Development and validation of a Riemann solver in OpenFOAM® for non-ideal compressible fluid dynamics
Article
Article Title | Development and validation of a Riemann solver in OpenFOAM® for non-ideal compressible fluid dynamics |
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ERA Journal ID | 41540 |
Article Category | Article |
Authors | Qi, Jianhui, Xu, Jinliang, Han, Kuihua and Jahn, Ingo H. J. |
Journal Title | Engineering Applications of Computational Fluid Mechanics |
Journal Citation | 16 (1), pp. 116-140 |
Number of Pages | 25 |
Year | 2022 |
Place of Publication | Hong Kong |
ISSN | 1994-2060 |
1997-003X | |
Digital Object Identifier (DOI) | https://doi.org/10.1080/19942060.2021.2002723 |
Web Address (URL) | https://www.tandfonline.com/doi/full/10.1080/19942060.2021.2002723 |
Abstract | Recently, there is an increased interest in supercritical CO2 and organic Rankine cycles (ORC) for their ability to achieve higher thermodynamic efficiency. However, the non-ideal gas thermodynamic in these cycles may affect the flow properties critically, necessitating the research of non-ideal compressible fluid dynamics (NICFD). Thus, simulation tools that can accurately predict fluid flows with NICFD are significant. This study presents a new approximation Riemann solver in OpenFOAM for NICFD. The new solver uses a real-gas (look-up table based) approximate Riemann flux calculator (modified from HLLC ALE flux calculator) through adding a new thermodynamic library tightly coupled with the OpenFOAM®. To validate the solver, three cases are presented, including a NASA transonic nozzle operating with air, to confirm the ability to correctly simulate the transonic flow phenomena and the shock waves; the VKI 2D cascade operated with MDM to assess the ability in simulating non-ideal gas flows typically to industrial applications; and the dense gas flow (MD4M) passing a backward ramp to illustrate the ability of the flux calculator and look-up table mechanism that can work well in the non-ideal region of fluid properties. This study can benefit future engineering applications of computational fluid mechanics of NICFD and the OpenFOAM community. |
Keywords | OpenFOAM; compressible flow; Riemann solver; look-up table equation of state; non-ideal compressible fluid dynamics |
ANZSRC Field of Research 2020 | 4012. Fluid mechanics and thermal engineering |
4017. Mechanical engineering | |
Byline Affiliations | Shandong University, China |
North China Electric Power University, China | |
University of Queensland |
https://research.usq.edu.au/item/w5x79/development-and-validation-of-a-riemann-solver-in-openfoam-for-non-ideal-compressible-fluid-dynamics
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Development and validation of a Riemann solver in OpenFOAM for non ideal compressible fluid dynamics.pdf | ||
License: CC BY 4.0 | ||
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