DE-EXCITATION SHOCKS IN A VIBRATIONALLY RELAXING GAS.

Abstract

Some recent work on the existence of vibrational de-excitation shocks (delta-shocks) in expanding non-equilibrium nozzle flows is extended to include situations in which an adiabatic shock (alpha-shock) may be embedded within the de-excitation shock. A discussion of some further properties of the shock solution is given and some examples are worked out. Numerical solutions of the full equations are also presented. These solutions confirm the existence of the alpha-shocks but bring to light certain anomalies in the simple approximate solution. The modifications necessary to remove these discrepancies are outlined, and the implications of the numerical results are briefly discussed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1969
Accession Number
AD0689480

Entities

People

  • D. A. Schofield
  • D. G. Petty
  • J. L. Wilson
  • P. A. Blythe

Organizations

  • Lehigh University

Tags

DTIC Thesaurus Topics

  • Equations
  • Excitation
  • Mathematics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Molecular Photonics/Laser Physics