Rocket Exhaust Plume Secondary Smoke Formation Modeling

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$119,991.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
W31P4Q-04-C-R124
Agency Tracking Number:
A032-1639
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
COMBUSTION RESEARCH & FLOW TECHNOLOGY, INC.
6210 Keller's Church Road, Pipersville, PA, 18947
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
929950012
Principal Investigator:
Brian York
Principal Scientist & Tre
(215) 766-1520
york@craft-tech.com
Business Contact:
Brian York
Principal Scientist & Tre
(215) 766-1520
york@craft-tech.com
Research Institution:
n/a
Abstract
Our proposal addresses the inclusion of a secondary smoke model into a modern CFD code that is widely used for plume simulations. This will permit high fidelity simulations of dynamic, missile exhaust plume flowfields that, under certain conditions, produce a condensation cloud that can obscure the electromagnetic signals utilized for guidance and targeting. We will utilize a state of the art Navier-Stokes code that already contains much of the requisite physics (finite-rate chemistry, multiphase particulates, condensation/vaporization, etc.) in a dynamic grid framework that was developed to analyze extended plumes (launch to target) for tactical systems. In Phase I, we will implement and demonstrate the operation of an advanced secondary smoke model in the CRAFT CFDr code that will model the condensation of water vapor on heterogeneous nuclei in the presence of HCL. The resulting droplets will be composed of water only and droplets with variable water/acid compositions will be addressed in Phase II. We will assess the potential of the modeling approach for providing high fidelity predictions that can accurately simulate secondary smoke formation in tactical missile exhaust plumes under a broad range of conditions, and in our optional task, perform studies for a representative tactical missile system.

* information listed above is at the time of submission.

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