SOLICITATION NOTICE
A -- IMPROVEMENTS IN 3-D, UNSTEADY TURBINE AND PUMP FLOW PREDICTION CAPABILITIES
- Notice Date
- 9/14/2004
- Notice Type
- Solicitation Notice
- NAICS
- 541710
— Research and Development in the Physical, Engineering, and Life Sciences
- Contracting Office
- NASA/George C. Marshall Space Flight Center, Procurement Office, Marshall Space Flight Center, AL 35812
- ZIP Code
- 35812
- Solicitation Number
- NNM0484721Q
- Response Due
- 9/25/2004
- Archive Date
- 9/14/2005
- Description
- NASA/MSFC has a requirement for services to improvements in 3-D, Unsteady Turbine and Pump Flow Prediction Capabilities. NASA/MSFC intends to purchase the services from Trustees of Boston University as a sole source procurement to implement year 2 and year 3 (option) from the basic contract awarded to Sondak Consulting via purchase order number H-36375D. Year 2 - Two Equation Turbulence Model The Contractor shall implement a two-equation turbulence model into Phantom to complement the existing algebraic turbulence model. The Contractor shall validate the model with an accepted suite of benchmark cases agreed upon with MSFC. The implementation of the model and the results of the benchmark cases shall be documented in quarterly and final reports. Application of Phantom to Secondary Flow Paths The Contractor shall develop and implement flow field initialization routines for secondary flow paths and cavities. The Contractor shall apply Phantom to two secondary flow paths and cavities representative of those found in rocket engine turbines and pumps. MSFC shall provide the Contractor with the geometries and boundary conditions. The Contractor shall post-process the results, and provide them to MSFC in an agreed upon format in quarterly and final reports. Framework for Cavitation and Two-Phase Flow Models The Contractor shall develop the framework needed to support cavitation and two-phased flow models. The Contractor shall implement this framework into Phantom. The details of this framework and its implementation shall be reported in quarterly and final reports. Year 2 Simulations The Contractor shall run the following verification cases with the improved code. Geometries and flow conditions will be provided by MSFC in an agreed upon format. 1) 3D flows in turbine and pump secondary flow paths; 2) 3D flows in a turbine and pump cavities; 3) 3D flow simulations for turbulence model validation. The Contractor shall document the results in an agreed upon format in the quarterly and final reports. Year 3 Implementation for a Cavitation Model A cavitation model is currently being developed by CRAFT-Tech, Inc., as part of a Phase II SBIR. The Contractor shall implement this cavitation model into Phantom. The Contractor shall validate the model with an accepted suite of benchmark cases agreed upon with MSFC. The implementation of the model and the results of the benchmark cases shall be documented in quarterly and final reports. Year 2 Simulations The Contractor shall run the following verification cases with the improved code. Geometries and flow conditions will be provided by MSFC in an agreed upon format: Two 3D geometries for validation of the cavitation. The Contractor shall document the results in an agreed upon format in the quarterly and final reports. Competition is impractical for the following reasons: 1) Dr. Douglas Sondak who currently is employeed by the Trustees of Boston University and is the co-author of the CFD code CORSAIR, which is to be restructured in this project. Because of Dr. Sondak's familiarity and experience with CORSAIR, he is deemed the only contractor suitable for performing the services required. CORSAIR is the only code of its type that meets MSFC requirements for rocket turbine unsteady predictions, and is the code that MSFC currently uses and maintains. 2) Dr. Sondak implemented the General Equation Set, which we want in 3D code CORSAIR under this project, into the 2D CFD code WILDCAT under contract to MSFC. A switch in contractors would adversely impact the continuity of the effor and raise serious questions as to the compatibility between required enhancements and the currently available code. 3) Dr. Sondak currently works through Boston University rather than through Sondak Consulting. Interested organizations may submit their capabilities and qualifications to perform the effort in writing to Allison K. Sandt, Eagle Systems & Services via fax or email, 256-544-6062 or allison.k.sandt@msfc.nasa.gov not later than 3:30 p.m. local time on September 25, 2004. Such capabilities/qualifications will be evaluated solely for the purpose of determining whether or not to conduct this procurement on a competitive basis. A determination by the Government not to compete this proposed effort on a full and open competition basis, based upon responses to this notice, is solely within the discretion of the government. Oral communications are not acceptable in response to this notice. All responsible sources may submit an offer which shall be considered by the agency. An Ombudsman has been appointed. See NASA Specific Note "B".
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