Document Type
Thesis
Date of Award
5-31-1986
Degree Name
Master of Science in Chemical Engineering - (M.S.)
Department
Chemical Engineering, Chemistry and Environmental Science
First Advisor
Wing T. Wong
Second Advisor
Chen-Chong Lin
Third Advisor
Richard Clyde Parker
Abstract
Taylor-Aris dispersion theory is extended to the laminar tube flow of Carreau model fluids and Ellis model fluids and the results are compared with those of power law fluids. It is found that Carreau and Ellis models are more appropriate than power-law model, especially at low pressure gradient.
An exact solution to the unsteady convective diffusion equation in fully developed laminar flow in tube is obtained by applying the generalized dispersion theory of Gill and Sankarasubramanian for Ellis model. The results are compared with those obtained by Booras and Krantz for power-law model. The most interesting result of this work is that the power law is valid only at high shear stress, whereas Ellis model allows the prediction of dispersion coefficient and meansolute distribution over much wider range of external pressure gradient.
Recommended Citation
Huang, Yeong-Hua, "Dispersion in the laminar flow of Ellis model fluids through straight tubes" (1986). Theses. 1994.
https://digitalcommons.njit.edu/theses/1994
