Shock wave driven by a phased implosion

R. Menikoff, Klaus Lackner, N. L. Johnson, S. A. Colgate, J. M. Hyman, G. A. Miranda

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In this paper the theory of an axially phased radial implosion of a channel is developed. When the phase velocity of the implosion exceeds the sound velocity inside the channel, a planar shock wave traveling along the channel axis can develop. For the energy of the implosion system in the appropriate range, the theory predicts a stable steady-state flow configuration. The effect of the phased implosion is for the channel wall to form a nozzle that travels along the channel axis. The flow behind the axial shock is well described by the equations for nozzle flow with an additional dynamical degree of freedom for the shape of the wall. Experiments presented here verify the theoretical predictions. The numerical simulations show the formation of the axial shock during start-up and the approach to steady state to be in good agreement with experiment and theory. A potential application of the axially phased implosion is the design of a super shock tube.

Original languageEnglish (US)
Pages (from-to)201-218
Number of pages18
JournalPhysics of Fluids A
Volume3
Issue number1
StatePublished - 1991
Externally publishedYes

Fingerprint

implosions
Shock waves
shock waves
Nozzles
Shock tubes
Phase velocity
Acoustic wave velocity
Experiments
shock
Computer simulation
nozzle flow
equilibrium flow
shock tubes
acoustic velocity
phase velocity
travel
nozzles
degrees of freedom
configurations
predictions

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Mechanics of Materials
  • Computational Mechanics
  • Fluid Flow and Transfer Processes

Cite this

Menikoff, R., Lackner, K., Johnson, N. L., Colgate, S. A., Hyman, J. M., & Miranda, G. A. (1991). Shock wave driven by a phased implosion. Physics of Fluids A, 3(1), 201-218.

Shock wave driven by a phased implosion. / Menikoff, R.; Lackner, Klaus; Johnson, N. L.; Colgate, S. A.; Hyman, J. M.; Miranda, G. A.

In: Physics of Fluids A, Vol. 3, No. 1, 1991, p. 201-218.

Research output: Contribution to journalArticle

Menikoff, R, Lackner, K, Johnson, NL, Colgate, SA, Hyman, JM & Miranda, GA 1991, 'Shock wave driven by a phased implosion', Physics of Fluids A, vol. 3, no. 1, pp. 201-218.
Menikoff R, Lackner K, Johnson NL, Colgate SA, Hyman JM, Miranda GA. Shock wave driven by a phased implosion. Physics of Fluids A. 1991;3(1):201-218.
Menikoff, R. ; Lackner, Klaus ; Johnson, N. L. ; Colgate, S. A. ; Hyman, J. M. ; Miranda, G. A. / Shock wave driven by a phased implosion. In: Physics of Fluids A. 1991 ; Vol. 3, No. 1. pp. 201-218.
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