Recent Success Story: The LES model captured the large-scale unsteadiness known to exist for recessed cavity flows.

Taitech scientists are working on an SBIR Phase II project focusing on Large Eddy Simulation. The project is based on application of the VULCAN code. The LES capability allows VULCAN to simulate the unsteady nature of the SCRAMJET engines. The present application considers the cold flow characteristics of flow over recessed cavities for scramjet flameholding applications. Early efforts using standard two-equation eddy viscosity models were not capable of predicting the self-oscillatory unsteady flow features associated with fluid flow over recessed cavities. The VLES model captured the large-scale unsteadiness known to exist for recessed cavity flows, providing a more accurate representation of the mass and energy exchange between the cavity flameholder and combustor mainstream.

Other CFD efforts: VULCAN code and DRAGON Grid Generation code

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Last modified: February 20, 2002