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    Heat Transfer and Pressure Drop Measurement for Square Channels with V-shape Ribs at High Reynolds Numbers

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    ALKHAMIS-THESIS.pdf (754.7Kb)
    Date
    2010-10-12
    Author
    Alkhamis, Nawaf Yahya
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    Abstract
    In previous studies, the thermal performance of ribbed channels was studied for Reynolds numbers up to 100,000 with different rib shapes. In more recent studies, the thermal performance of ribbed channels was studied up to Reynolds numbers of 400,000 for angled ribs to cover the range of internal cooling inside land-based gas turbines. Previous studies also show that the thermal performance of V-shaped ribs is better than the angled ribs. In this study, the Reynolds number from 30,000 to 400,000 is studied with V-shaped ribs. The blockage ratio e/D is 0.1, 0.15, and 0.18 and spacing ratio P/e is 5, 7.5, and 10. The results show that the Nusselt number enhancement decreases when the Reynolds number increases. The friction factor is found to be independent of The Reynolds number. The thermal performance decreases when the Reynolds number increases. Correlations for the Nusselt number and the friction factor as function of Re, e/D, and P/e are developed.
    URI
    http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-7053
    Subject
    channel flow
    V-shape rib
    Collections
    • Electronic Theses, Dissertations, and Records of Study (2002– )
    Citation
    Alkhamis, Nawaf Yahya (2009). Heat Transfer and Pressure Drop Measurement for Square Channels with V-shape Ribs at High Reynolds Numbers. Master's thesis, Texas A&M University. Available electronically from http : / /hdl .handle .net /1969 .1 /ETD -TAMU -2009 -08 -7053.

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