prediction of noise from cold and heated turbulent jets, Phys. Fluids , 17, 2005.
  11. C. Bogey, C. Bailly, Computation of a high Reynolds number jet and its radiated noise using large eddy simulation based on explicit filtering, Comput. Fluids, 35, 2006, 1344-1358.
  12. T. Cheng, K. Lee. Numerical simulations of underexpanded supersonic jet and free shear layer using WENO schemes, Int. J. Heat Fluid Flow, 26(5), 2005, 755-770.
  13. V. I. Pinchukov, Numerical modeling of unsteady flows with transient regimes, Comput. Mathem. and Mathem.Physics, 49 (10), 2009, 1844-1852.
  14. V. I. Pinchukov, Modeling of self-oscillations and a search for new self-oscillatory flows, Mathematical Models and Computer Simulations, 4(2), 2012, 170-178.
  15. V. I. Pinchukov Numerical simulations of self-oscillatory flows near blunted bodies, giving off opposite jets, Intern. J. of Mechanical Engineering and Applications 2(1), 2014, 5-10.
  16. V. I. Pinchukov, Self-oscillatory flows near blunted bodies, giving off opposite jets: CFD study, Intern. J. of Engineering and Innovative Technology, 6(5), 2016, 41-46.
  17. V. I. Pinchukov, Numerical Solution of the Equations of Viscous Gas by an Implicit Third Order Runge-Kutta Scheme, Comput. Mathem. and Mathem. Physics, 42(6), 2002, 898-907.
  18. J. Smagorinsky, General circulation experiments with the primitive equations. I. The basic experiment, Monthly Weather Review, 91, 1963, 99-164.

Publication Details

Published in : Volume 4 | Issue 10 | September-October 2018
Date of Publication : 2018-10-30
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 355-359
Manuscript Number : IJSRSET1841083
Publisher : Technoscience Academy

Print ISSN : 2395-1990, Online ISSN : 2394-4099

Cite This Article :

V. I. Pinchukov, " Parametric Study of Unsteady Flows Near Blunted Cylinders, Giving Off Opposite Jets, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 4, Issue 10, pp.355-359, September-October-2018. Available at doi :
Journal URL :

Article Preview