Initial flow model in shock tubes
Abstract
A model is developed to account for perturbed flow patterns generated by the incident shock wave in a shock tube, particularly those brought about by the rupture of the shock tube diaphragm in the first instants. Boundarylayer effects and the actual formation phase are left out of account. The numerical computations are applied to the acceleration phase. The rupture (tube opening) process is assumed known and determined solely by initial conditions. The flowfield is computed using constant temporal steps, with perfect gases (driver gas and shocked gas) assumed, and compression waves at the ruptured diaphragm taken into account. Some possible improvements in the model are considered.
 Publication:

AIAA Journal
 Pub Date:
 September 1977
 DOI:
 10.2514/3.7423
 Bibcode:
 1977AIAAJ..15.1344B
 Keywords:

 Boundary Value Problems;
 Flow Distribution;
 Mathematical Models;
 Perturbation Theory;
 Shock Tubes;
 Shock Wave Propagation;
 Boundary Layer Flow;
 Flow Theory;
 Ideal Gas;
 Pressure Chambers;
 Temperature Profiles;
 Fluid Mechanics and Heat Transfer