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Showing 1 to 6 of 6 for “"Body Force Model"”.
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Development of a body force model for centrifugal compressors
This project is focused on modeling the internal ow in centrifugal compressors for the purpose of assessing the onset of rotating stall and surge. The current methods to determine centrifugal compressor stability limits are based on empirical data and often, experiments. Unsteady full wheel …
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A body force model for cavitating inducers in rocket engine turbopumps
… This thesis presents the development of a body force model for cavitating inducers with the goal of enabling interrogation of the onset of rotating cavitation and higher order cavitation instabilities and characterization of the governing uid dynamic mechanisms. Building on body force …
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Body Force Modeling for Engine Inlet Fan System
… nacelle/fan systems. The method adopts the body force concept using source terms to model the effects of fan blades. The method is designed to capture interaction effects between bypass fan and nacelle at off-design conditions, especially for circumferential inlet distortions. The unique …
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Characterization of cavitation instabilities in rocket engine turbopump inducers
… experimental analysis and a previously developed body force modeling approach using the MIT inducer, representative of the design of the Space Shuttle main engine low-pressure oxidizer pump inducer. A previously developed temporal and spatial Fourier decomposition, known as Traveling Wave Energy …
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An assessment of body force representations for compressor stall simulation
This thesis examines an axial compressor body force representation constructed from 3D CFD calculations. The radial distribution of body forces is compared to that of a body force representation based on axisymmetric streamline curvature (SLC) calculations, and shown to be in qualitative agreement …
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A methodology for centrifugal compressor stability prediction
… with vaned diffusers. The approach, based on a body force representation of the blade rows, is different from previous research in that the prediction is independent of compressor stability correlations and a-priori knowledge of the compressor characteristics. The methodology consists of a …