A Numerical Investigation Of Laminar Confined Coaxial Jet Flow
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Numerical Investigation of a Jet Flow with a Hatch and an Opening
Author | : Mrinal V.. Nagrecha |
Publisher | : |
Total Pages | : 68 |
Release | : 2011 |
Genre | : Electronic dissertations |
ISBN | : |
The goal of this project was to establish a datum for acoustics generated in an exhaust flow from a jet pipe, due to the presence of an opening with a hatch at an angle, by using the Computational Fluid Dynamics (CFD) tool FLUENT. After validating the geometry using a supersonic case employing a fully expanded jet, a secondary supersonic test case was produced to compare results with the former using a Detached Eddy Simulation with Spalart-Allmaras (DES-SA) scheme. Two subsonic cases using the same boundary conditions (BCs) were then computed using a Large Eddy Simulation (LES) turbulence model in order to solve for flow-field data and Sound Pressure Level (SPL) of the given geometry. Focus was given to the region around the opening, and the computed pressure data was stored in three regions: above the opening, under the opening, and past the opening. Pressure contours in the region around the hatch were captured well and shown to be consistent between the two geometries employed for the domain of solution. Results concluded that using the smaller domain of solution maintained resolution quality while decreasing overall computation time tremendously.
Experimental Study of One- and Two-component Low-turbulence Confined Coaxial Flows
Author | : John C. Bennett |
Publisher | : |
Total Pages | : 100 |
Release | : 1971 |
Genre | : Fluid mechanics |
ISBN | : |
Numerical Investigation of Laminar and Turbulent Natural Convection in Enclosures
Author | : Gregory P. Nurnberg |
Publisher | : |
Total Pages | : 244 |
Release | : 1988 |
Genre | : Fluid dynamics |
ISBN | : |
Hydraulic Research in the United States and Canada
Author | : United States. National Bureau of Standards |
Publisher | : |
Total Pages | : 1046 |
Release | : 1968 |
Genre | : Hydraulic engineering |
ISBN | : |