Heat Transfer Model for Bubbly Flows

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$100,000.00
Award Year:
2009
Program:
SBIR
Phase:
Phase I
Contract:
FA8650-09-M-2950
Agency Tracking Number:
F083-119-0636
Solicitation Year:
2008
Solicitation Topic Code:
AF083-119
Solicitation Number:
2008.3
Small Business Information
Orbital Technologies Corporation (ORBITE
Space Center, 1212 Fourier Drive, Madison, WI, 53717
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
196894869
Principal Investigator:
Millicent Coil
Senior Staff Analyst
(608) 229-2812
mmoore@toyon.com
Business Contact:
Eric Rice
Director of Finance
(608) 229-2730
mlindbery@toyon.com
Research Institution:
n/a
Abstract
ORBITEC proposes to develop a heat transfer model to predict heat transfer coefficient in bubbly flows in small tubes.  This model is intended for application to thermal management systems in a variety of propulsion systems, including both air-breathing and rocket engines.  The Phase I work will include parallel experimental and modeling work.  The experimental program will measure heat transfer coefficient and void fraction in bubbly flows of a few fuels in small tubes.  A simplified numerical model will simulate the experiments and build the foundation for a more complex model.  Phase II work will implement the model in a CFD code and will validate its predictions with experiments on a fuel-cooled rocket engine nozzle. BENEFIT: The two-phase heat transfer model developed under this effort will enable engineers to use commercial CFD codes to model thermal management system for a variety of propulsion applications.  Because two-phase heat transfer in small tubes is ubiquitous in propulsion system, the code and the understanding developed through using it will have application to a variety of groups within DoD, NASA, and commercial companies.  ORBITEC intends to be a supplier of both the code and the expertise heat transfer in two-phase flow.

* information listed above is at the time of submission.

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