STH/CFD Coupled Simulation of the Protected Loss of Flow Accident in the CIRCE-HERO Facility
The paper presents the application of a coupling methodology between Computational Fluid Dynamics (CFD) and System Thermal Hydraulic (STH) codes developed at the University of Pisa. The methodology was applied to the CIRCE-HERO facility in order to reproduce the recently performed experimental condi...
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MDPI AG
2020-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/20/7032 |
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| author | Pucciarelli Andrea Galleni Francesco Moscardini Marigrazia Martelli Daniele Forgione Nicola |
| author_facet | Pucciarelli Andrea Galleni Francesco Moscardini Marigrazia Martelli Daniele Forgione Nicola |
| author_sort | Pucciarelli Andrea |
| collection | DOAJ |
| description | The paper presents the application of a coupling methodology between Computational Fluid Dynamics (CFD) and System Thermal Hydraulic (STH) codes developed at the University of Pisa. The methodology was applied to the CIRCE-HERO facility in order to reproduce the recently performed experimental conditions simulating a Protected Loss Of Flow Accident (PLOFA). The facility consists of an internal loop, equipped with a fuel pin simulator and a steam generator, and an external pool. In this coupling application, the System code RELAP5 is adopted for the simulation of the internal loop while the CFD code ANSYS Fluent is used for the sake of simulating the pool. The connection between the two addressed domains is provided at the inlet and outlet section of the internal loop; a thermal coupling is also performed in order to reproduce the observed thermal stratification phenomenon. The obtained results are promising and a good agreement was obtained for both the mass flow rates and temperature measurements. Capabilities and limitations of the adopted coupling technique are discussed in the present paper also providing suggestions for improvements and developments to be achieved in the frame of future applications. |
| first_indexed | 2024-03-10T15:44:45Z |
| format | Article |
| id | doaj.art-cb6242bef6014c66a91c69115ad7850b |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T15:44:45Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-cb6242bef6014c66a91c69115ad7850b2023-11-20T16:33:50ZengMDPI AGApplied Sciences2076-34172020-10-011020703210.3390/app10207032STH/CFD Coupled Simulation of the Protected Loss of Flow Accident in the CIRCE-HERO FacilityPucciarelli Andrea0Galleni Francesco1Moscardini Marigrazia2Martelli Daniele3Forgione Nicola4Department of Civil and Industrial Engineering, University of Pisa, 56126 Pisa, ItalyDepartment of Civil and Industrial Engineering, University of Pisa, 56126 Pisa, ItalyDepartment of Civil and Industrial Engineering, University of Pisa, 56126 Pisa, ItalyENEA, FSN-ING, Brasimone Research Centre, ENEA, 40032 Camugnano (Bo), ItalyDepartment of Civil and Industrial Engineering, University of Pisa, 56126 Pisa, ItalyThe paper presents the application of a coupling methodology between Computational Fluid Dynamics (CFD) and System Thermal Hydraulic (STH) codes developed at the University of Pisa. The methodology was applied to the CIRCE-HERO facility in order to reproduce the recently performed experimental conditions simulating a Protected Loss Of Flow Accident (PLOFA). The facility consists of an internal loop, equipped with a fuel pin simulator and a steam generator, and an external pool. In this coupling application, the System code RELAP5 is adopted for the simulation of the internal loop while the CFD code ANSYS Fluent is used for the sake of simulating the pool. The connection between the two addressed domains is provided at the inlet and outlet section of the internal loop; a thermal coupling is also performed in order to reproduce the observed thermal stratification phenomenon. The obtained results are promising and a good agreement was obtained for both the mass flow rates and temperature measurements. Capabilities and limitations of the adopted coupling technique are discussed in the present paper also providing suggestions for improvements and developments to be achieved in the frame of future applications.https://www.mdpi.com/2076-3417/10/20/7032liquid metalsthermal-hydraulicsCIRCE-HERO |
| spellingShingle | Pucciarelli Andrea Galleni Francesco Moscardini Marigrazia Martelli Daniele Forgione Nicola STH/CFD Coupled Simulation of the Protected Loss of Flow Accident in the CIRCE-HERO Facility Applied Sciences liquid metals thermal-hydraulics CIRCE-HERO |
| title | STH/CFD Coupled Simulation of the Protected Loss of Flow Accident in the CIRCE-HERO Facility |
| title_full | STH/CFD Coupled Simulation of the Protected Loss of Flow Accident in the CIRCE-HERO Facility |
| title_fullStr | STH/CFD Coupled Simulation of the Protected Loss of Flow Accident in the CIRCE-HERO Facility |
| title_full_unstemmed | STH/CFD Coupled Simulation of the Protected Loss of Flow Accident in the CIRCE-HERO Facility |
| title_short | STH/CFD Coupled Simulation of the Protected Loss of Flow Accident in the CIRCE-HERO Facility |
| title_sort | sth cfd coupled simulation of the protected loss of flow accident in the circe hero facility |
| topic | liquid metals thermal-hydraulics CIRCE-HERO |
| url | https://www.mdpi.com/2076-3417/10/20/7032 |
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