Fluid Flow Phenomena in Dusty Air

[+] Author and Article Information
M. P. Boyce

School of Mechanical Engineering, Texas A&M University, College Station, Texas

E. F. Blick

School of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, Okla.

J. Basic Eng 92(3), 495-502 (Sep 01, 1970) (8 pages) doi:10.1115/1.3425045 History: Received August 01, 1969; Online October 27, 2010


The purpose of this study was to obtain extensive experimental data on the effect of skin-friction drag by suspending solid particles in air. The investigation was divided into two parts: The first study consisted of obtaining extensive experimental data on the pressure gradients (which are proportional to skin friction) encountered in circular pipes when a mixture of air with solid particles suspended in it flows through the pipe. The second part deals with the skin friction as measured on a flat plate placed flush with the floor of a wind tunnel having a dusty sub-layer. These studies involved a large range of Reynolds numbers, particle sizes, and weight-flow ratios. A theory is also presented to try and explain some of the complex flow phenomena encountered in a two-phase flow system.

Copyright © 1970 by ASME
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