Wall‐cooling effect on linear stability of compressible streamwise corner‐flow. Issue 1 (25th October 2016)

• Record Type: Journal Article
• Authors: Staudenmeyer, Jennifer; Rist, Ulrich
• Is Part Of: Proceedings in applied mathematics and mechanics. Volume 16:Issue 1(2016)
• Page Start: 649
• Page End: 650
• Publication Date: 2016-10-25
• Subjects: Applied mathematics -- Periodicals; Engineering mathematics -- Periodicals; Mathematical physics -- Periodicals; 519
• DOI: 10.1002/pamm.201610313
• Languages: English
• ISSNs: 1617-7061

Abstract

Abstract: The influence of constant wall temperatures on the compressible flow along a right‐angled corner and its stability behaviour is investigated by temporal local linear stability analysis. Wall‐cooling up to 90 % of the adiabatic wall‐temperature for a subsonic flow ( Ma = 0.95) is considered. The maximum cross‐flow velocity along the corner bi‐sector for the base flow with adiabatic wall boundary condition is higher than for the base flow with constant adabatic wall‐temperature. For increasing wall temperature, the amplification rate of the viscous modes decreases to a lesser extent than that of the corner mode, therefore the critical Reynolds‐number is further on defined by the first viscous mode. The spatial behaviour is displayed using N‐factors computed from Gaster‐transformed modes. (© 2016 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)