Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Investigating the effect of porosity on the soil water retention curve
  using the multiphase Lattice Boltzmann Method   The soil water retention curve (SWRC) is the most commonly used relationship
in the study of unsaturated soil. In this paper, the effect of porosity on the
SWRC is investigated by numerically modeling unsaturated soil using the
Shan-Chen multiphase Lattice Boltzmann Method. The shape of simulated SWRCs are
compared against that predicted by the van Genuchten model, demonstrating a
good fit except at low degrees of saturation. The simulated SWRCs show an
increase in the air-entry value as porosity decreases.

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The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an