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Novel Eulerian Vorticity Transport Wake Module for Rotorcraft Flow Analysis

Award Information

Agency:
Department of Defense
Branch:
Army
Award ID:
73915
Program Year/Program:
2006 / SBIR
Agency Tracking Number:
A052-065-1036
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Continuum Dynamics, Inc.
34 Lexington Avenue Ewing, NJ -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2006
Title: Novel Eulerian Vorticity Transport Wake Module for Rotorcraft Flow Analysis
Agency / Branch: DOD / ARMY
Contract: W911W6-06-C-0057
Award Amount: $729,836.00
 

Abstract:

Accurate performance prediction is essential to the development of Army rotorcraft as well as the support of flight operations. While current numerical analysis tools can, in principle, model complete rotorcraft, in practice these implementations are severely hampered by accuracy limitations broadly attributed to modeling assumptions (e.g., vortex core models in Lagrangian methods) or numerical deficiencies (e.g. excessive numerical diffusion for Eulerian CFD). Thus, commonly used analysis tools fail to predict adequately the unsteady wakes and load distributions of rotor and fuselage designs. An approach that combines the first-principles physical modeling capability of Eulerian schemes with the vortex preservation capabilities of Lagrangian vortex techniques has long been needed. Enabled by recently-developed breakthrough technologies in Eulerian wake modeling that specifically address the critical numerical diffusion issue, this effort will develop a first-principles Eulerian vorticity transport wake module that will provide an unprecedented ability to capture the true temporal and spatial structure of the rotor wake when coupled to a wide range of CFD tools. In Phase I, a prototype wake module was developed and demonstrated through coupling to several representative CFD models. Phase II will see key enhancements, validation and packaging of a module with significantly expanded functionality tailored to Army needs.

Principal Investigator:

Glen R. Whitehouse
Associate
6095380444
glen@continuum-dynamics.com

Business Contact:

Barbara A. Agans
Administrator
6095380444
barbara@continuum-dynamics.com
Small Business Information at Submission:

CONTINUUM DYNAMICS, INC.
34 Lexington Avenue Ewing, NJ 08618

EIN/Tax ID: 222248930
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No