Efficient Gas Entrainment Simulation for Fast Reactors using Lattice Boltzmann Method

Research Project

Project/Area Number	25K21212
Research Category	Grant-in-Aid for Early-Career Scientists
Allocation Type	Multi-year Fund
Review Section	Basic Section 60090:High performance computing-related
Research Institution	Japan Atomic Energy Agency
Principal Investigator	Sitompul Yos・Panagaman 国立研究開発法人日本原子力研究開発機構, システム計算科学センター, 研究職 (90976945)
Project Period (FY)	2025-04-01 – 2028-03-31
Project Status	Granted (Fiscal Year 2025)
Budget Amount *help	¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000) Fiscal Year 2027: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000) Fiscal Year 2026: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000) Fiscal Year 2025: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords	Gas entrainment / Simulation / Two-phase / Lattice Boltzmann Method / Adaptive Mesh Refinement
Outline of Research at the Start	Accurate and efficient gas entrainment simulation is crucial. This study explores LBM as an alternative to Navier-Stokes solvers, improving accuracy and drastically reducing computation time for large-scale simulations. It marks the first application of LBM for gas entrainment in fast reactors.