Numerical Simulation of Non-Equilibrium Two-Phase Wet Steam Flow through an Asymmetric Nozzle
The present study reported of the numerical investigation of a high-speed wet steam flow through an asymmetric nozzle. The spontaneous non-equilibrium homogeneous condensation of wet steam was numerically modeled based on the classical nucleation theory and droplet growth rate equation combined with...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-11-01
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| Series: | Fluids |
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| Online Access: | https://www.mdpi.com/2311-5521/2/4/63 |
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| author | Miah Md Ashraful Alam Manabu Takao Toshiaki Setoguchi |
| author_facet | Miah Md Ashraful Alam Manabu Takao Toshiaki Setoguchi |
| author_sort | Miah Md Ashraful Alam |
| collection | DOAJ |
| description | The present study reported of the numerical investigation of a high-speed wet steam flow through an asymmetric nozzle. The spontaneous non-equilibrium homogeneous condensation of wet steam was numerically modeled based on the classical nucleation theory and droplet growth rate equation combined with the field conservations within the computational fluid dynamics (CFD) code of ANSYS Fluent 13.0. The equations describing droplet formations and interphase change were solved sequentially after solving the main flow conservation equations. The calculations were carried out assuming the flow two-dimensional, compressible, turbulent, and viscous. The SST k-ω model was used for modeling the turbulence within an unstructured mesh solver. The validation of numerical model was accomplished, and the results showed a good agreement between the numerical simulation and experimental data. The effect of spontaneous non-equilibrium condensation on the jet and shock structures was revealed, and the condensation shown a great influence on the jet structure. |
| first_indexed | 2024-12-21T21:11:37Z |
| format | Article |
| id | doaj.art-6191ca335a434038abe311a037d189fc |
| institution | Directory Open Access Journal |
| issn | 2311-5521 |
| language | English |
| last_indexed | 2024-12-21T21:11:37Z |
| publishDate | 2017-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fluids |
| spelling | doaj.art-6191ca335a434038abe311a037d189fc2022-12-21T18:50:07ZengMDPI AGFluids2311-55212017-11-01246310.3390/fluids2040063fluids2040063Numerical Simulation of Non-Equilibrium Two-Phase Wet Steam Flow through an Asymmetric NozzleMiah Md Ashraful Alam0Manabu Takao1Toshiaki Setoguchi2Department of Mechanical Engineering, Matsue National College of Technology, Matsue 690-8518, JapanDepartment of Mechanical Engineering, Matsue National College of Technology, Matsue 690-8518, JapanInstitute of Ocean Energy, Saga University, Saga 840-8502, JapanThe present study reported of the numerical investigation of a high-speed wet steam flow through an asymmetric nozzle. The spontaneous non-equilibrium homogeneous condensation of wet steam was numerically modeled based on the classical nucleation theory and droplet growth rate equation combined with the field conservations within the computational fluid dynamics (CFD) code of ANSYS Fluent 13.0. The equations describing droplet formations and interphase change were solved sequentially after solving the main flow conservation equations. The calculations were carried out assuming the flow two-dimensional, compressible, turbulent, and viscous. The SST k-ω model was used for modeling the turbulence within an unstructured mesh solver. The validation of numerical model was accomplished, and the results showed a good agreement between the numerical simulation and experimental data. The effect of spontaneous non-equilibrium condensation on the jet and shock structures was revealed, and the condensation shown a great influence on the jet structure.https://www.mdpi.com/2311-5521/2/4/63compressible flowheat releasenon-equilibrium condensationshock wavesupersonic |
| spellingShingle | Miah Md Ashraful Alam Manabu Takao Toshiaki Setoguchi Numerical Simulation of Non-Equilibrium Two-Phase Wet Steam Flow through an Asymmetric Nozzle Fluids compressible flow heat release non-equilibrium condensation shock wave supersonic |
| title | Numerical Simulation of Non-Equilibrium Two-Phase Wet Steam Flow through an Asymmetric Nozzle |
| title_full | Numerical Simulation of Non-Equilibrium Two-Phase Wet Steam Flow through an Asymmetric Nozzle |
| title_fullStr | Numerical Simulation of Non-Equilibrium Two-Phase Wet Steam Flow through an Asymmetric Nozzle |
| title_full_unstemmed | Numerical Simulation of Non-Equilibrium Two-Phase Wet Steam Flow through an Asymmetric Nozzle |
| title_short | Numerical Simulation of Non-Equilibrium Two-Phase Wet Steam Flow through an Asymmetric Nozzle |
| title_sort | numerical simulation of non equilibrium two phase wet steam flow through an asymmetric nozzle |
| topic | compressible flow heat release non-equilibrium condensation shock wave supersonic |
| url | https://www.mdpi.com/2311-5521/2/4/63 |
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