Impact of the beam pressure on the free surface of the liquid lithium target of fusion neutron sources
Accelerator-driven fusion neutron sources, e.g. Advanced Fusion Neutron Source (A-FNS) and DEMO Oriented Neutron Source (IFMIF-DONES), are being designed, based on the achievements and lessons learnt from the IFMIF/EVEDA project. The purpose of the study is to analytically evaluate the deformation o...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2018-05-01
|
| Series: | Nuclear Materials and Energy |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352179117302089 |
| _version_ | 1818066259811500032 |
|---|---|
| author | Makoto M. Nakamura Hiroo Kondo Takuji Kanemura Makoto Oyaidzu Kentaro Ochiai Hiromitsu Suzuki |
| author_facet | Makoto M. Nakamura Hiroo Kondo Takuji Kanemura Makoto Oyaidzu Kentaro Ochiai Hiromitsu Suzuki |
| author_sort | Makoto M. Nakamura |
| collection | DOAJ |
| description | Accelerator-driven fusion neutron sources, e.g. Advanced Fusion Neutron Source (A-FNS) and DEMO Oriented Neutron Source (IFMIF-DONES), are being designed, based on the achievements and lessons learnt from the IFMIF/EVEDA project. The purpose of the study is to analytically evaluate the deformation of the lithium free surface, potentially created by the intense beam injection. We have developed a two-dimensional (2-D) fluid model of the “beam-on” target of an IFMIF-type fusion neutron source by extending the phenomenological 2-D model of the Li target flow of the EVEDA Lithium Test Loop (ELTL). We have derived, from the newly developed model, a practical and analytical formula of the thickness of the “beam-on” target in the flow direction with accounting for the beam injection effect. We have also evaluated the thickness of the beam-on target of A-FNS as an example of application of the derived formula. The evaluation indicates that under the reference design conditions of the accelerator and beam-on Li target of A-FNS, the deformation of the free surface of the target by the beam injection is negligibly small. The analytical results presented here may be used for a benchmark of more complicated CFD simulation for the “beam-on” target design of IFMIF-type fusion neutron sources like A-FNS and IFMIF-DONES. Keywords: IFMIF-type fusion neutron source, Design, Liquid lithium target, Beam injection, Free surface, Modeling |
| first_indexed | 2024-12-10T15:04:57Z |
| format | Article |
| id | doaj.art-ca40591e912547f2a34f2289bc517a62 |
| institution | Directory Open Access Journal |
| issn | 2352-1791 |
| language | English |
| last_indexed | 2024-12-10T15:04:57Z |
| publishDate | 2018-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Materials and Energy |
| spelling | doaj.art-ca40591e912547f2a34f2289bc517a622022-12-22T01:44:05ZengElsevierNuclear Materials and Energy2352-17912018-05-01152731Impact of the beam pressure on the free surface of the liquid lithium target of fusion neutron sourcesMakoto M. Nakamura0Hiroo Kondo1Takuji Kanemura2Makoto Oyaidzu3Kentaro Ochiai4Hiromitsu Suzuki5Corresponding author.; Rokkasho Fusion Institute, National Institutes for Quantum and Radiological Science and Technology, Rokkasho, Aomori 039-3212, JapanRokkasho Fusion Institute, National Institutes for Quantum and Radiological Science and Technology, Rokkasho, Aomori 039-3212, JapanFacility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USARokkasho Fusion Institute, National Institutes for Quantum and Radiological Science and Technology, Rokkasho, Aomori 039-3212, JapanRokkasho Fusion Institute, National Institutes for Quantum and Radiological Science and Technology, Rokkasho, Aomori 039-3212, JapanRokkasho Fusion Institute, National Institutes for Quantum and Radiological Science and Technology, Rokkasho, Aomori 039-3212, JapanAccelerator-driven fusion neutron sources, e.g. Advanced Fusion Neutron Source (A-FNS) and DEMO Oriented Neutron Source (IFMIF-DONES), are being designed, based on the achievements and lessons learnt from the IFMIF/EVEDA project. The purpose of the study is to analytically evaluate the deformation of the lithium free surface, potentially created by the intense beam injection. We have developed a two-dimensional (2-D) fluid model of the “beam-on” target of an IFMIF-type fusion neutron source by extending the phenomenological 2-D model of the Li target flow of the EVEDA Lithium Test Loop (ELTL). We have derived, from the newly developed model, a practical and analytical formula of the thickness of the “beam-on” target in the flow direction with accounting for the beam injection effect. We have also evaluated the thickness of the beam-on target of A-FNS as an example of application of the derived formula. The evaluation indicates that under the reference design conditions of the accelerator and beam-on Li target of A-FNS, the deformation of the free surface of the target by the beam injection is negligibly small. The analytical results presented here may be used for a benchmark of more complicated CFD simulation for the “beam-on” target design of IFMIF-type fusion neutron sources like A-FNS and IFMIF-DONES. Keywords: IFMIF-type fusion neutron source, Design, Liquid lithium target, Beam injection, Free surface, Modelinghttp://www.sciencedirect.com/science/article/pii/S2352179117302089 |
| spellingShingle | Makoto M. Nakamura Hiroo Kondo Takuji Kanemura Makoto Oyaidzu Kentaro Ochiai Hiromitsu Suzuki Impact of the beam pressure on the free surface of the liquid lithium target of fusion neutron sources Nuclear Materials and Energy |
| title | Impact of the beam pressure on the free surface of the liquid lithium target of fusion neutron sources |
| title_full | Impact of the beam pressure on the free surface of the liquid lithium target of fusion neutron sources |
| title_fullStr | Impact of the beam pressure on the free surface of the liquid lithium target of fusion neutron sources |
| title_full_unstemmed | Impact of the beam pressure on the free surface of the liquid lithium target of fusion neutron sources |
| title_short | Impact of the beam pressure on the free surface of the liquid lithium target of fusion neutron sources |
| title_sort | impact of the beam pressure on the free surface of the liquid lithium target of fusion neutron sources |
| url | http://www.sciencedirect.com/science/article/pii/S2352179117302089 |
| work_keys_str_mv | AT makotomnakamura impactofthebeampressureonthefreesurfaceoftheliquidlithiumtargetoffusionneutronsources AT hirookondo impactofthebeampressureonthefreesurfaceoftheliquidlithiumtargetoffusionneutronsources AT takujikanemura impactofthebeampressureonthefreesurfaceoftheliquidlithiumtargetoffusionneutronsources AT makotooyaidzu impactofthebeampressureonthefreesurfaceoftheliquidlithiumtargetoffusionneutronsources AT kentaroochiai impactofthebeampressureonthefreesurfaceoftheliquidlithiumtargetoffusionneutronsources AT hiromitsusuzuki impactofthebeampressureonthefreesurfaceoftheliquidlithiumtargetoffusionneutronsources |