NASA/Dryden Flight Research Center, Code A, P.O. Box 273, Edwards, CA 93523-0273

A -- WIND TUNNEL INVESTIGATION OF SHOCK WAVE BOUNDRY LAYER INTERACTION AND CORRELATION WITH A SHOCK LOCATION SENSOR SOL P9RA01074-CLV DUE 032999 POC Carol L. Van Gelder, Contracting Officer, Phone (805) 258-3071, Fax (805) 258-2904, Email carol.van.gelder@mail.dfrc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/DFRC/date.html#P9RA01074-CLV. E-MAIL: Carol L. Van Gelder, carol.van.gelder@mail.dfrc.nasa.gov. This notice is a combined synopsis/solicitation for commercial items prepared in accordance with the format in FAR Subpart 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; quotes are being requested and a written solicitation will not be issued. This procurement is being conducted under the Simplified Acquisition Procedures (SAP). Proposed Statement of Work for Wind Tunnel Investigation of Shock-Wave Boundary Layer Interactions and Correlation with a Shock Location Sensor, dated December 29, 1998. Background: Under contract from the NASA Dryden Flight Research Center (NASA P O No. E03053D), successful exploratory wind tunnel studies were conducted to establish that surface mounted Platinum Resistance Thermometers (PRT) as well as surface hot-film sensors operated by CVA can be used to detect shock or shock-induced separation locations. Tests were conducted at Mach 3.0 on an instrumented flat-plate in a low Reynolds number Supersonic Shear Facility at Pennsylvania State University. These tests established for the first time that a rugged sensor (PRT) with Constant Voltage Anemometry (CVA) instrumentation could be used to detect shock impingement phenomena for high temperature applications. Signals from both hot-films and PRTs showed similar trends in response to the presence of the shock. Unfortunately, the off-surface Schlieren flow visualization was not of high enough quality to be useful in correlating the off-surface shock-wave boundary layer interactions with the surface mounted sensors. Also, the PRTs were not flush mounted and therefore significantly influenced the boundary layer flow. More refined experiments will be required to accurately establish the flow features and their relationship with surface hot-film and PRT signals. Other results from the first wind tunnel test included. 7 Both hot-films and PRTs provided signals which could be related to expansion waves in a supersonic flow. This feature to identify the locations of supersonic expansion regions could also become useful in future R&D efforts and for CFD code validation. 7 A different approach in data processing and display has been discovered which potentially lends more clarity to the extraction of the shock location. This approach is based on first computing the relative changes in surface shear stress. Significant progress made in the first wind tunnel study has made it possible to develop advanced Techniques to more accurately investigate shock-wave boundary layer interactions. Further wind tunnel testing is desired in this statement of work to obtain definable correlation between the off-surface shock boundary layer interactions and the surface-mounted hot films. Technical Objectives: 1. Conduct shock location sensor testing of an oblique shock impinging on a boundary layer. Conduct test over a wide range of test parameters including Reynolds number and Mach number. 2. Obtain accurate and reliable reference data using conventional techniques. These include pressure and optical measurements to establish shock-wave boundary layer characteristics for comparison with data obtained from surface hot-film sensors. 3. Develop correlation criteria applicable to hot-film use in a real-time shock location sensor. Work Tasks: (1) Conduct an experimental study using flexible hot-film and other sensors such as PRT surface mounted sensors to detect shock location from an impinging oblique shock in a supersonic wind tunnel. This study will require the design and installation of shock generators to create a supersonic shock at a known location of the tunnel where the sensors will be installed. The location of the shock will be independently established with simultaneous optical and pressure measurements using conventional techniques. Preferably, the hot-film sensors would be located between tow chord-wise rows of pressures to identify any undesired span-wise flow features. Hot-films and PRTs must be embedded in the model and installed so as to provide a flush surface to the flow. Effort must be extended to obtain high quality flow visualization capable of successfully identifying shock-wave boundary layer interactions and shock induced separations and reattachments. (2) Conduct the experiments over a wide range in Mach and Reynolds Number. In this manner experiments will be performed on shock waves intersecting boundary layers with quite different thickness and character. (For example, both laminar and turbulent boundary layers). (3) Obtain sufficient data on the characteristics of hot-film sensors so that they can be Used in the development of effective measurement techniques with satisfactory robustness, sensitivity and bandwidth. (4) Document results with a final report describing the major findings of the study. Include discussion on how the surface-mounted sensors can be used to identify off-surface flow features (such as shock location and/or shock-induced separation) in a real-time application. This may include such identification algorithms as minimum voltage output or phase reversal. Complete all tasks by Sept. 30, 1999 and at a cost not to exceed $82k. The provisions and clauses in the RFQ are those in effect through FAC 97-11. This procurement is a total small business set-aside. See Note 1. The SIC code and the small business size standard for this procurement are 8734 and 500 employees, respectively. The quoter shall state in their quotation their size status for this procurement. All qualified responsible business sources may submit a quotation which shall be considered by the agency. The DPAS rating for this procurement is DO-A7. Quotations for the items(s) described above may be mailed or faxed to the identified point of contact or bid distribution office, by the date/time specified and include, solicitation number, FOB destination to this Center, proposed delivery schedule, discount/payment terms, warranty duration (if applicable), taxpayer identification number (TIN), identification of any special commercial terms, and be signed by an authorized company representative. Quoters are encouraged to use the Standard Form 1449, Solicitation/Contract/Order for Commercial Items form found at URL: http://procure.arc.nasa.gov/Acq/Forms/Index.html to submit a quotation. Quoters shall provide the information required by FAR 52.212-1. Addenda to FAR 52.212-1 are as follows: If the end product(s) quoted is other than domestic end product(s) as defined in the clause entitled "Buy American Act -- Supplies," the quoter shall so state and shall list the country of origin. The Representations and Certifications required by FAR 52.2l2-3 may be obtained via the internet at URL: http://ec.msfc.nasa.gov/msfc/pub/reps_certs/sats/ FAR 52.212-4 is applicable. FAR 52.212-5 is applicable and the following identified clauses are incorporated by reference. Contract Terms and Conditions Required to Implement Statutes or Executive Orders -- Commercial Items (*May 1999) (a) The Contractor agrees to comply with the following FAR clauses, which are incorporated in this contract by reference, to implement provisions of law or executive orders applicable to acquisitions of commercial items: (1) 52.222-3, Convict Labor (E.O.11755); and (2) 52.233-3, Protest after Award (31 U.S.C 3553). (b) The Contractor agrees to comply with the FAR clauses in this paragraph (b) which the contracting officer has indicated as being incorporated in this contract by reference to implement provisions of law or executive orders applicable to acquisitions of commercial items or components: 52.219-8, Utilization of Small Business Concerns (15 U.S.C.637 (d)(2) and (3)). 52.219-25, Small Disadvantaged Business Participation Program-Disadvantaged Status and Reporting (Pub.L. 103-355, section 7102, and 10 U.S.C.2323). 52.219-26, Small Disadvantaged Business Participation Program-Incentive Subcontracting (Pub. L. 103-355, section 7102, and 10 U.S.C.2323). 52.222-26, Equal Opportunity (E.O.11246). 52.222-35, Affirmative Action for Disabled Veterans and Veterans fo the Vietnam Era (38 U.S.C.4212). 52.222-36, Affirmative Action for Workers with Disabilities (29 U.S.C.793). 52.222-37, Employment Reports on Disabled Vertans and Veterans of the Vietnam Era (38 U.S.C.4212). 52.225-3, Buy American Act -- Supplies (41 U.S.C.10). 52.222-9, Buy American Act -- Trade Agreements Act -- Balance of Payments Program (41 U.S.C.10, 19 U.S.C.2501-2582). 52.225-21, Buy American Act -- North American Free Trade Agreement Implementation Act -- Blance of Payments Program (41 U.S.C. 10, Pub.L.103-187). Alternate I of 52.225-21. 52.232-33, Payment by Electronic Funds Transfer-Central Contractor Registration (31 U.S.C.3332). 52.232-34, Payment by Electronic Funds Transfer-Other Than Central Contractor Registration (31 U.S.C.3332). (c) Notwithstanding the requirements of the clauses in paragraph (a), (b), (c) or (d) of this clause, the Contractor is not required to include any FAR clause, other than those listed below (and as may be required by an addenda to this paragraph to establish the reasonableness of prices under Part 15), in a subcontractfor commercial items or commercial components -- 52.222-26, Equal Opportunity (E.O.11246); 52.222-35, Affirmative Action for Disabled Veterans and Veterans of the Vietnam Era (38 U.S.C.4212); 52.222-36, Affirmative Action for Workers with Disabilities (29 U.S.C.793); and 52.247-64, Preference for Privately-Owned U.S. -- Flag Commercial Vessels (46 U.S.C.1241) (flow down not required for subcontracts awarded beginning May 1, 1996). Questions regarding this acquisition must be submitted in writing no later than 03-22-99. Quotations are due by 03-25-99/ 3:00 PM PST to the address specified above and to the attention of the Bid Depository. Selection and award will be made (on an aggregate basis) to the lowest priced, technically acceptable quoter. Technical acceptability will be determined by information submitted by the quoter providing a description in sufficient detail to show that the product quoted meets the Government's requirement. Quoters must provide copies of the provision at 52.212-3, Offeror Representation and Certifications -- Commercial Items with their quote. See above for where to obtain copies of the form via the Internet. An ombudsman has been appointed -- See Internet Note "B". Prospective quoters shall notify this office of their intent to submit a quotation. It is the quoter's responsibility to monitor this site for the release of amendments (if any). Potential quoters will be responsible for downloading their own copy of this combination synopsis/solicitation and amendments (if any). See Note(s) 1 and B. Any referenced notes can be viewed at the following URL: http://genesis.gsfc.nasa.gov/nasanote.html. Posted 03/18/99 (D-SN310268). (0077)

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