Parametric Study on the Mixing Enhancement of Parallel Supersonic-subsonic Wakes Using Wall Cavities

Autor:	Se-Myong Chang, Chongam Kim, Seong-Mok Moon
Rok vydání:	2008
Předmět:	Physics Numerical Analysis Turbulence K-epsilon turbulence model Acoustics Reynolds stress equation model Pitot tube Mechanics Reynolds stress Condensed Matter Physics law.invention Physics::Fluid Dynamics law Supersonic speed Shear flow Mixing (physics)
Zdroj:	Numerical Heat Transfer, Part A: Applications. 54:367-389
ISSN:	1521-0634 1040-7782
DOI:	10.1080/10407780802164629
Popis:	A series of computational studies on the enhancement of parallel supersonic-subsonic mixing wakes, where M 1 = 1.78 and M 2 = 0.30 at baseline, is conducted and compared with available experimental data. The mixing problem of this parallel flow is characterized by the interaction of “complex” turbulent shear flow with acoustic waves emitted from a wall-mounted cavity. The first aim of the present work is to show a direct comparison between numerical predictions and equivalent experimental data for the baseline case. Hence we make a comparison of eight independent turbulence models, which were selected from the most widely using turbulence models in use in the engineering field, consisting of six eddy–viscosity models and two Reynolds stress models. The Pitot pressure distribution data are in good agreement between computation and experiment, and the results show that Menter's SST model gives the best performance. Further, we investigate the effects of primary parameters such as the length-to-depth (L/D) r...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::33eb53de3f9ae406b3f16123e162b632 https://doi.org/10.1080/10407780802164629 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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