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Development of a Unified Stochastic-Hydrodynamic Simulation EnviRonment (USHER) for Biological Agent Neutralization and Defeat

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8651-04-C-0235
Agency Tracking Number: F041-175-3000
Amount: $99,985.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: AF04-175
Solicitation Number: 2004.1
Timeline
Solicitation Year: 2004
Award Year: 2004
Award Start Date (Proposal Award Date): 2004-04-27
Award End Date (Contract End Date): 2004-10-27
Small Business Information
215 Wynn Dr., 5th Floor
Huntsville, AL 35805
United States
DUNS: 185169620
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Jerry Jenkins
 Senior Engineer
 (256) 726-4800
 jls@cfdrc.com
Business Contact
 Ashok Singhal
Title: President & CEO
Phone: (256) 726-4800
Email: aks@cfdrc.com
Research Institution
N/A
Abstract

The overall objective of this proposal is to design, develop and demonstrate an integrated "Virtual Numerical Laboratory" (USHER) for simulational evaluation of biological agent defeat strategies. Traditional Computational Fluid Dynamics (CFD) calculations of agent neutralization, based on deterministic chemical kinetics can lead to misleading conclusions. We propose to develop a novel, stochastic formalism to describe agent-neutralizer interactions and tightly integrate it into an incompressible CFD framework with coupled turbulence and moving body models. CFD-ACE+, an industry leading multiphysics simulation software, will be used as the development platform. The proposed effort will leverage on several recent research advancements in CFD-ACE+ including a novel Surface Marker Point approach and Chimera formulation for moving boundary calculations as well as Large Eddy Simulations (LES) for turbulent flow modeling. During Phase I, stochastic agent-neutralizer interactions will be represented via a convection-coupled Fokker-Planck description. The applicability of this model will be demonstrated in a test environment featuring projectile penetration and agent neutralization in a container. The more complex Master-Equation (growth/death) approach will be formulated. In Phase II, further development and numerical implementation of all models (stochastic kinetics, moving body) will be completed. Demonstration of the new simulation capability in a government approved test scenario is planned.

* Information listed above is at the time of submission. *

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