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Multi-Variable Sensitivity Technology for Enhancing Future Aircraft

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 40962
Amount: $98,855.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1998
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
1872 PRATT DR
Blacksburg, VA 24060
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Dr. Andrew G. Godfrey
 (540) 231-8117
Business Contact
Phone: () -
Research Institution
N/A
Abstract

Recent advancements in both computational efficiency and physical-modeling capabilities have increased the utility of computational fluid dynamics in the vehicle-design process. However, beyond knowing the aerodynamic characteristics of a fixed configuration, the vehicle designer is interested in how to change the design to improve speed and maneuverability. Recent research into the sensitivity-equation approach has demonstrated the ability to efficiently predict flow tendencies and determine stability derivatives in the framework of a high-order aerodynamic optimization. The procedure numerically solves linear partial differential equations for the sensitivities themselves instead of differentiating the discretized fluid-dynamic equations. However, to date, no commercial software is available which solves these valuable and insightful equations for viscous, compressible, chemically reacting flow.We propose a stand-alone software package that solves the sensitivity equations with direct application to analysis of unconventional aircraft. The proposed sensitivity software can be used with any CFD flow solver: Commercial, public domain, or research-level.

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

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