NASA SBIR 2008 Solicitation


PROPOSAL NUMBER: 08-1 A2.10-9784
SUBTOPIC TITLE: Propulsion Systems
PROPOSAL TITLE: Sensitivity-Based Simulation Software for Optimization of Turbine Blade Cooling Strategies

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Jabiru Software and Services
3819 Sunnycroft Place
West Lafayette, IN 47906 - 8815
(765) 497-3653

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Sanjay Mathur
3819 Sunnycroft Place
West Lafayette, IN 47906 - 8815
(765) 497-3653

Expected Technology Readiness Level (TRL) upon completion of contract: 5 to 6

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
In recent years, there has been a tendency to use ever-higher gas turbine inlet temperatures, resulting in ever-higher heat loads necessitating efficient cooling. Internal cooling designs have evolved from the use of simple curved ducts in early designs to very complex geometries. Similar complexities govern film cooling as well, leading to complex fluid-structure interactions and turbulence physics. These complexities make it impossible to obtain optimal cooling designs by intuition alone.
In this project we propose to develop optimization software for the design and optimization of turbine blade cooling strategies. The objectives of Phase I are to (i) demonstrate the feasibility of accurate single-point physical modeling of internal and film cooling geometries using our CFD solver TETHYS, (ii) demonstrate the feasibility of sensitivity computation and uncertainty quantification using TETHYS, (iii) apply these sensitivity and uncertainty quantification approaches to turbine blade cooling and to demonstrate their advantage over single-point CFD simulations, and (iv) develop and demonstrate multivariate optimization of a chosen turbine blade cooling problem.
Phase II will extend our methodology to geometry optimization, the improvement of physical models and numerical schemes, parallel processing on shared and distributed memory platforms and multicore architectures, as well as application to more complex optimization problems.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The solver developed during Phases I and II of this project will find wide applicability in NASA. Efficient and accurate flow solvers based on unstructured meshes addressing compressible and incompressible flows will find use in NASA's aerodynamics, aerothermodynamics, space entry, internal fluid mechanics, turbomachinery, microgravity, propulsion and materials processing programs. Sensitivity, uncertainty and optimization software will find use in every application in which computational fluid dynamics (CFD) is used, but especially in aerodynamics, propulsion, turbomachinery, space re-entry, and materials processing.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The solver developed in Phases I and II will find non-NASA applications in virtually every application in which computational fluid dynamics (CFD) is used today. This includes aerodynamics, automotive, chemicals processing, electronics cooling, food processing, materials processing, power generation, propulsion and many others.

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

Aircraft Engines
Fundamental Propulsion Physics

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