HPC Enhancement of Plume Modeling for Use by Military Simulators
Abstract
CT-Analyst(Registered) is a high fidelity, fast, accurate, model for the transport and dispersion of contaminants. These capabilities arise from the use of Dispersion Nomografts(Trademark), which are pre-computed from detailed high-resolution three-dimensional (3D) computational fluid dynamics (CFD) calculations from FAST3D-CT. These calculations are run ahead of time and currently take a week or more to run on a moderate sized high performance computing (HPC) machine. CT-Analyst runs on a variety of platforms that include Windows, Mac OS X and various flavors of UNIX and Linux. An application programming interface (API) was developed to make CT-Analyst's high fidelity physics based plume predictions available to modeling and simulation (M&S) tools. This plume API was used with the M&S application One Semi-Automated Forces (One SAP). OneSAF is a next generation entity level simulation. For a 10 by 5 km region of Baghdad, OneSAF made use of CT-Analyst through the application programming interface (API) to determine the plume locations, the plume concentration at points within the simulation, and to determine the attenuation of visibility along a line. Figure 1 shows the overall process required to generate these plumes for One SAP. Before the simulation is run, FAST3D-CT generates a Pre-Computed Nomograf database. During the simulation, OneSAP calls a CT-Analyst process that in turn interprets the Nomograf database to generate plumes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2007
- Accession Number
- ADP023735
Entities
People
- Adam Moses
- Keith Obenschain
Organizations
- United States Naval Research Laboratory