Linear interaction approximation for shock/disturbance interaction in a Noble–Abel stiffened gas - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Shock Waves Année : 2023

Linear interaction approximation for shock/disturbance interaction in a Noble–Abel stiffened gas

Résumé

When departure from the ideal gas equation of state is considered, the Noble-Abel stiffened gas model is an appealing and versatile candidate due to its simple form. The Linear Interaction Approximation formalism is extended to consider non-ideal gas effects introduced by this equation of state. Kovásznay decomposition and adequate definition of the energy of disturbances are provided in the context of this equation of state. Changes with respect to ideal gas are investigated on transfer functions, critical angle and compression factor. Those differences yield concrete effects on the damping and transfer of fluctuations across shock waves. Those changes are further illustrated by considering the interaction of an entropy spot with a Mach 3 stationary shock wave.
Fichier principal
Vignette du fichier
LIA_NASG.pdf (1.15 Mo) Télécharger le fichier

Dates et versions

hal-04097657 , version 1 (15-05-2023)

Identifiants

Citer

G. Farag, P. Boivin, P. Sagaut. Linear interaction approximation for shock/disturbance interaction in a Noble–Abel stiffened gas. Shock Waves, 2023, ⟨10.1007/s00193-023-01131-8⟩. ⟨hal-04097657⟩
41 Consultations
18 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More