Combined Viscous Vortex Particle Method with a Near Body CFD Solver for Rotorcraft Comprehensive Analysis

Award Information
Agency:
Department of Defense
Amount:
$729,987.00
Program:
SBIR
Contract:
W911W6-10-C-0058
Solitcitation Year:
2009
Solicitation Number:
2009.2
Branch:
Army
Award Year:
2010
Phase:
Phase II
Agency Tracking Number:
A2-4188
Solicitation Topic Code:
A09-020
Small Business Information
Advanced Rotorcraft Technology, Inc.
635 Vaqueros Avenue, Sunnyvale, CA, -
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
149732315
Principal Investigator
 Chengjian He
 Vice President of Researc
 (408) 523-5100
 he@flightlab.com
Business Contact
 Donna Carrig
Title: Vice President of Finance
Phone: (408) 523-5100
Email: donna@flightlab.com
Research Institution
N/A
Abstract
The unsteady rotor wake is a complicated flow problem and remains a challenging aspect of comprehensive rotorcraft analysis. The Phase I research has shown that a viscous vortex particle method (VVPM) can provide a first-principle-based solution to the challenging rotor wake problem. Applying VVPM for wake vorticity transportation, while using a modern near body CFD solver for resolving vorticity sources of the rotor blades or fuselage will render an effective hybrid aerodynamic solution in support of comprehensive rotorcraft analysis. This Phase II SBIR will fully develop and implement the coupled VVPM/CFD/CSD solution for an accurate prediction of the rotor wake vorticity variation and the rotor airloads calculation. The proposed SBIR research emphasizes the fundamental rotorcraft wake dynamics modeling and resulting airloads prediction accuracy. The development will address the integration of the state-of-the-art VVPM with a modern rotorcraft comprehensive analysis program, such as RCAS, in support of rotorcraft research, design, and engineering applications. The Phase II work will also emphasize the modularization of VVPM to make it sufficiently versatile that it can be used as a plug-in module for general solver integration platforms, such as HI-ARMS.

* information listed above is at the time of submission.

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