Experimental and Computational Investigation of Nozzles in a Crosswind Environment

Award Information
Agency:
Department of Defense
Amount:
$499,713.00
Program:
STTR
Contract:
N68335-08-C-0287
Solitcitation Year:
2007
Solicitation Number:
N/A
Branch:
Navy
Award Year:
2008
Phase:
Phase II
Agency Tracking Number:
N074-001-0125
Solicitation Topic Code:
N07-T001
Small Business Information
ILLINOISROCSTAR LLC
P. O. Box 3001, Champaign, IL, 61826
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
792045713
Principal Investigator
 William Dick
 CEO & Managing Member
 (217) 417-0885
 wdick@illinoisrocstar.com
Business Contact
 William Dick
Title: CEO & Managing Member
Phone: (217) 417-0885
Email: wdick@illinoisrocstar.com
Research Institution
 UNIV. OF ILLINOIS AT URBANA-CH
 Kathy Young
 OSPRA
1901 S First, Ste. A
Champaign, IL, 61820 7406
 (217) 333-2187
 Nonprofit college or university
Abstract
An integrated experimental and computational investigation of non-conventional nozzles and series of nozzles in crosswind environments is proposed. The experiments will be conducted at the University of Illinois and will provide a validation test bed for numerical simulations. High-fidelity three-dimensional simulations will be conducted using the proprietary framework Rocstar. This experimental and computational framework includes meshing capabilities and has flexibility sufficient to investigate a variety of nozzle configurations under varying conditions. We propose validated simulations of elliptical nozzles with aspect ratios of up to 20:1, exhaust-to-ambient temperature ratios of two to ten, momentum exhaust-to-ambient ratios of one to five, and nozzles in individual or group configurations. A powerful and unique visualization tool, Rocketeer, will be used to provide high quality, 3-D movies and graphics of computational results enabling users to better understand plume structure and characteristics. The goals of this work are to develop an extensive experimental test bed of non-traditional nozzles, both singularly and in groups, in a crosswind for validation of numerical codes, and to develop, validate, and commercialize a numerical tool suitable for design analysis that can accurately predict the turbulent characteristics (especially velocity and temperature) downstream of the exit.

* information listed above is at the time of submission.

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