Investigation of single bubble behavior under rolling motions using multiphase MPS method on GPU

Muhammad Abdul Basit; Wenxi Tian; Ronghua Chen; Romana Basit; Suizheng Qiu; Guanghui Su

doi:https://doi.org/10.1016/j.net.2020.12.013

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자료유형: 학술저널

저자정보: Muhammad Abdul Basit (Xi’an Jiaotong University) Wenxi Tian (Xi'an Jiaotong University) Ronghua Chen (Xi'an Jiaotong University) Romana Basit (Xi’an Jiaotong University) Suizheng Qiu (Xi'an Jiaotong University) Guanghui Su (Xi'an Jiaotong University)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제6호

발행연도: 2021.6

수록면: 1,810 - 1,820 (11page)

DOI: https://doi.org/10.1016/j.net.2020.12.013

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Study of single bubble behavior under rolling motions can prove useful for fundamental understanding offlow field inside the modern small modular nuclear reactors. The objective of the present study is tosimulate the influence of rolling conditions on single rising bubble in a liquid using multiphase MovingParticle Semi-implicit (MPS) method. Rolling force term was added to 2D Navier-Stokes equations and acomputer program was written using C language employing OpenACC to port the code to GPU. Computational results obtained were found to be in good agreement with the results available inliterature. The impact of rolling parameters on trajectory and velocity of the rising bubble has beenstudied. It has been found that bubble rise velocity increases with rolling amplitude due to modificationof flow field around the bubble. It has also been concluded that the oscillations of free surface, caused byrolling, influence the bubble trajectory. Furthermore, it has been discovered that smaller vessel widthreduces the impact of rolling motions on the rising bubble. The effect of liquid viscosity on bubble risingunder rolling was also investigated and it was found that effects of rolling became more pronouncedwith the increase of liquid viscosity.

#Rolling conditions #Multiphase MPS method #Single bubble behavior #Bubble trajectory #OpenACC #GPU

참고문헌 (38)

참고문헌 신청

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