Direct Numerical Simulation and Visualization of Subcooled Pool Boiling
A direct numerical simulation of the boiling phenomena is one of the promising approaches in order to clarify their heat transfer characteristics and discuss the mechanism. During these decades, many DNS procedures have been developed according to the recent high performance computers and computatio...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2014/120604 |
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| author | Tomoaki Kunugi Yasuo Ose |
| author_facet | Tomoaki Kunugi Yasuo Ose |
| author_sort | Tomoaki Kunugi |
| collection | DOAJ |
| description | A direct numerical simulation of the boiling phenomena is one of the promising approaches in order to clarify their heat transfer characteristics and discuss the mechanism. During these decades, many DNS procedures have been developed according to the recent high performance computers and computational technologies. In this paper, the state of the art of direct numerical simulation of the pool boiling phenomena during mostly two decades is briefly summarized at first, and then the nonempirical boiling and condensation model proposed by the authors is introduced into the MARS (MultiInterface Advection and Reconstruction Solver developed by the authors). On the other hand, in order to clarify the boiling bubble behaviors under the subcooled conditions, the subcooled pool boiling experiments are also performed by using a high speed and high spatial resolution camera with a highly magnified telescope. Resulting from the numerical simulations of the subcooled pool boiling phenomena, the numerical results obtained by the MARS are validated by being compared to the experimental ones and the existing analytical solutions. The numerical results regarding the time evolution of the boiling bubble departure process under the subcooled conditions show a very good agreement with the experimental results. In conclusion, it can be said that the proposed nonempirical boiling and condensation model combined with the MARS has been validated. |
| format | Article |
| id | doaj-art-121ca53726454b68b61e61b805b26c18 |
| institution | Kabale University |
| issn | 1687-6075 1687-6083 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-121ca53726454b68b61e61b805b26c182025-02-03T05:59:16ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832014-01-01201410.1155/2014/120604120604Direct Numerical Simulation and Visualization of Subcooled Pool BoilingTomoaki Kunugi0Yasuo Ose1Kyoto University, Katsura, Nishikyo, Kyoto 615-8540, JapanYamato System Engineer Co., Ltd., Wakaba, Hitachi, Ibaraki 317-0063, JapanA direct numerical simulation of the boiling phenomena is one of the promising approaches in order to clarify their heat transfer characteristics and discuss the mechanism. During these decades, many DNS procedures have been developed according to the recent high performance computers and computational technologies. In this paper, the state of the art of direct numerical simulation of the pool boiling phenomena during mostly two decades is briefly summarized at first, and then the nonempirical boiling and condensation model proposed by the authors is introduced into the MARS (MultiInterface Advection and Reconstruction Solver developed by the authors). On the other hand, in order to clarify the boiling bubble behaviors under the subcooled conditions, the subcooled pool boiling experiments are also performed by using a high speed and high spatial resolution camera with a highly magnified telescope. Resulting from the numerical simulations of the subcooled pool boiling phenomena, the numerical results obtained by the MARS are validated by being compared to the experimental ones and the existing analytical solutions. The numerical results regarding the time evolution of the boiling bubble departure process under the subcooled conditions show a very good agreement with the experimental results. In conclusion, it can be said that the proposed nonempirical boiling and condensation model combined with the MARS has been validated.http://dx.doi.org/10.1155/2014/120604 |
| spellingShingle | Tomoaki Kunugi Yasuo Ose Direct Numerical Simulation and Visualization of Subcooled Pool Boiling Science and Technology of Nuclear Installations |
| title | Direct Numerical Simulation and Visualization of Subcooled Pool Boiling |
| title_full | Direct Numerical Simulation and Visualization of Subcooled Pool Boiling |
| title_fullStr | Direct Numerical Simulation and Visualization of Subcooled Pool Boiling |
| title_full_unstemmed | Direct Numerical Simulation and Visualization of Subcooled Pool Boiling |
| title_short | Direct Numerical Simulation and Visualization of Subcooled Pool Boiling |
| title_sort | direct numerical simulation and visualization of subcooled pool boiling |
| url | http://dx.doi.org/10.1155/2014/120604 |
| work_keys_str_mv | AT tomoakikunugi directnumericalsimulationandvisualizationofsubcooledpoolboiling AT yasuoose directnumericalsimulationandvisualizationofsubcooledpoolboiling |