Innovative Vortex Method for non-diffusive Rotorcraft Computational Fluid Dynamics (CFD) Computations

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-14-C-0027
Agency Tracking Number: N132-092-0086
Amount: $80,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2014
Solicitation Year: 2013
Solicitation Topic Code: N132-092
Solicitation Number: 2013.2
Small Business Information
VorCat, Inc.
14 Freas court, North Potomac, MD, 20878-2586
DUNS: 127204431
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 jacob krispin
 (301) 762-5553
Business Contact
 jacob krispin
Title: president
Phone: (301) 762-5553
Research Institution
This SBIR Phase I proposal will examine the feasibility of using the VorCat implementation of the gridfree vortex method to provide accurate, real time simulations of rotor wake, specifically the tip vortex structure, in various flight scenarios. Rotor wake flow is complex and poorly served by traditional Computational Fluid Dynamics (CFD) methodologies due to their inherent excessive numerical diffusion and this project capitalizes on the unique capabilities of the VorCat code in efficiently capturing the physics of complex turbulent flows by using vortical elements to represent the vortices that lie at the heart of turbulent fluid motion. The phase I study will be aimed at answering several questions that will establish the parameters controlling real time wake vortex dynamics and consequently in what way rotor downwash affects rotor aerodynamics and structural loading. In particular, this study will investigate several approaches for modeling rotor vorticity and will establish the optimal setup that provides rapid and accurate results. This, in turn, will be utilized for a rigorous analysis which will determine the flow parameters that dominate wake vortex dynamics. If successful, the technology will be verified, validated and delivered to the Navy in later phases of this work.

* information listed above is at the time of submission.

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