Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A pressure-based diffuse interface method for low-Mach multiphase flows
  with mass transfer   This study presents a novel pressure-based methodology for the efficient
numerical solution of a four-equation two-phase diffuse interface model. The
proposed methodology has the potential to simulate low-Mach flows with mass
transfer. In contrast to the classical conservative four-equation model
formulation, the adopted set of equations features volume fraction,
temperature, velocity and pressure as the primary variables. The model includes
the effects of viscosity, surface tension, thermal conductivity and gravity,
and has the ability to incorporate complex equations of state. Additionally, a
Gibbs free energy relaxation procedure is used to model mass transfer. A key
characteristic of the proposed methodology is the use of high performance and
scalable solvers for the solution of the Helmholtz equation for the pressure,
which drastically reduces the computational cost compared to analogous
density-based approaches. We demonstrate the capabilities of the methodology to
simulate flows with large density and viscosity ratios through extended
verification against a range of different test cases. Finally, the potential of
the methodology to tackle challenging phase change flows is demonstrated with
the simulation of three-dimensional nucleate boiling.

18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs