TY - JOUR
T1 - Direct Numerical Simulation of an Open-Cell Metallic Foam Through Lattice Boltzmann Method
AU - Chiappini , Daniele
AU - Bella , Gino
AU - Festuccia , Alessio
AU - Simoncini , Alessandro
JO - Communications in Computational Physics
VL - 3
SP - 707
EP - 722
PY - 2019
DA - 2019/12
SN - 18
DO - http://doi.org/10.4208/cicp.191114.270315a
UR - https://global-sci.org/intro/article_detail/cicp/13536.html
KW - LBM, DNS, porous media simulation, metallic foam characterization.
AB - <p style="text-align: justify;">In this paper Lattice Boltzmann Method (LBM) has been used in order to
perform Direct Numerical Simulation (DNS) for porous media analysis. Among the
different configurations of porous media, open cell metallic foams are gaining a key
role for a large number of applications, like heat exchangers for high performance
cars or aeronautic components as well. Their structure allows improving heat transfer
process with fruitful advantages for packaging issues and size reduction. In order
to better understand metallic foam capabilities, a random sphere generation code has
been implemented and fluid-dynamic simulations have been carried out by means
of a kinetic approach. After having defined a computational domain, the Reynolds
number influence has been studied with the aim of characterizing both pressure drop
and friction factor throughout a finite foam volume. In order to validate the proposed
model, a comparison analysis with experimental data has been carried out too.</p>