Modeling High-Temperature Erosive Gas Flow to Support Barrel Erosion Reduction Concept Modeling for Fire Support Gun Application

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00178-03-C-1010
Agency Tracking Number: N01-122-04
Amount: $749,936.00
Phase: Phase II
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Software & Engineering Assoc.
1802 N. Carson Street Suite 200, Carson City, NV, 89701
DUNS: 083152975
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Stuart Dunn
 Senior Engineer
 (775) 882-1966
 stu@seainc.com
Business Contact
 Douglas Coats
Title: President
Phone: (775) 882-1966
Email: doug@seainc.com
Research Institution
N/A
Abstract
"New requirements for modern gun systems have greatly increasedthe propellant flame temperature and reactivity of the combustionproducts. As a result, thermochemical erosion can greatlyreduced the service life of the gun tubes in these systems.Coatings and liners have been used to mitigate erosion, withmixed results. In order to design a new gun tube which resistsexcessive wear, a thorough understanding of the mechanismscontributing to thermochemical erosion is necessary. Althoughmost of the tools required to calculate thermochemical erosionexist as individual programs, the actual analysis procedure isquite cumbersome, labor intensive and error prone. Theseindividual physical models need to be extended to increase theirapplicability for new gun systems (such as a surface-crackingmodel) and the results merged into a Unified ThermochemicalErosion Program, TCEP. This new program development will resultin a single computer code that melds modern computationalmodeling with all the prior knowledge of thermochemical erosion.The new code will allow designers to parametrically evaluate andcompare erosion performance resulting from various combinationsof propellant, materials, and wear-reduction technologies. Thisscreening tool will allow the designer to concentrate on the mostpromising wear resistant technology.BENEFITS: The benefits of the development of the Phase II product, the Unified Thermochemical Erosion Program (TCEP), are that i

* information listed above is at the time of submission.

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