Skip to main content
Log in

Abstract

This is in continuation of our paper On the propagation of a multi-dimensional shock of arbitrary strength’ published earlier in this journal (Srinivasan and Prasad [9]). We had shown in our paper that Whitham’s shock dynamics, based on intuitive arguments, cannot be relied on for flows other than those involving weak shocks and that too with uniform flow behind the shock. Whitham [12] refers to this as misinterpretation of his approximation and claims that his theory is not only correct but also provides a natural closure of the open system of the equations of Maslov [3]. The main aim of this note is to refute Whitham’s claim with the help of an example and a numerical integration of a problem in gasdynamics.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Hayes W D, Self-similar strong shocks in an exponential medium,J. Fluid Mech. 32 (1968) 305–315

    Article  Google Scholar 

  2. Grinfel’d M A, Ray method for calculating the wavefront intensity in nonlinear elastic material,PMM J. Appl. Math. Mech. 42 (1978) 958–977

    Article  MATH  MathSciNet  Google Scholar 

  3. Maslov V P, Propagation of shock waves in an isentropic non-viscous gas,J. Sov. Math. 13 (1980) 119–163

    Article  Google Scholar 

  4. Prasad P, Extension of Huyghen’s construction of a wavefront to a nonlinear wavefront and a shockfront,Curr. Sci. 56 (1987) 50–54

    Google Scholar 

  5. Prasad P, Ravindran R and Sau A, On the characteristic rule for shocks,Appl. Math. Lett., (To appear)

  6. Prasad P and Srinivasan R, On methods of calculating successive positions of a shock front,Acta Mech. 74 (1988) 81–93

    Article  MATH  MathSciNet  Google Scholar 

  7. Ramanathan T M, Huyghen’s method of construction of weakly nonlinear wavefronts and shockfronts with application to hyperbolic caustic, Ph.D. Thesis, Indian Institute of Science, Bangalore, 1985

    Google Scholar 

  8. Ravindran R and Prasad P, Kinematics of a shockfront and resolution of a hyperbolic caustic, inAdvances in nonlinear waves (Ed) L Debnath, 1985, Pitman Research Notes in Mathematics, Vol II No. 111

  9. Srinivasan R and Prasad P, On the propagation of a multidimensional shock of arbitrary strength,Proc. Indian Acad. Sci. (Math. Sci.) 94 (1985) 27–42

    MATH  MathSciNet  Google Scholar 

  10. Srinivasan R and Prasad P, Corrections to some expressions in “On the propagation of a multidimensional shock of arbitrary strength”,Proc. Indian Acad. Sci. (Math. Sci.) 100 (1990) 93–94

    MATH  MathSciNet  Google Scholar 

  11. Whitham G B,Linear and Nonlinear Waves, (New York: John Wiley and Sons) 1974

    MATH  Google Scholar 

  12. Whitham G B, On shock dynamics,Proc. Indian Acad. Sci. (Math. Sci.) 96 (1987) 71–73

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Prasad, P. On shock dynamics. Proc. Indian Acad. Sci. (Math. Sci.) 100, 87–92 (1990). https://doi.org/10.1007/BF02881118

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02881118

Keywords

Navigation