Premium
Exergetic aspects of high‐speed boundary layers
Author(s) -
Jocksch A.,
Kleiser L.
Publication year - 2006
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200610245
Subject(s) - exergy , turbulence , work (physics) , extension (predicate logic) , mechanics , compressibility , kinetic energy , turbulence kinetic energy , flow (mathematics) , boundary (topology) , thermodynamics , mathematics , environmental science , physics , computer science , classical mechanics , mathematical analysis , programming language
Abstract Exergy is an established concept for evaluating heat cycles. It quantifies the available work that can be extracted from a system. The extension of the classical definition to non‐uniform flow field properties is applied here to high‐speed boundary layers. The destruction of exergy is quantified by the corresponding loss thickness and is evaluated locally. Turbulent fluctuations in this approach are described by their turbulent exergy, which is a generalisation of the concept of turbulent kinetic energy for incompressible flow. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)