U.S. Nuclear Regulatory Commission, Division of Contracts, Attn: Linda Wise MS-T-7I2, Washington, D.C. 20555

A -- COMPUTATIONAL TWO-PHASE FLOW DYNAMICS SOL RES-98-053 POC Contact: Sharlene McCubbin, Contract Specialist, 301-415-6565, Mary H. Mace, Contracting Officer ((301)415-7314 The U.S. Nuclear Regulatory Commission (NRC) proposes to modify a contract entitled "Computational Two-Phase Flow Dynamics and Heat Transfer for Analysis of LWR Transients" with the University of Florida, NRC-04-98-053. The initial contract was awarded on the basis of the University of Florida's response to an NRC Broad Agency Announcement entitled, "Broad Agency Announcement for Thermal Hydraulic Research." The objective of this modification is to develop methods for interface tracking in two-phase flows which will allow the simulation of LWR transients. Professor Samim Anghaie of the University of Florida has developed a unique two phase interface tracking technique based upon an energy formulation. Under the current NRC contract, he is developing this technique for two-dimensional flow conditions and some limited three-dimensional studies. Professor Anghaie developed the algorithm for this method and his intimate knowledge of this technique allows him to carry out this continuing research in an efficient and effective manner which is advantageous to the NRC. The period of performance for this modification is for two years. Standard Industrial classification code 8733 applies. This is a notice of intent to modify the contract only. A solicitation document does not exist. Telephonic responses and responses providing insufficient information for evaluation will not be considered. See Note 22.***** Posted 12/23/98 (W-SN283072). (0357)

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