Experimental investigation of the differences between Reynolds' averaged and Favre averaged velocity in supersonic jets

Autor:	Richard G. Seasholtz, Jayanta Panda
Rok vydání:	2005
Předmět:	Physics Turbulence Axial velocity Mechanics Physics::Fluid Dynamics symbols.namesake Classical mechanics Mach number Flow velocity Turbulence kinetic energy Range (statistics) symbols Supersonic speed Rayleigh scattering
Zdroj:	43rd AIAA Aerospace Sciences Meeting and Exhibit.
DOI:	10.2514/6.2005-514
Popis:	Recent advancement in the molecular Rayleigh scattering based technique allowed for simultaneous measurement of velocity and density fluctuations with high sampling rates. The technique was used to investigate unheated high subsonic and supersonic fully expanded free jets in the Mach number range of 0.8 to 1.8. The difference between the Favre averaged and Reynolds averaged axial velocity and axial component of the turbulent kinetic energy is found to be small. Estimates based on the Morkovin's "Strong Reynolds Analogy" were found to provide lower values of turbulent density fluctuations than the measured data.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::906dcb24a7428f7dd6d3de837659e00a https://doi.org/10.2514/6.2005-514 Zobrazit plný text záznamu