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Turbulent Combustion Interaction Models for LES Simulations of High Speed Flow

Award Information

Agency:
Department of Defense
Branch:
Office of the Secretary of Defense
Award ID:
Program Year/Program:
2011 / STTR
Agency Tracking Number:
F10B-001-0081
Solicitation Year:
2010
Solicitation Topic Code:
OSD10-T001
Solicitation Number:
2010.B
Small Business Information
Cascade Technologies Incorporated
2445 Faber Place #100 Palo Alto, CA 94303-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2011
Title: Turbulent Combustion Interaction Models for LES Simulations of High Speed Flow
Agency / Branch: DOD / OSD
Contract: FA8650-AA-M-2173
Award Amount: $100,000.00
 

Abstract:

At present, the predictive capability of simulation codes and models used in the conceptual planning and design of high-speed propulsion systems is limited by the ability to describe the complex flow fields inside the combustor, mixing models, detailed chemistry and turbulence-chemistry interactions, and subgrid-closure models. The objective of the proposed work is to develop and validate a high-fidelity LES combustion model based on Flamelet Progress Variable Approach for the accurate prediction of high-speed turbulent combustion. At Cascade, we have a state-of-the-art, fully unstructured, multi-physics LES solver that is currently being used to simulate turbulent combustion in military aircraft engines. Our present efforts are on extending our simulation tool to high-speed turbulent combustion, improve its performance and further validate our approach. In Phase I, a comprehensive program is proposed that consists of (i) an a priori study to evaluate critical model assumption of the flamelet-formulation for reacting jet in high speed-relevant cross-flow conditions and (ii) a posteriori validation and applicability assessment of the LES flamelet-combustion model for supersonic combustion against experimental data. The results of these studies will be leveraged towards model development/assessment, validation of the simulation tool, and improvement of the predictive capabilities of the methodology for high-speed turbulent combustion.

Principal Investigator:

Hung Le
General Manager
(650) 521-0243
hle@turbulentflow.com

Business Contact:

Donna Carrig
Chief Financial Officer
(650) 521-0243
ddcarrig@turbulentflow.com
Small Business Information at Submission:

Cascade Technologies Incorporated
2445 Faber Place #100 Palo Alto, CA -

EIN/Tax ID: 043353686
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Georgia Institute of Technology
Georgia Tech Research Corporat
PO Box 100117
Atlanta, GA 30384-
Contact: Suresh Menon
Contact Phone: (404) 894-9126