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Full-Text Articles in Aerodynamics and Fluid Mechanics
Cfd Analysis Of A T-38 Wing Fence, Daniel A. Solfelt
Cfd Analysis Of A T-38 Wing Fence, Daniel A. Solfelt
Theses and Dissertations
A computational study of the effects of a wing fence on the T-38 Talon was performed. RANS simulations were conducted using the CFD solver AVUS to examine the flow around the T-38 and the fence at a Reynolds number of 10 million. The T-38 was modeled as a half aircraft with a symmetry plane down the center line and did not include the empennage. The engine inlet and exhaust were modeled as sink and source boundary conditions using mass flow and pressure specifications. Two fence geometries placed 26" from the wing tip were tested. The first fence, called a simple …
Filtered Rayleigh Scattering Measurements In A Bouyant Flowfield, Christopher C. Mcgaha
Filtered Rayleigh Scattering Measurements In A Bouyant Flowfield, Christopher C. Mcgaha
Theses and Dissertations
Filtered Rayleigh Scattering (FRS) is a non-intrusive technique for studying flowfields. Molecular scattering provides the signal to the camera, and the difference in molecular cross section can be used to discriminate between unmixed gaseous components. The focus of this research is to document the behavior of a horizontal buoyant jet using FRS. A helium jet of precisely controlled mass flow rate is injected into a standard room temperature environment, and FRS provides the means to measure its core trajectory and mixing rate. Trajectory analysis, conducted with consideration of the Reynolds number and Grashof number, can be used to compare these …