Mach Wave and Acoustical Wave Structure in Nonequilibrium Gas-Particle Flows - Couverture souple

Liu, Joseph T. C.

Couverture souple

ISBN 10 : 1108964885 ISBN 13 : 9781108964883

Editeur : Cambridge University Press, 2021

Synopsis

In this Element, the gas-particle flow problem is formulated with momentum and thermal slip that introduces two relaxation times. Starting from acoustical propagation in a medium in equilibrium, the relaxation-wave equation in airfoil coordinates is derived though a Galilean transformation for uniform flow. Steady planar small perturbation supersonic flow is studied in detail according to Whitham's higher-order waves. The signals owing to wall boundary conditions are damped along the frozen-Mach wave, and are both damped and diffusive along an effective-intermediate Mach wave and diffusive along the equilibrium Mach wave where the bulk of the disturbance propagates. The surface pressure coefficient is obtained exactly for small-disturbance theory, but it is considerably simplified for the small particle-to-gas mass loading approximation, equivalent to a simple-wave approximation. Other relaxation-wave problems are discussed. Martian dust-storm properties in terms of gas-particle flow parameters are estimated.

Détails de l'édition

• Éditeur: Cambridge University Press
• Date d'édition: 2021
• Langue: anglais
• ISBN 10: 1108964885
• ISBN 13: 9781108964883
• Reliure: Broché
• Nombre de pages: 78
• Coordonnées du fabricant: non disponible
• Personne responsable: Avery; https://www.avery.fr/; ; chemin des peupliers 27; Dardilly; France