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The present work deals with the study of laminar and turbulent flow of Newtonian and non-Newtonian fluids flowing through helical and Archimedian spiral coils. By using a suitable viscosity expression corresponding to the shear stress prevailing at the wall, Newtonian correlations are shown to be applicable to a non-Newtonian fluid also. Relationships for spiral coils are developed from correlations for helical coils and are successfully compared with the data of Newtonian and non-Newtonian fluids. © 1980, The Society of Chemical Engineers, Japan. All rights reserved. |
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