Development of a Space-Time Window for Large Eddy Simulations
Creators:Munguia, Brian C.
Advisor:Gaitonde, Datta V.
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Publisher:The Ohio State University
Series/Report no.:The Ohio State University. Department of Mechanical and Aerospace Engineering Honors Theses; 2014
A major problem in the field of aeronautics is jet noise. Jet noise is caused by turbulence in a flow and is still difficult to predict even with the use of computational techniques. The difficulty arises from determining the location of the source of noise in a specified region. The proposed research will analyze jet flows using window functions. Window functions are mathematical functions that have a value of zero outside of a specified interval. Applying window functions to a simulation allows isolation of specific regions in a flow. The High-Fidelity Computational Multi-Physics Laboratory, or HFCMPL, already has datasets for various flow regimes as well as codes to analyze the data. The goal of the project is to develop a function that will analyze the effects of a small, localized disturbance in a jet flow, allowing better correlation between local phenomena and their effects downstream. The code has been used to analyze existing datasets and characterize different window functions. The code will be implemented into the existing simulation architecture to gain further understanding of jet noise.
Academic Major: Aeronautical and Astronautical Engineering
The College of Engineering