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Keyword: CFD
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Proceedings Papers

Proc. ASME. ICONE21, Volume 3: Nuclear Safety and Security; Codes, Standards, Licensing and Regulatory Issues; Computational Fluid Dynamics and Coupled Codes, V003T10A004, July 29–August 2, 2013
Paper No: ICONE21-15049
... flow downstream. The flow mixing impact travels much longer than that caused by the most conventional mixing vanes. Nuclear fuel flow Characteristics Mixing vane CROSS-CELL vane CFD FLOW CHARACTERISTICS OF FUEL BUNDLE WITH NEW MIXING VANE DESIGN Yu Wenchi Nuclear Fuel Research...
Proceedings Papers

Proc. ASME. ICONE21, Volume 3: Nuclear Safety and Security; Codes, Standards, Licensing and Regulatory Issues; Computational Fluid Dynamics and Coupled Codes, V003T10A031, July 29–August 2, 2013
Paper No: ICONE21-15917
... in single channel or sub-channel analyses approach. Computational Fluid Dynamics (CFD) is a good method to study this problem. In this paper, the circumferential temperature distribution on the fuel cladding surface of different sub-channels of China Lead-Alloy Cooled Research Reactor (CLEAR-I) were...
Proceedings Papers

Proc. ASME. ICONE21, Volume 3: Nuclear Safety and Security; Codes, Standards, Licensing and Regulatory Issues; Computational Fluid Dynamics and Coupled Codes, V003T10A007, July 29–August 2, 2013
Paper No: ICONE21-15128
.... The dimensions and the shape of the air baffle have important effect on air flow rate and flow pattern of the natural convection, and the optimal option was chosen based on the simulation results. PCS CFD water film VOF air baffle NUMERICAL INVESTIGATION OF TWO PHASE FLOW AND HEAT...
Proceedings Papers

Proc. ASME. ICONE21, Volume 4: Thermal Hydraulics, V004T09A002, July 29–August 2, 2013
Paper No: ICONE21-15015
... varieties of gaps between graphite blocks without being heated enough. In our previous papers, the method of combined flow network and CFD was established to analyze several bypass flows in HTR-PM. In current paper, we focused on bypass flows in control rod channels by introducing the flow network there and...
Proceedings Papers

Proc. ASME. ICONE21, Volume 4: Thermal Hydraulics, V004T09A063, July 29–August 2, 2013
Paper No: ICONE21-15897
... CFD analysis of 2D axisymmetric domain to predict thermal stratification in scram conditions from full power operation has been performed by commercial code ANSYS 14.0. From the result, it can be seen that the thermal stratification can be formed in the hot pool under reactor scram conditions, the...
Proceedings Papers

Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 2, 913-922, May 17–21, 2010
Paper No: ICONE18-30225
..., rig dimensions, measurement zones, and the test equipment in order to provide a good base for Computational Fluid Dynamics (CFD) simulations. Turbulence analysis of the obtained data is provided in order to gain insight of the physical phenomena and to compare the possible results obtained from...
Proceedings Papers

Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 3, 497-504, May 17–21, 2010
Paper No: ICONE18-29643
... magnitude of the impulse created by steam explosion. 08 04 2011 Steam Explosion Premix Multiphase Fluid CFD Severe accident 1 Copyright © 2010 by ASME Proceedings of the 18th International Conference on Nuclear Engineering ICONE18 May 17-21, 2010, Xi an, Shanxi, China ICONE18-29643...
Proceedings Papers

Proc. ASME. ICONE17, Volume 4: Codes, Standards, Licensing and Regulatory Issues; Student Paper Competition, 667-672, July 12–16, 2009
Paper No: ICONE17-75854
... The 3-D physical and geometrical model of the water cooled pebble bed reactor (WCPBR) were built using the commercial software ProE and CFX, in which the thermal-hydraulic characteristics of the coolant were studied based on the computational fluid dynamics (CFD) in this work. The velocity field...
Proceedings Papers

Proc. ASME. ICONE17, Volume 4: Codes, Standards, Licensing and Regulatory Issues; Student Paper Competition, 351-360, July 12–16, 2009
Paper No: ICONE17-75214
... The validity of the simulation results from Computational Fluid Dynamics (CFD) are still under scrutiny. Some existing CFD closure models for complex flow produce results that are generally recognized as being inaccurate. Development of improved models for complex flow simulation require an...
Proceedings Papers

Proc. ASME. ICONE16, Volume 3: Thermal Hydraulics; Instrumentation and Controls, 589-594, May 11–15, 2008
Paper No: ICONE16-48581
... reviewed and assessed with the experimental results. In CFD analysis, PHOENICS-3.6 is used to carry out the evaluation of the various turbulence models in the tube geometry and to identify the difference between the numerical results and experimental ones in LBE flows. Based on the assessment of the...
Proceedings Papers

Proc. ASME. ICONE16, Volume 2: Fuel Cycle and High Level Waste Management; Computational Fluid Dynamics, Neutronics Methods and Coupled Codes; Student Paper Competition, 289-296, May 11–15, 2008
Paper No: ICONE16-48347
... Computational study of the moderator flow in calandria vessel of a heavy water reactor is carried out for three different inlet nozzle configurations. For the computations, PHOENICS CFD code is used. The flow and temperature distribution for all the configurations are determined. The impact of...
Proceedings Papers

Proc. ASME. ICONE10, 10th International Conference on Nuclear Engineering, Volume 3, 131-138, April 14–18, 2002
Paper No: ICONE10-22114
... A validation of a 3D CFD model for predicting local subcooling of the moderator in the vicinity of calandria tubes in a CANDU-6 reactor is performed. The small scale moderator experiments performed at Sheridan Park Experimental Laboratory (SPEL) in Ontario, Canada [1] is used for the validation...
Proceedings Papers

Proc. ASME. ICONE10, 10th International Conference on Nuclear Engineering, Volume 2, 137-144, April 14–18, 2002
Paper No: ICONE10-22206
... Hydrogen combustion may represent a threat to containment integrity in a VVER-440/213 plant owing to the combination of high pressure and high temperature. A study has been carried out using the GASFLOW 2.1 three-dimensional CFD code to evaluate the hydrogen distribution in the containment...
Proceedings Papers

Proc. ASME. ICONE10, 10th International Conference on Nuclear Engineering, Volume 3, 901-908, April 14–18, 2002
Paper No: ICONE10-22527
... generated and the momentum, heat and continuity equations are solved by CFX-4.3, a CFD code developed by AEA technology. The standard k-ε turbulence model associated with logarithmic wall treatment is used to model turbulence generation and dissipation within the vessel. The moderator fluid is heavy water...
Proceedings Papers

Proc. ASME. ICONE12, 12th International Conference on Nuclear Engineering, Volume 2, 223-231, April 25–29, 2004
Paper No: ICONE12-49106
... the TH performance improvement for the next generation fuel. A computational fluid dynamics (CFD) analysis was performed to investigate the coolant mixing in a nuclear fuel bundle that is promoted by the mixing vane on the grid spacer. Single and multiple subchannels of one grid span of the fuel...
Proceedings Papers

Proc. ASME. ICONE14, Volume 4: Computational Fluid Dynamics, Neutronics Methods and Coupled Codes; Student Paper Competition, 255-264, July 17–20, 2006
Paper No: ICONE14-89497
... From the aspect of planning the power upgrading of nuclear reactors — including the VVER-440 type reactor — it is essential to get to know the flow field in the fuel assembly. For this purpose we have developed models of the fuel assembly of the VVER-440 reactor using the ANSYS CFX 10.0 CFD code...
Proceedings Papers

Proc. ASME. ICONE14, Volume 4: Computational Fluid Dynamics, Neutronics Methods and Coupled Codes; Student Paper Competition, 217-224, July 17–20, 2006
Paper No: ICONE14-89458
... design work. 17 09 2008 Gas Entrainment CFD Free Surface VOF FBR 14 th International Conference on Nuclear Engineering Miami, Florida, USA, July 17-20, 2006 Proceedings of ICONE14 International Conference on Nuclear Engineering July 17-20, Miami, Florida, USA 1 Copyright © 2006 by...
Proceedings Papers

Proc. ASME. ICONE14, Volume 3: Structural Integrity; Nuclear Engineering Advances; Next Generation Systems; Near Term Deployment and Promotion of Nuclear Energy, 289-296, July 17–20, 2006
Paper No: ICONE14-89812
... circular cylinder are presented with experimental comparisons, showing the feasibility of accurate, efficient, time-dependent estimation of shedding frequency and resulting vibrations. 17 09 2008 CFD Vortex Induced Vibrations Boundary layer frequency Strouhal Number Fluid structure...