High Speed Couette—Poiseuille Flow Stability in Reverse Flow Conditions

Ebrinç, Ali Aslan
Özgen, Serkan
Dursunkaya, Zafer
The linear stability of reverse high speed-viscous plane Couette – Poiseuille flow is investigated numerically. The conservation equations along with Sutherland’s viscosity law are studied using a second order finite difference scheme. Basic velocity and temperature distributions are perturbed by a small amplitude normal-mode disturbance. Small amplitude disturbance equations are solved numerically using a global method to find all the eigenvalues at finite Reynolds numbers. The results indicate that instabilities occur, although the corresponding growth rates are often small. The aim of the study is to see the effect of the reverse flow on the stability compared to the direct flow. In the combined plane Couette – Poiseuille flow, the new mode, Mode 0, which seems to be a member of even modes such as Mode II, is the most unstable mode
Citation Formats
A. A. Ebrinç, S. Özgen, and Z. Dursunkaya, “High Speed Couette—Poiseuille Flow Stability in Reverse Flow Conditions,” presented at the 4th IASME/WSEAS International Conference on Fluid Mechanics and Aerodynamics (21 - 23 Ağustos 2006), Girit, Yunanistan, 2006, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/72658.