Measuring the velocity of a gas wake in a shock tube from the induced electromotive force

  • R. V. Vasil'eva
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Abstract

It is shown that the velocity of the gas wake in a shock tube can be measured from the induced electromotive force for argon and xenon at initial pressures greater than 1 mm Hg and conductivities above 1 mho/cm. In a strongly ionized gas (α > 0. 01) the flow velocities measured directly behind the shock front are close to the flow velocities corresponding to steady-state ionization equilibrium. It is noted that the expenditure of energy to dissociate an admixture of air causes a noticeable increase in the velocity of the flow along the entire plug of hot gas. A 3–6% acceleration of the flow along the plug. in the equilibrium ionization zone is observed; this is probably caused by the action of the boundary layer formed on the walls of the shock tube on the free flow.

Keywords

Mathematical Modeling Boundary Layer Argon Mechanical Engineer Flow Velocity 

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References

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Copyright information

© The Faraday Press, Inc. 1967

Authors and Affiliations

  • R. V. Vasil'eva
    • 1
  1. 1.Leningrad

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