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Proc. ASME. ICONE28, Volume 4: Student Paper Competition, V004T14A059, August 4–6, 2021
Paper No: ICONE28-64623
... efficiency of subchannel method. The interface code is developed in python for data transfer between RMC and CTF. The coupling simulation is firstly performed under 1MW, 1.5MW and 2MW steady state. The temperature and power distribution are obtained. The results are compared with the experimental data...
Proc. ASME. ICONE28, Volume 2: Nuclear Fuels, Research, and Fuel Cycle; Nuclear Codes and Standards; Thermal-Hydraulics, V002T07A005, August 4–6, 2021
Paper No: ICONE28-63380
... costs while maintaining accuracy. In this paper, the application of the volume porosity subchannel analysis method by CFD code for fuel subassemblies (subchannel CFD model) to the RV-CFD model was attempted. shape factor In the subchannel CFD model, the porous media approach was used to consider...
Proc. ASME. ICONE2020, Volume 3: Student Paper Competition; Thermal-Hydraulics; Verification and Validation, V003T13A037, August 4–5, 2020
Paper No: ICONE2020-16679
... and influence the heat removal capability. Therefore, it is important to obtain the flow velocity distribution in a wire wrapped pin bundle. In this study, the detailed flow velocity distribution in the subchannel has been obtained by PIV (Particle Image Velocimetry) measurement using a wire-wrapped 3-pin...
Masahiro Nishimura, Hiroyuki Sato, Hideki Kamide, Hiroyuki Ohshima, Kazuyoshi Nagasawa, Yasutomo Imai
Proc. ASME. ICONE20-POWER2012, Volume 3: Thermal-Hydraulics; Turbines, Generators, and Auxiliaries, 299-308, July 30–August 3, 2012
Paper No: ICONE20-POWER2012-54404
... and influence the heat removal capability. Therefore, it is important to obtain the flow velocity distribution in a wire wrapped pin bundle. In this study, water experiments were carried out to investigate the detailed velocity distribution in inner subchannel of the pin bundle geometry. These basic data...
Proc. ASME. ICONE10, 10th International Conference on Nuclear Engineering, Volume 3, 399-411, April 14–18, 2002
Paper No: ICONE10-22264
... for the distributions of the time mean axial velocity, lateral velocity, and turbulent intensities in 3 component directions over a center subchannel along axial locations and compared with the previous results of split vane grid that has two vanes in a cell. The results show that the mixing efficiency of the hybrid...
Proc. ASME. ICONE12, 12th International Conference on Nuclear Engineering, Volume 2, 223-231, April 25–29, 2004
Paper No: ICONE12-49106
..., the CHF margin is very important in order to extend its life. Particularly, the mixing flow or cross flow between the subchannels have to be reinforced for this purpose. From the mechanical/structural viewpoint, the critical strength and the fuel rod support behaviour of a spacer grid are the same...