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Study on Flow Properties of Coal‐Water Paste in Pipes
Author(s) -
Meng L.,
Zhang M.,
Shen L.
Publication year - 2000
Publication title -
developments in chemical engineering and mineral processing
Language(s) - English
Resource type - Journals
eISSN - 1932-2143
pISSN - 0969-1855
DOI - 10.1002/apj.5500080311
Subject(s) - laminar flow , newtonian fluid , reynolds number , slip (aerodynamics) , mechanics , flow (mathematics) , non newtonian fluid , thermodynamics , mathematics , materials science , physics , turbulence
In this paper the similitude criterion known as generalized Reynolds number \documentclass{article}\pagestyle{empty}\begin{document}$ {\rm{Re}}_g = \frac{{\rho VD\left[ {a^{n - 1} \left( {1 - a} \right)} \right]^{1/n} }}{{K^{1/n} \tau _y^{1 - 1/n} \left( {1 - U_s /V} \right)}}f\left( a \right) $\end{document} is proposed to characterize the flow state of coal‐water paste in pipes, on the assumption of coal‐water paste as a non‐Newtonian fluid and for slip flow phenomenon in pipes. It can be used to describe the no‐slip flow of non‐Newtonian and Newtonian fluids behaving as steady‐state laminar flow in pipes. A convenient new method of determining the resistance properties of coal‐water paste is suggested.