Enhancement of Heat Transfer over Spatial Stationary and Moving Sinusoidal Wavy Wall: A Numerical Analysis
Résumé
Heat transfer phenomena are numerically studied with standing waves inside the tubes for stationary and moving sinusoidal wavy walls. Effects of spatial wavelengths (lambda = 1/2, 2/3, 1 and 2 mm), Reynolds number (1-120), frequency (0-60 Hz) and amplitude (1%-20% of tube diameter, d) on heat transfer and pressure drop are studied. For stationary wall case, upon increasing the number of sine waves, the Nusselt number starts to decrease; the associated pressure drop and friction factor increases very rapidly at highest value of amplitude. Heat transfer enhancement characteristics on a moving sinusoidal wavy-walled tube with imposed frequency (0
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Physique [physics]Olivier Pouliquen : Connectez-vous pour contacter le contributeur
https://hal.science/hal-01459947
Soumis le : mardi 7 février 2017-15:22:07
Dernière modification le : lundi 29 janvier 2024-16:38:14
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Identifiants
- HAL Id : hal-01459947 , version 1
- DOI : 10.4028/www.scientific.net/DDF.326-328.341
Citer
Prashant Kumar, Frédéric Topin, Lounès Tadrist. Enhancement of Heat Transfer over Spatial Stationary and Moving Sinusoidal Wavy Wall: A Numerical Analysis. DIFFUSION IN SOLIDS AND LIQUIDS VII, 2012, Unknown, Unknown Region. pp.341-347, ⟨10.4028/www.scientific.net/DDF.326-328.341⟩. ⟨hal-01459947⟩
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