Multi-Variable Sensitivity Technology for Enhancing Future Aircraft

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$98,855.00
Award Year:
1998
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
40962
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
AEROSOFT, INC.
1872 PRATT DR, Blacksburg, VA, 24060
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr. Andrew G. Godfrey
(540) 231-8117
Business Contact:
() -
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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