PRESSURE DROP PREDICTION WITH AN ANALYTICAL STRUCTURE-PROPERTY MODEL FOR FLUID THROUGH POROUS MEDIA

Guangyu Li, Yiyong Huang (), Wei Han (), Zongyu Wu () and Yanjie Yang ()
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Guangyu Li: School of Aircraft Engineering, Nanchang Hangkong University, Nanchang, Jiangxi 330063, P. R. China
Yiyong Huang: ��National Innovation Institute of Defense Technology, Chinese Academy of Military Science, Beijing 100000, P. R. China
Wei Han: ��National Innovation Institute of Defense Technology, Chinese Academy of Military Science, Beijing 100000, P. R. China
Zongyu Wu: ��College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, P. R. China
Yanjie Yang: ��National Innovation Institute of Defense Technology, Chinese Academy of Military Science, Beijing 100000, P. R. China

FRACTALS (fractals), 2021, vol. 29, issue 07, 1-7

Abstract: Based on the statistical geometry theory and the fractal theory, a theoretical model to predict the pressure drop of fluid flowing through porous media has been derived in this work. This model is expressed as a function of specific surface, porosity, tortuosity, the pore fractal dimension, maximum pore size, which have clear physical meaning. To verify this model, experiments have been carried out with air using glass beads of three samples. For each sample, the present model fits the experimental data well. Besides, a comparison between the Ergun equation and present model has been made, the result shows that the present model fits the experimental data much better than the Ergun equation and has good accuracy in the range of 200 < Re < 1000.

Keywords: Flow Resistance; Fractal; Statistical Geometry; Porous Media (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1142/S0218348X2150184X

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