Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"entrance length"”.
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A Comprehensive Numerical Investigation of Heat Transfer Dynamics in Supercritical Carbon Dioxide Cooling
… the effects of adiabatic and thermal entrance lengths on sCO<sub>2</sub> heat transfer in horizontal tubes. The findings highlight that the choice of reference temperatures significantly impacts model validation, necessitating transparency in experimental methods. Specifying the …
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Axial variations and entry effects in a pressure screen
… are used for contaminant removal and fibre length fractionation in the production of pulp and paper products. Axial variations and entry effects in the screen are known to occur and these variations have not been adequately quantified. This thesis describes a fundamental study of the axial …
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Experimental Investigation on Heat Transfer and Pressure Loss Characteristics of Rotating Rectangular and Annular Ducts
… of rotation caused swirling, increasing the entrance length in the duct and also enhanced heat transfer. The rotation also enhanced the heat transfer in the fully developed region. The fully developed experimental data for the simplified rectangular ducts showed good correlation with that of …
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CFD studies of complex fluid flows in pipes
… the axial direction, thus, reducing the thermal entrance length by a large factor, so that much shorter pipes can be used to achieve a desired exit temperature. These effects increased with both vibration frequency and amplitude but were more sensitive to the amplitude. Higher fluid viscosities …
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Numerical Simulations in Electro-osmotic Flow
… flow with large channel diameter-to-Debye length ratios (Z). The physics of the flow field were compared between the moving wall model (MWM) and electro-osmotic flow (EOF) at Reynolds numbers of 1 and 1800, and Z > 2500. Also, Z-values between 50 and 500 were studied to investigate the …