Commercial Acquisition Department, Bldg 11, Naval Undersea Warfare Center Division, Newport, Code 59, Simonpietri Dr., Newport, RI 02841-1708

A -- BROAD AGENCY ANNOUNCEMENT FOR RESEARCH FOR NEW AND INNOVATIVE COMPUTATIONAL MODELING OF SEA WATER ELECTROMAGNETIC TURBULENCE CONTROL (EMTC). SOL BAA 976315 DUE 101797 POC N. Teasdale, Contracting Officer at (401) 841-2442 X218; FAX (401) 841-4820. WEB: Naval Undersea Warfare Center Division, Newport, http://www.npt.nuwc.navy.mil/contract/. E-MAIL: N. Teasdale, Contracting Officer, teasdale@code59.npt.nuwc.navy.mil. The Naval Undersea Warfare Center (NUWC) is seeking proposals (technical and cost) for research for new and innovative computational modeling of sea water electromagnetic turbulence control (EMTC)- a technique that has the potential to achieve a significant reduction in the frictional drag, increased heat transfer, reduced signatures (acoustic and non-acoustic) and manuevering control on vehicles or other systems operating in electrically conductive fluids. The technique is based on the interaction of electric and magnetic fields to produce a Lorentz force, and it is believed that a Lorentz field perpendicular to the wall is the most effective way to control turbulence. Several geometric arrangements of EMTC cells or tiles containing pairs of electrodes and magnets have been used to produce steady and time-varying Lorentz forces. Specific areas of interest include: 1) modeling the effect of a steady Lorentz force over a single tile on the wake of a cylindrical obstacle immediately upstream of the tile;2) modeling the three dimensional, time dependent flow over a flat plate containing a specified array of magnets and electrodes pulsed in a given sequence and power in sea water; 3) techniques and processes to measure critical elements necessary to validate computational models of the given in (2) above; 4) comparing the computational model results to the experimental data in (2) above; 5) critically assessing the computational modeling and experimental work to determine the accuracy of the computer models; 6) developing theoretical models of the underlying physics and scaling of the EMTC phenomenon; and 7) use computational and theoretical models to design a flat plate that will achieve skin friction reduction. In order to meet required schedules, anticipated timeframes for each area of interest is: (for 1)- 2 months; (for 2)- 4 months; (for 3)- 1 month; (for 4)- 2 months; (for 5)- 1 month; (for 6)- 3 months; (for 7)- 5 months. All organizations interested in participating in this procurement should submit technical and cost proposals (five copies each), to: the Commercial Acquisition Department Building 11, Naval Undersea Warfare Center Division Newport, Code 5911 Attn: Ms. Nancy Teasdale, Simonpietri Drive, Newport RI 02841-1708 by 2:00 p.m. local time on 17 OCT 1997, and citing BAA# 976315. No additional information is available, nor will a formal RFP or other solicitation regarding this announcement be issued. Proposals must be unclassified. Proposals will be evaluated per the following evaluation criteria which are listed in descending order of importance: 1) scientific merit of the proposed computational model/analyses; 2) technical competence of the offeror (including: offeror's experience in computational, theoretical and experimental fluid dynamics and EMTC; availability and competence of proposed technical personnel; availability, from any source, of necessary computer facilities; management capability); 3) importance to NUWC/Navy Programs; 4) cost realism. Note: cost realism will only be significant in proposals which have significantly under or over-estimated the cost to complete their effort. While the Government anticipates that multiple awards will be made at funding levels in the $50k to $250k range (depending on how many areas of interest are proposed by an offeror), the Government reserves the right to select for award all, some, or none of the proposals. Proposal length, exclusive or cost and pricing data, should not exceed 15 pages, and shall include an executive summary not to exceed 2 pages. Proposal format is the choice of the offeror. Foreign-owned offerors are advised that their participation is subject to foreign disclosure review; therefore, foreign-owned offerors should immediately contact the contracting point of contact if they comtemplate responding. (0259)

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