Three-Dimensional Flowfield in the Scaled Payload/Fairing Model of an Expendable Launch Vehicle

Autor:	R. Nallasamy, Paul Schallhorn, L. Duncil, M. Kandula
Rok vydání:	2008
Předmět:	business.industry Internal flow Turbulence Payload Velocimetry Computational fluid dynamics Physics::Classical Physics Vortex Physics::Fluid Dynamics Expendable launch system Aerospace engineering business Scale model Geology
Zdroj:	38th Fluid Dynamics Conference and Exhibit.
Popis:	Three-dimensional computational fluid dynamic (CFD) analysis has been performed to characterize the internal flow in the payload/fairing of an expendable launch vehicle (ELV). The flowfield in the payload/fairing configuration is obtained with the aid of OVERFLOW Navier-Stokes code and a one-equation turbulence model in conjunction with an overset grid system. The computed flow features are compared with the measured LDV (LaserDoppler Velocimetry) data on a 1/5 scale model of the payload/fairing configuration. The counter-rotating vortex structures and saddle point predicted by the CFD analysis are in general agreement with the LDV data. The computed (CFD) velocity profiles on horizontal and vertical lines on the planes of LDV measurement show reasonable agreement with the LDV data only for certain cases.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3578faeb18d1c32dbb6d9ed909ad4c8b https://doi.org/10.2514/6.2008-4302 Zobrazit plný text záznamu