Numerical study with OpenFOAM on heat conduction problems in heterogeneous media

Zhang, Kun; Wang, Cheng-An; Tan, Jianyu

doi:10.1016/j.ijheatmasstransfer.2018.04.038

Cited by 10 publications

(2 citation statements)

References 19 publications

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“…Matrix-free LU-SGS implicit scheme is widely used to solve a linear system because of its low numerical complexity and modest memory requirements [10].…”

Section: Icdb (Implicit Coupled Density-based) Solvermentioning

confidence: 99%

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Numerical Simulation Using a Modified Solver within OpenFOAM for Compressible Viscous Flows

Ghazanfari

Salehi

Keshtkar

et al. 2020

TECM

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In this work, we attempted to develop an Implicit Coupled Density-Based (ICDB) solver using LU-SGS algorithm based on the AUSM+ up scheme in OpenFOAM. Then sonicFoam solver was modified to include viscous dissipation in order to improve its capability to capture shock wave and aerothermal variables. The details of the ICDB solver as well as key implementation details of the viscous dissipation to energy equation were introduced. Finally, two benchmark tests of hypersonic airflow over a flat plate and a 2-D cylinder were simulated to show the accuracy of ICDB solver. To verify and validate the ICDB solver, the obtained results were compared with other published experimental data. It was revealed that ICDB solver has good agreement with the experimental data. So it can be used as reference in other studies. It was also observed that ICDB solver enjoy advantages such as high resolution for contact discontinuity and low computational time. Moreover, to investigate the performance of modified sonicFoam, a case study of airflow over the prism was considered. Then the results of the modified sonicFoam were compared with the ICDB, rhoCentralFoam and sonicFoam solvers. The results showed that the modified sonicFoam solver possesses higher accuracy and lower computational time in comparison with the sonicFoam and rhoCentralFoam solvers, respectively.

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“…Matrix-free LU-SGS implicit scheme is widely used to solve a linear system because of its low numerical complexity and modest memory requirements [10].…”

Section: Icdb (Implicit Coupled Density-based) Solvermentioning

confidence: 99%

“…Chun et al described the details of implementation of LU-SGS method in OpenFOAM [10]. Furst developed an implicit semi-coupled solver [1], and we attempt to develop an implicit full-coupled solver using GMRES method as an iterative method for numerical solution of a nonsymmetrical system of linear equations.…”

Section: Icdb (Implicit Coupled Density-based) Solvermentioning

confidence: 99%