Discussion of “Permeability Measurement of Granular Porous Materials by a Modified Falling-Head Method” by Yixun Sun, Philippe Causse, Brahim Benmokrane, and François Trochu

2022 ◽  
Vol 148 (3) ◽  
Author(s):  
G. H. Lei ◽  
S. W. Xia
Keyword(s):  
Porous Materials ◽  
Permeability Measurement

Determination of Physical Properties of Isotropic Porous Materials by Impedance Tube

2009 ◽  
Author(s):  
Sanjay Sharma ◽  
Dennis Siginer
Keyword(s):  
Porous Medium ◽  
Fluid Flow ◽  
Physical Properties ◽  
Porous Materials ◽  
Low Frequency ◽  
Permeability Measurement ◽  
Impedance Tube ◽  
Acoustical Properties ◽  
Acoustical Method

Simulation of fluid flow in porous materials depends upon the accuracy of permeability measurement. This study details the development of an acoustical method to determine permeability of porous medium. Standardized acoustical testing for low frequency using impedance tube is carried out to determine the acoustical properties of the fibers. Physical properties of porous medium are determined by reverse calculation from the acoustical properties. The acoustical method is validated by comparing the measured acoustical properties of the porous medium by the analytical method. A variety of foams and fibers are tested using this methodology.

Permeability Measurement of Granular Porous Materials by a Modified Falling-Head Method

2020 ◽  
Vol 146 (9) ◽  
pp. 04020101 ◽  
Author(s):  
Yixun Sun ◽  
Philippe Causse ◽  
Brahim Benmokrane ◽  
François Trochu
Keyword(s):  
Porous Materials ◽  
Permeability Measurement

Permeability Measurement of Orthotropic Fibers Under an Acoustic Force Field

2009 ◽  
Author(s):  
Sanjay Sharma ◽  
Dennis Siginer
Keyword(s):  
Absorption Coefficient ◽  
Physical Properties ◽  
Force Field ◽  
Porous Materials ◽  
Acoustic Method ◽  
Orthotropic Medium ◽  
Frequency Range ◽  
Permeability Measurement ◽  
Acoustical Properties ◽  
Transverse Permeability

Using the validated acoustic method of determining physical properties of porous materials, acoustical properties of the orthotropic medium is used to predict longitudinal and transverse permeability. Measurement of samples in the impedance tube is conducted using ASTM E 1050 for a frequency range of 50 Hz to 6.4 KHz. The acoustical method is shown to compute longitudinal and transverse permeability for various porosity levels. The method describes permeability prediction for carbon, glass and hybrid lay ups. Longitudinal permeability calculated from the absorption coefficient of sized and unsized fibers is found to be the same in contrast to the flow methods.

Porous materials from cellulose nanocrystal and mxene surfactants at the oil/water interface

2020 ◽  
Author(s):  
Bingqing qian ◽  
Haiqiao Wang ◽  
Dong Wang ◽  
Hao-Bin Zhang ◽  
Jessica Wu ◽  
...  
Keyword(s):  
Porous Materials ◽  
Cellulose Nanocrystal ◽  
Water Interface ◽  
Oil Water

Effect of structure of porous materials on their self-cleaning from a liquid pha

2018 ◽  
Vol 4 (4) ◽  
pp. 52-63
Author(s):  
V. Yu. Shumskaya ◽  
S. F. Zhandarov ◽  
L. A. Kalinin ◽  
L. F. Ivanov ◽  
V. V. Snezhkov ◽  
...  
Keyword(s):  
Porous Materials ◽  
Self Cleaning ◽  
Effect Of Structure
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