Accession Number : AD1026134


Title :   Simulation of Flow for an Immersed Sphere


Descriptive Note : Technical Report,31 Mar 2016,31 Jul 2016


Corporate Author : AIR FORCE RESEARCH LAB EGLIN AFB FL EGLIN AFB United States


Personal Author(s) : Lopez-Fernandez,Pedro A ; Tatum,Ralph K ; Nance,Douglas V


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1026134.pdf


Report Date : 01 Dec 2016


Pagination or Media Count : 41


Abstract : This report addresses a series of simulations of turbulent, multi-species flow fields surrounding a sphere. The purpose of these simulations is to validate our capability for using the Large Eddy Simulation with LInear Eddy Modeling in 3 Dimensions (LESLIE3D) multiphase physics computer program. A high Reynolds number flow field is computed at Mach 2.0, and a low Reynolds number flow field is calculated at Mach 0.1. The former flow field is strongly shocked while the latter flow field is shock wave free. In each test calculation, the physics of the flow field is examined, and the drag coefficients are calculated viapost-processing for comparison with data. At the same time, drag post-processor algorithms are validated.


Descriptors :   computational fluid dynamics , boundary layer , TURBULENT FLOW , differential equations , viscous flow , acoustic waves , mathematical models , navier stokes equations , reynolds number , chemical reactions , shock waves , specific heat , eddies (fluid mechanics) , kinetic energy , computer simulations


Subject Categories : Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE