|
CSME 2025/04
Volume 46 No.2
:
131-140
|
|
Numerical Simulation of Permeability for Novel Lattice Structures Under Various Flow Conditions
Parth Goyal a, Senthilkumar S b and Kang Shung-Wen c
aDepartment of Aerospace Engineering, SRM Institute of Science and Technology, Kattankulathur, Chennai, India – 603203
bDepartment of Aerospace Engineering, SRM Institute of Science and Technology, Kattankulathur, Chennai, India – 603203
cDepartment of Mechanical and Electro-Mechanical Engineering, Tamkang University, Tamsui Dist., New Taipei City, Taiwan (R.O.C) – 251301
|
Abstract:
Porous materials are essential in applications like impact absorption, thermal management, tissue engineering, and vibration damping, making their detailed study crucial. Key parameters in pore structure characterization include porosity, pore distribution, types, aperture size, shape, tortuosity, pore size distribution, specific surface area, and permeability. This study numerically simulates the permeability of two Triply Periodic Minimal Surfaces (TPMS) structures—Primitive and Gyroid—and two strut-based lattice structures— Diamond and Iso-truss. The analysis was conducted under steady-state conditions, with variations in porosity levels (60%, 70%, 80%, 90%), Reynolds numbers (Re) of 10, 50, 100, 150, 200, and 250, and a lateral length of 3 mm. Results indicate that higher porosity correlates with higher permeability, while increasing Re lead to higher pressure drops, reducing permeability. Among the structures, the lattice Diamond shows the highest permeability, while TPMS Primitive generally has the lowest.
|
|
Keywords: Porous Media, Permeability, Lattice structures, Porosity, Re, Lateral Length.
|
|
|
*Corresponding author; e-mail:
|
©
2025
CSME , ISSN 0257-9731
|