The influence of pore size variation on the pressure drop in open-cell foams

2015 ◽  
Vol 87 ◽  
pp. 650-655 ◽  
Author(s):  
Jakub Skibinski ◽  
Karol Cwieka ◽  
Tadeusz Kowalkowski ◽  
Bartlomiej Wysocki ◽  
Tomasz Wejrzanowski ◽  
...  
Keyword(s):  
Pressure Drop ◽  
Pore Size ◽  
Size Variation ◽  
Open Cell ◽  
Open Cell Foams

scholarly journals Incorporation of the Pore Size Variation to Modeling of the Elastic Behavior of Metallic Open-Cell Foams

2017 ◽  
Vol 62 (1) ◽  
pp. 259-262 ◽  
Author(s):  
K. Ćwieka ◽  
T. Wejrzanowski ◽  
K. J. Kurzydłowski
Keyword(s):  
Pore Size ◽  
Size Variation ◽  
Elastic Behavior ◽  
Design Stage ◽  
Metallic Foams ◽  
Compression Tests ◽  
Voronoi Tessellations ◽  
Open Cell ◽  
Open Cell Foams ◽  
Uniform Pore Size

Abstract In the present paper we present the approach for modeling of the elastic behavior of open-cell metallic foams concerning non-uniform pore size distribution. This approach combines design of foam structures and numerical simulations of compression tests using finite element method (FEM). In the design stage, Laguerre-Voronoi tessellations (LVT) were performed on several sets of packed spheres with defined variation of radii, bringing about a set of foam structures with porosity ranging from 74 to 98% and different pore size variation quantified by the coefficient of pore volume variation, CV(V), from 0.5 to 2.1. Each structure was numerically subjected to uni-axial compression test along three directions within the elastic region. Basing on the numerical response, the effective Young’s modulus, Eeff, was calculated for each structure. It is shown that the Eeff is not only dependent on the porosity but also on the pore size variation.

scholarly journals Investigation of pressure drop in 3D replicated open-cell foams: Coupling CFD with experimental data on additively manufactured foams

2019 ◽  
Vol 377 ◽  
pp. 120123 ◽  
Author(s):  
Mauro Bracconi ◽  
Matteo Ambrosetti ◽  
Obinna Okafor ◽  
Victor Sans ◽  
Xun Zhang ◽  
...  
Keyword(s):  
Experimental Data ◽  
Pressure Drop ◽  
Open Cell ◽  
Open Cell Foams

Droplet Retention Time and Pressure Drop in SiSiC Open-Cell Foams Used as Droplet Separation Devices: A Numerical Approach

2019 ◽  
Vol 59 (9) ◽  
pp. 4093-4107 ◽  
Author(s):  
Jesus Nain Camacho Hernandez ◽  
Gregory Lecrivain ◽  
Markus Schubert ◽  
Uwe Hampel
Keyword(s):  
Pressure Drop ◽  
Retention Time ◽  
Numerical Approach ◽  
Open Cell ◽  
Open Cell Foams ◽  
Separation Devices

Analysis of Heat Transfer and Pressure Drop Through Idealized Open Cell Ceramic Foams: Comparison Between Kelvin and Weaire-Phelan Cell Structures

2013 ◽  
Author(s):  
N. Bianco ◽  
S. Cunsolo ◽  
W. K. S. Chiu ◽  
V. Naso ◽  
A. Migliozzi ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Pressure Drop ◽  
Open Source Software ◽  
Surface Evolver ◽  
Open Cell ◽  
Ceramic Foams ◽  
Cell Structures ◽  
Cell Architecture ◽  
Cell Dimensions ◽  
Open Cell Foams

In the applications of metal foams, the knowledge of the thermal transport properties is of primary importance. Thermal properties of a foam heavily depend on its microstructure. However, the influence of some geometric characteristics of the foam cells on their properties is far from being understood. Foam models are promising tools to study the above said effects. The effect of the cell architecture on heat transfer and pressure drop in open cell foams is investigated numerically using two foam models. The Kelvin and the Weaire-Phelan foam models are developed in an open source software “Surface Evolver”. Heat transfer and pressure drop in samples with different porosities and cell dimensions are studied using COMSOL® Multiphysics. Finally, a comparison between the numerical results obtained from two foam models is carried out in order to evaluate the feasibility to substitute the Weaire-Phelan foam structure, which is more complex and computationally heavier, with the simpler Kelvin foam representation.

Periodic open-cell foams: Pressure drop measurements and modeling of an ideal tetrakaidecahedra packing

2011 ◽  
Vol 66 (12) ◽  
pp. 2758-2763 ◽  
Author(s):  
Amer Inayat ◽  
Jan Schwerdtfeger ◽  
Hannsjörg Freund ◽  
Carolin Körner ◽  
Robert F. Singer ◽  
...  
Keyword(s):  
Pressure Drop ◽  
Open Cell ◽  
Open Cell Foams

Development of a new pressure drop correlation for open-cell foams based completely on theoretical grounds: Taking into account strut shape and geometric tortuosity

2016 ◽  
Vol 287 ◽  
pp. 704-719 ◽  
Author(s):  
Amer Inayat ◽  
Michael Klumpp ◽  
Markus Lämmermann ◽  
Hannsjörg Freund ◽  
Wilhelm Schwieger
Keyword(s):  
Pressure Drop ◽  
Open Cell ◽  
Open Cell Foams

scholarly journals Influence of Pore Size Variation on Thermal Conductivity of Open-Porous Foams

Materials ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 2017 ◽  
Author(s):  
Jakub Skibinski ◽  
Karol Cwieka ◽  
Samih Haj Ibrahim ◽  
Tomasz Wejrzanowski
Keyword(s):  
Thermal Conductivity ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Structural Parameters ◽  
Size Variation ◽  
Design Procedure ◽  
Open Cell ◽  
Open Cell Foam ◽  
Analytical Formulas

This study addresses the influence of pore size variation on the effective thermal conductivity of open-cell foam structures. Numerical design procedure which renders it possible to control chosen structural parameters has been developed based on characterization of commercially available open-cell copper foams. Open-porous materials with various pore size distribution were numerically designed using the Laguerre–Voronoi Tessellations procedure. Heat transfer through an isolated structure was simulated with the finite element method. The results reveal that thermal conductivity is strongly related to porosity, which is in agreement with the literature. The influence of pore size distribution has also been observed and compared with analytical formulas proposed in the literature.

scholarly journals APPROPRIATE MODELS FOR SIMULATING OPEN-POROUS MATERIALS

2017 ◽  
Vol 36 (2) ◽  
pp. 107 ◽  
Author(s):  
Tomasz Wejrzanowski ◽  
Samih Haj Ibrahim ◽  
Jakub Skibinski ◽  
Karol Cwieka ◽  
Krzysztof Jan Kurzydlowski
Keyword(s):  
Porous Materials ◽  
Pore Size ◽  
Open Porosity ◽  
Diameter Distribution ◽  
Cell Diameter ◽  
Micro Computed Tomography ◽  
Open Cell ◽  
Geometrical Features ◽  
Open Cell Foams ◽  
Number Of Faces

In the present paper two representative models applied for modeling of two types of porous materials - open-cell foams and open-porosity tapes - are addressed. Algorithms presented here base on Laguerre-Voronoi tessellations (open-cell foams) and the sphere representation (open-porosity tapes) and enable creating the desired porosity and pore size distribution. The geometrical features of the models, such as: porosity, mean pore size, cell diameter distribution and number of faces per cell were compared with those obtained by 3D micro-computed tomography and good agreement was obtained.

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