All rights reserved © 2007 - Combustion Research and Flow Technology, Inc. (CRAFT Tech®).
1. Multi-Phase Flow Research:
Development for multi-phase physics include dense sprays, high loading fluidized beds and cavitation in liquid rocket turbomachinery. An acoustically accurate formulation for gas/liquid flows which propagates pressure waves through gas/liquid interfaces permits the simulation of acoustic interaction with combustion/cavitation processes.
2. Turbulence Research:
For complex problems, several extensions to two equation k-epsilon models are being developed including: Explicit Algebraic Stress Models (EASM) to account for non-equilibrium effects; corrections to account for compressibility effects in high speed flows; anisotropy effects in the dissipation rate (ADRM model); and, variable Prandtl number model (Prandtl number as a function of the local flowfield).
3. Aero-Acoustic Research: For large scale unsteady problems, a hybrid LES-RANS model is available which provides a unified grid dependent turbulence model framework which devolves to a RANS model in the limit of coarse resolution and yields a consistent LES/DNS model in the limit of high resolution. The transition is accomplished through the dynamic evaluation of the local turbulence length scale in relation to the local grid scale.
4. Gallery of Flows: View some animations of flows studied at CRAFT Tech.
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