Flow characteristics in horizontal pneumatic conveyance at low fluid velocities—3: additional pressure drop and the friction factor
In this paper, a fundamental equation for the friction factor of an additional pressure drop due to solid particles is first derived based on the observed flow pattern of solid particles reported in part 1 on a fully developed flow at low fluid velocities in horizontal pipes. Next, an empirical equa...
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| Published in | Advanced powder technology : the international journal of the Society of Powder Technology, Japan Vol. 6; no. 4; pp. 317 - 324 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
01.01.1995
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| Online Access | Get full text |
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| Summary: | In this paper, a fundamental equation for the friction factor of an additional pressure drop due to solid particles is first derived based on the observed flow pattern of solid particles reported in part 1 on a fully developed flow at low fluid velocities in horizontal pipes. Next, an empirical equation for the friction factor is obtained by the substitution of the parameter of the gravitational force and the velocity ratio of particles to fluid determined in part 2 into the foregoing equation. More than 95% of the values calculated by the equation fall within ± 20% of the present experimental values. |
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| ISSN: | 0921-8831 1568-5527 |
| DOI: | 10.1016/S0921-8831(08)60521-X |