Effect of orifice spacing on twin circular parallel compressible jets

Autor:	K. B. V. Satya Prakash, Ethirajan Rathakrishnan, P. Lovaraju
Rok vydání:	2021
Předmět:	Physics 020303 mechanical engineering & transports 0203 mechanical engineering 0103 physical sciences Compressibility Aerospace Engineering 02 engineering and technology Mechanics 01 natural sciences Body orifice 010305 fluids & plasmas
Zdroj:	International Journal of Turbo & Jet-Engines. 38:223-232
ISSN:	2191-0332 0334-0082
Popis:	The interaction of Mach 0.5, 0.8, and 1.0, parallel, twin circular jets issuing from orifices with center-to-center spacing S/D, where S is the center-to-center distance and D is orifice diameter, 2, 4 and 6 has been investigated experimentally. The characteristics of twinjets are analyzed based on the centerline Mach number decay, exit Mach number and ratio of orifice spacing. As the spacing between the orifice increases, the maximum Mach number point of the combined jet moves downstream. For the Mach numbers studied it is found that as the S/D increases the effect of the counter-rotating vortices on jet mixing decreases. The rate of the twinjet interaction also decreases with S/D increase. As the jets propagate downstream their center-to-center distance decreases continuously and the jets merge to become single jet, for all S/D studied.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9458d1df54d3d8e03b9db884b9f552cc https://doi.org/10.1515/tjj-2021-0005 Zobrazit plný text záznamu