High-order compact difference algorithm on half-staggered meshes for low Mach number flows

A Tyliszczak - Computers & Fluids, 2016 - Elsevier
The paper presents a solution algorithm for variable density non-isothermal flows based on
a high-order compact difference approximation combined with the projection method …

Physical modeling of simultaneous heat and mass transfer: species interdiffusion, Soret effect and Dufour effect

N Jiang, E Studer, B Podvin - International Journal of Heat and Mass …, 2020 - Elsevier
In problems involving simultaneous heat and mass transfer there exist coupling between
these phenomena: temperature gradient may cause mass flux (Soret effect) and …

[HTML][HTML] Development of unsteady natural convection in a square cavity under large temperature difference

X Wen, LP Wang, Z Guo - Physics of Fluids, 2021 - pubs.aip.org
To investigate how the nonuniform fluid density distribution caused by large temperature
variations affects the development of unsteady natural convection, we perform a series of …

Designing a consistent implementation of the discrete unified gas-kinetic scheme for the simulation of three-dimensional compressible natural convection

X Wen, LP Wang, Z Guo - Physics of Fluids, 2021 - pubs.aip.org
Discrete unified gas-kinetic scheme (DUGKS) has been developed as a robust and accurate
approach for thermal compressible flow simulations; however, designing an efficient and …

Investigation of compressible flow under low Mach number in an enclosed square cavity with a novel non-Boussinesq algorithm

J Zhang, Y Wu, N Gui, X Yang, J Tu, S Jiang - Physics of Fluids, 2023 - pubs.aip.org
Natural convection is widely observed in various scales of natural phenomena and industrial
applications. The low Mach number (ie, low-velocity) natural convection, especially under …

Effects of variable air properties on transient natural convection for large temperature differences

JM Armengol, FC Bannwart, J Xamán… - International Journal of …, 2017 - Elsevier
This paper aims to study the effects of air variable properties in the transient case of the
classical differentially heated square cavity problem. A SIMPLE algorithm using a low Mach …

A comparative study of high‐order variable‐property segregated algorithms for unsteady low Mach number flows

R Knikker - International journal for numerical methods in fluids, 2011 - Wiley Online Library
In this paper, five different algorithms are presented for the simulation of low Mach flows with
large temperature variations, based on second‐order central‐difference or fourth‐order …

Incompressible flows and the Boussinesq approximation: 50 years of CFD

M Lappa - Comptes Rendus. Mécanique, 2022 - comptes-rendus.academie-sciences …
We offer a synthetic exposition on the state of the art for Computational Fluid Dynamics
(CFD) relevant to the Navier–Stokes equations with the Boussinesq approximation …

Benchmarked simulations of natural convection airflow in a square cavity

SR Sondur, B Meuris, AM Mescher - Numerical Heat Transfer, Part …, 2023 - Taylor & Francis
An open-source code, OpenFOAM, and two commercial finite volume packages are
benchmarked for accuracy and convergence speed in solving steady natural convection …

An improved discrete unified gas kinetic scheme for simulating compressible natural convection flows

X Wen, LP Wang, Z Guo, J Shen - Journal of Computational Physics: X, 2021 - Elsevier
Discrete unified gas-kinetic scheme (DUGKS) has been developed recently as a general
method for simulating flows at all Knudsen numbers. In this study, we extend DUGKS to …