%0 Journal Article 
%A Crespí Llorens, Damián
%A Vicente, Pedro
%A Viedma Robles, Antonio
%T Generalized Reynolds number and viscosity definitions for non-Newtonian fluid flow in ducts of non-uniform cross-section.
%D 2015
%@ 0894-1777
%U http://hdl.handle.net/10317/5509
%X This work presents and experimental study of the generalization method
of the Reynolds number and the viscosity of pseudoplastic fluid flow in ducts
of non-uniform cross-section. This method will permit to reduce 1 degree of
freedom of hydrodynamical and thermal problems in those ducts. A review
of the state of the art has been undertaken and the generalization equation
proposed for ducts of uniform cross section has been used as a starting point.
The results obtained with this equation have not been found satisfactory and
a new one has been proposed.
Specifically, the procedure has been developed for two models of scraped
surface heat exchanger with reciprocating scrapers. For both models, the
scraper consists of a concentric rod inserted in each tube of the heat ex-
changer, mounting an array of plugs that fit the inner tube wall. The two
models studied differ in the design of the plug.
The procedure to perform the generalization method out of experimental
data is accurately detailed in the present document.
%K Mecánica de Fluidos
%K Generalized Reynolds number
%K Viscosity
%K Non Newtonian
%K Power Law
%K Non-uniform cross-section
%~ GOEDOC, SUB GOETTINGEN