Cavity Flows in a Scramjet Engine by the Space-Time Conservation and Solution Element Method

Autor:	S.-T. John Yu, Zeng-Chan Zhang, Chang-Kee Kim
Rok vydání:	2004
Předmět:	Engineering business.industry Aerospace Engineering Mechanical engineering Mechanics Fuel injection Compressible flow Finite element method Flow separation Supersonic speed Combustion chamber business Choked flow Ramjet
Zdroj:	AIAA Journal. 42:912-919
ISSN:	1533-385X 0001-1452
DOI:	10.2514/1.9017
Popis:	Numerical simulation of supersonic flows over open cavities in the setting of a dual-mode ramjet/scramjet engine are reported. To calculate the unsteady cavity flows, we employ the space-time conservation element and solution element (CESE) method, a novel numerical method based on a unified treatment of space and time for calculation of flux balance. Supersonic cavity flows with and without fuel injection are studied to understand the mechanisms of mixing enhancement and flame holding by cavities. Without injection, numerical results compared favorably with the experimental data for dominant frequencies and time-averaged pressure coefficients inside the cavities. With an upstream injection, the flow oscillations are drastically suppressed
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7f1d40d5449086df576a70239f1867f7 https://doi.org/10.2514/1.9017 Zobrazit plný text záznamu