Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multiphase flows simulation with the Smoothed Particle Hydrodynamics
  method   This work presents a new multiphase SPH model that includes the shifting
algorithm and a variable smoothing length formalism to simulate multi-phase
flows with accuracy and proper interphase management. The implementation was
performed in the DualSPHysics code and validated for different canonical
experiments, such as the single-phase and multiphase Poiseuille and Couette
test cases. The method is accurate even for the multiphase case for which two
phases are simulated. The shifting algorithm and the variable smoothing length
formalism has been applied in the multiphase SPH model to improve the numerical
results at the interphase even when it is highly deformed and non-linear
effects become important. The obtained accuracy in the validation tests and the
good interphase definition in the instability cases indicate an important
improvement in the numerical results compared with single-phase and multiphase
models where the shifting algorithm and the variable smoothing length formalism
are not applied.

31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org