Closure Schemes of the Momentum Equation for Porous Media   Flow
{'Code': '07020000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CBET', 'LongName': 'Div Of Chem, Bioeng, Env, & Transp Sys'}}
{'SignBlockName': 'HUSEYIN A. SEHITOGLU', 'PO_EMAI': None, 'PO_PHON': None}
A novel approach has been proposed to obtain closures for the Reynolds          stress (i.e., hydrodynamic dispersion) and the interphase drag force            terms for moderate-to-high Reynolds number flow in packed-sphere beds.          The approach is to obtain closures based on a judicial application of           the method of matched asymptotic expansions for flow over a simple              geometry (which is a sphere in this case) at different flow regimes.            The inner solution will be used to evaluate the interphase drag force           while the outer solution will be used to evaluate the Reynolds stress           terms.  With this approach, explicit expressions for these terms as an          asymptotic series of the Reynolds number can be obtained.  The                  adjustable constants in the asymptotic series, which will take into             consideration the effect of the interaction of spheres, will be                 determined by a comparison of theory and experiments on pressure drop           data.  The success of this research may open new avenues of research            for fracture media flow in petroleum and geothermal reservoirs, as well         as for flow over rod bundles in nuclear reactors.
{'FirstName': 'Ping', 'LastName': 'Cheng', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Ping Cheng', 'EmailAddress': None, 'NSF_ID': '000365378', 'StartDate': '06/15/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Hawaii', 'CityName': 'HONOLULU', 'ZipCode': '968222247', 'PhoneNumber': '8089567800', 'StreetAddress': '2425 CAMPUS RD SINCLAIR RM 1', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Hawaii', 'StateCode': 'HI', 'CONGRESSDISTRICT': '01', 'CONGRESS_DISTRICT_ORG': 'HI01', 'ORG_UEI_NUM': 'NSCKLFSSABF2', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF HAWAII', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1443', 'Text': 'FD-Fluid Dynamics'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8714705.xml'}