Compressible modes in a square lid-driven cavity
LF Bergamo, EM Gennaro, V Theofilis… - Aerospace Science and …, 2015 - Elsevier
LF Bergamo, EM Gennaro, V Theofilis, MAF Medeiros
Aerospace Science and Technology, 2015•ElsevierThis paper studies the effect of compressibility on the linear stability of a two-dimensional lid-
driven cavity flow in the subsonic regime. The base flow is generated by high fidelity direct
numerical simulation and a biglobal mode instability analysis is carried out by a matrix
forming approach. The eigenvalue problem is discretized by high-order finite differences
and Arnoldi algorithm is used to reduce the size of the problem. The solution procedure uses
sparse matrix techniques. Influence of Mach number on the modes known from …
driven cavity flow in the subsonic regime. The base flow is generated by high fidelity direct
numerical simulation and a biglobal mode instability analysis is carried out by a matrix
forming approach. The eigenvalue problem is discretized by high-order finite differences
and Arnoldi algorithm is used to reduce the size of the problem. The solution procedure uses
sparse matrix techniques. Influence of Mach number on the modes known from …
Abstract
This paper studies the effect of compressibility on the linear stability of a two-dimensional lid-driven cavity flow in the subsonic regime. The base flow is generated by high fidelity direct numerical simulation and a biglobal mode instability analysis is carried out by a matrix forming approach. The eigenvalue problem is discretized by high-order finite differences and Arnoldi algorithm is used to reduce the size of the problem. The solution procedure uses sparse matrix techniques. Influence of Mach number on the modes known from incompressible calculations is presented, showing that compressibility has a stabilizing effect. New modes that appear only for compressible flows are presented and their relationship with duct acoustics is investigated.
Elsevier
以上显示的是最相近的搜索结果。 查看全部搜索结果