Advanced Liquid Surface Tracking Software for Predicting Atomization in Gas Turbine Combustors and Augmentors

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$79,958.00
Award Year:
2007
Program:
SBIR
Phase:
Phase I
Contract:
N68335-07-C-0282
Award Id:
82597
Agency Tracking Number:
N071-046-1084
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1330 Charleston Road, Mountain View, CA, 94043
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
179576715
Principal Investigator:
ShorehHajiloo
General manager
(650) 691-6067
hajiloo@turbulentflow.com
Business Contact:
ParvizMoin
President
(650) 224-4882
moin@turbulentflow.com
Research Institute:
n/a
Abstract
The atomization of liquid fuels is a key process in gas turbine engines and augmentors, directly influencing combustion and thus engine performance. While adequate models exist for the secondary atomization, the crucial initial breakup is not well understood and predictive numerical simulation tools to analyze the process in detail do not exist. In this project, we propose to apply the recently developed Refined Level Set Grid (RLSG) to the primary atomization problem. This method, in a detached code, resolves and tracks all relevant phase interface length scales on a separate, locally refined grid. The RLSG code is coupled to the flow solver via a multi-code coupling environment, thereby ensuring easy portability and expandability. The resulting software package has been successfully applied to several two-phase flow benchmarks and is able to predict the observed physical breakup mechanisms during coaxial atomization. In the project's initial phase, we will access the capability of the proposed software framework to predict the atomization of liquid jets in cross-flow under conditions relevant to gas turbines and augmentors using experimental data in the near- and far-field. The data will then be assessed for its suitability to derive Large Eddy Simulation models for primary atomization.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government