Experimental determination of self-similarity constant for converging cylindrical shocks

Malte Kjellander; Nils Tillmark; Nicholas Apazidis

doi:10.1063/1.3662002

journal article Nov 01, 2011

Experimental determination of self-similarity constant for converging cylindrical shocks

Malte Kjellander Nils Tillmark Nicholas Apazidis

Physics of Fluids Vol. 23 No. 11 · AIP Publishing

View at Publisher Save 10.1063/1.3662002

Abstract

Guderley’s self-similarity solution r = r0(1 – t/t0)α for strong converging cylindrical shocks is investigated experimentally for three different gases with adiabatic exponents γ = 1.13; 1.40; and 1.66 and various values of the initial Mach number. Corresponding values of the similarity exponent α which determines the strength of shock convergence are obtained for each gas thus giving the variation of α with γ. Schlieren imaging with multiple exposure technique is used to track the propagation of a single shock front during convergence. The present experimental results are compared with previous experimental, numerical, and theoretical investigations.

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Citations

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References

Details

Published: Nov 01, 2011
Vol/Issue: 23(11)

Authors

M

Malte Kjellander

Royal Institute of Technology Department of Mechanics, , SE-100 44 Stockholm, Sweden

N

Nils Tillmark

Royal Institute of Technology Department of Mechanics, , SE-100 44 Stockholm, Sweden

N

Nicholas Apazidis

Royal Institute of Technology Department of Mechanics, , SE-100 44 Stockholm, Sweden

Cite This Article

Malte Kjellander, Nils Tillmark, Nicholas Apazidis (2011). Experimental determination of self-similarity constant for converging cylindrical shocks. Physics of Fluids, 23(11). https://doi.org/10.1063/1.3662002

Experimental determination of self-similarity constant for converging cylindrical shocks

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