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Nonlinear Interaction of Impulsive Acoustic/Hydrodynamic Sources and Natural…

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
Program Year/Program:
2011 / STTR
Agency Tracking Number:
N09A-002-0008
Solicitation Year:
2009
Solicitation Topic Code:
N09-T002
Solicitation Number:
2009.A
Small Business Information
Cortana Corporation
520 N. Washington Street, #200 Falls Church, VA -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2011
Title: Nonlinear Interaction of Impulsive Acoustic/Hydrodynamic Sources and Natural Ocean Inhomogeneities
Agency / Branch: DOD / NAVY
Contract: N68335-11-C-0019
Award Amount: $743,090.00
 

Abstract:

Phase II research will follow the most promising leads developed in Phase I, with the end goal of developing a viable physics-based model that can explain observations available to the Government. A dispersive focusing mechanism, supplemented by the theory of cylindrically-symmetric solitons, is the most promising mechanism identified in Phase I. Three related tasks will be performed: Detailed theoretical and numerical analysis of the process of linear dispersive focusing in cylindrical geometry. Formulation of correct non-linear solitary wave propagation equations in cylindrical coordinates, and theoretical and numerical analysis of the transition from linear to non-linear propagation. Modeling of the radar signature produced by the cylindrical wave packets propagating outward from the source. A weak shock mechanism was studied in Phase I, and some additional research related to this mechanism is proposed for Phase II. Two tasks are planned. Adaptation of the existing shock propagation model to a non-uniform environment. Laboratory measurements of the long-time effects of the Richtmyer-Meshkov instability at the air/water interface.

Principal Investigator:

John Pierce
Senior Scientist
(703) 534-8000
jpierce@cortana.com

Business Contact:

Marjorie Moore
Director of Administratio
(703) 534-8000
mmoore@cortana.com
Small Business Information at Submission:

Cortana Corporation
520 N. Washington Street, #200 Falls Church, VA -

EIN/Tax ID: 541022146
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
ARL/Penn State University
PO Box 30
State College, PA 16804-
Contact: Robert L. Baker
Contact Phone: (814) 867-1552