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Publication Citation: TOWARDS SUBGRID SCALE MODELING OF SUPPRESSANT FLOW IN ENGINE NACELLE CLUTTER

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Author(s): P E. DesJardin; J M. Nelson; L A. Gritzo; David R. Keyser; T A. Ghee; J R. Tucker; P J. Disimile;
Title: TOWARDS SUBGRID SCALE MODELING OF SUPPRESSANT FLOW IN ENGINE NACELLE CLUTTER
Published: April 24, 2001
Abstract: The release and transport of a suppressant agent into an enclosed compartment is sensitive to local geometrical features or ,clutterŠ that is difficult to resolve numerically without using an excessively large CFD grid. Such examples include wire bundles or hydraulic lines in engine compartments of either ground vehicles or aircraft. Capturing these features on a grid will result in extremely small time steps for explicit time-accurate numerical simulations of agent release and subsequent fire suppression. An alternative approach is to use a subgrid scale (SGS) model to represent the macroscopic effects of these small features using reasonably sized CFD grid cells.
Citation: NIST SP - 984-4
Research Areas: Building and Fire Research
PDF version: PDF Document Click here to retrieve PDF version of paper (299KB)