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Keywords: Numerical simulation
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Proceedings Papers

Proc. ASME. ICONE28, Volume 2: Nuclear Fuels, Research, and Fuel Cycle; Nuclear Codes and Standards; Thermal-Hydraulics, V002T05A013, August 4–6, 2021
Paper No: ICONE28-64920
... TRISO particle and metal matrix, M3 fuel exhibits Keywords: M3 fuel, ATF, thermal-mechanical coupling, complex in-pile behavior [9]. The report on the behavior numerical simulation simulation of M3 fuel was rare as we known. Accurate and reliable fuel behavior prediction is not only necessary for 1...
Topics: Fuels, Simulation
Proceedings Papers

Proc. ASME. ICONE28, Volume 2: Nuclear Fuels, Research, and Fuel Cycle; Nuclear Codes and Standards; Thermal-Hydraulics, V002T07A033, August 4–6, 2021
Paper No: ICONE28-65596
..., Water cooler, Numerical simulation Density Turbulence dissipation rate Thermal conductivity Dynamic viscosity ABBREVIATIONS HTGR High-temperature gas-cooled reactor IHX Intermediate heat exchanger VHTR Very-high-temperature gas-cooled reactor V002T07A033-1 Copyright © 2021 by ASME 1...
Proceedings Papers

Proc. ASME. ICONE28, Volume 3: Computational Fluid Dynamics (CFD); Verification and Validation; Advanced Methods of Manufacturing (AMM) for Nuclear Reactors and Components; Decontamination, Decommissioning, and Radioactive Waste Management; Beyond Design Basis and Nuclear Safety; Risk Informed Management and Regulation, V003T12A012, August 4–6, 2021
Paper No: ICONE28-64082
... reactor, and the time history diagram of the control bar position is obtained under the seismic conditions, thus verifying that ADS lead-bismuth alloy zero power reactor can be safely shut down under the safe shutdown earthquake (SSE). ADS control rod dropping rod numerical simulation...
Proceedings Papers

Proc. ASME. ICONE28, Volume 1: Operating Plant Challenges, Successes, and Lessons Learned; Nuclear Plant Engineering; Advanced Reactors and Fusion; Small Modular and Micro-Reactors Technologies and Applications, V001T03A007, August 4–6, 2021
Paper No: ICONE28-64525
... for various reactor operation of a nuclear plant, including optimization of safety concepts should be done in a relatively short period of time equipment as well as structures, systems, and components. using available industry resources, which include past State-of-the-art numerical simulation technologies...
Proceedings Papers

Proc. ASME. ICONE28, Volume 2: Nuclear Fuels, Research, and Fuel Cycle; Nuclear Codes and Standards; Thermal-Hydraulics, V002T07A006, August 4–6, 2021
Paper No: ICONE28-63381
... flow visualization oscillatory flow numerical simulation vortex shedding Abstract Abstract Thermoacoustic engines use waste heat available at a higher temperature to produce mechanical energy in the form of waves. The purpose of this study is to visualize the fluid behavior downstream...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 1: Beyond Design Basis; Codes and Standards; Computational Fluid Dynamics (CFD); Decontamination and Decommissioning; Nuclear Fuel and Engineering; Nuclear Plant Engineering, V001T03A024, August 4–5, 2020
Paper No: ICONE2020-16851
.... For the best estimate in AQUA-SF, sodium droplet size needs to be set larger than SPHINCS in order to decrease the surface area and suppress the spray burning rate. These adjustment leads to more precise representation of the measurements in T3 experiment. Keywords: Sodium combustion, Numerical simulation...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 1: Beyond Design Basis; Codes and Standards; Computational Fluid Dynamics (CFD); Decontamination and Decommissioning; Nuclear Fuel and Engineering; Nuclear Plant Engineering, V001T03A005, August 4–5, 2020
Paper No: ICONE2020-16213
... of core materials. In this study, the numerical simulation of jet breakup phenomena with a shallow pool was performed by using the developed method (TPFIT). We try to understand the hydrodynamic interaction under various, such as penetration, reach to the bottom, spread, accumulation of the molten...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 1: Beyond Design Basis; Codes and Standards; Computational Fluid Dynamics (CFD); Decontamination and Decommissioning; Nuclear Fuel and Engineering; Nuclear Plant Engineering, V001T03A020, August 4–5, 2020
Paper No: ICONE2020-16775
... distance (1–18). The maximum value of the heat transfer coefficient is found to be 16 times more than the heat transfer coefficient for natural convection. numerical simulation synthetic jet excitation frequency vortex formation electronic cooling EXPERIMENTAL AND NUMERICAL INVESTIGATION...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 2: Nuclear Policy; Nuclear Safety, Security, and Cyber Security; Operating Plant Experience; Probabilistic Risk Assessments; SMR and Advanced Reactors, V002T08A061, August 4–5, 2020
Paper No: ICONE2020-16957
... by large equivalent explosives at medium and long distances. In this paper, the air overpressure peak curve and behavior of reinforced concrete slabs under small equivalent TNT close-in explosion conditions are calculated by numerical simulation methods and compared with empirical formulas and experimental...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 1: Beyond Design Basis; Codes and Standards; Computational Fluid Dynamics (CFD); Decontamination and Decommissioning; Nuclear Fuel and Engineering; Nuclear Plant Engineering, V001T03A009, August 4–5, 2020
Paper No: ICONE2020-16351
... reveal the mechanism of radon exhalation from building materials into indoor atmosphere. natural convection indoor radon numerical simulation radon exhalation modeling NATURAL-CONVECTIVE TRANSPORT MODEL OF RADON FROM BUILDING FROM BUILDING MATERIALS INTO INDOOR ATMOSPHERE Shengyang FENG1...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 1: Beyond Design Basis; Codes and Standards; Computational Fluid Dynamics (CFD); Decontamination and Decommissioning; Nuclear Fuel and Engineering; Nuclear Plant Engineering, V001T03A010, August 4–5, 2020
Paper No: ICONE2020-16393
...NUMERICAL SIMULATION OF MICROPARTICLES MOTION IN TWO-PHASE BUBBLY FLOW Hiroyuki Yoshida1, Shinichiro Uesawa Japan Atomic Energy Agency Tokai, Naka, Ibaraki, Japan ABSTRACT The radioactive aerosol removal equipment is used as one of the safety systems of nuclear reactors. In this equipment...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 3: Student Paper Competition; Thermal-Hydraulics; Verification and Validation, V003T13A044, August 4–5, 2020
Paper No: ICONE2020-16780
... and kinetic energy. The results provide working references for the practical ADS steam spraying condensation process in AP1000 reactor. steam condensation numerical simulation UDF ADS EXPERIMENTAL AND NUMERICAL RESEARCH ON STEAM DIRECT CONTACT CONDENSATION PROCESS IN AUTOMATIC DEPRESSURIZATION...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 3: Student Paper Competition; Thermal-Hydraulics; Verification and Validation, V003T13A013, August 4–5, 2020
Paper No: ICONE2020-16206
... the volume of fluid (VOF) and adaptive mesh refinement method. The numerical simulations of tetradecane droplet collision were carried out to validate the numerical methods. The results showed good agreement with the experiments. Furthermore, the simulations of uranium dioxide (UO 2 ) droplets collision...
Proceedings Papers

Proc. ASME. ICONE21, Volume 4: Thermal Hydraulics, V004T09A041, July 29–August 2, 2013
Paper No: ICONE21-15524
..., then it can be applied to solve the heat transfer problem in PCCS accurately. KEY WORDS: stratification, numerical simulation, jet, large enclosure INTRODUCTION Thermal mixing and stratification phenomena are very important to passive containment cooling system. For current operating PWR pressurized water...
Proceedings Papers

Proc. ASME. ICONE21, Volume 3: Nuclear Safety and Security; Codes, Standards, Licensing and Regulatory Issues; Computational Fluid Dynamics and Coupled Codes, V003T10A043, July 29–August 2, 2013
Paper No: ICONE21-16641
... numerical simulation VOF bubble motion surface tension relative distance A numerical investigation of two-dimensional air bubble behaviors under the effect of gravity in still water based on the VOF (Volume-Of-Fluid) method is carried out. Initially, the surface tension effects...
Proceedings Papers

Proc. ASME. ICONE20-POWER2012, Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle, and Balance of Plant; Component Reliability and Materials Issues; Steam Generator Technology Applications and Innovations; Advanced Reactors and Near-Term Deployment; Reactor Physics, Neutronics, and Transport Theory; Nuclear Education, Human Resources, and Public Acceptance, 531-536, July 30–August 3, 2012
Paper No: ICONE20-POWER2012-55087
... and found in a good concordance to experimental creep data for an Inconel 738 LC super alloy. Creep Gas turbine bucket Life prediction Creep models Numerical simulation 1 Copyright © 2012 by ASME EVALUATION OF CREEP DAMAGE IN A GAS TURBINE FIRST STAGE BLADE Zdzislaw Mazur Instituto de...
Proceedings Papers

Proc. ASME. ICONE20-POWER2012, Volume 3: Thermal-Hydraulics; Turbines, Generators, and Auxiliaries, 55-64, July 30–August 3, 2012
Paper No: ICONE20-POWER2012-54093
... is, therefore, important for estimating thermal fatigue. In this study, an experimental method using a T-junction pipe with thermocouples was developed. Wall temperatures in the experiment have to be obtained at the inner surface of the pipe to validate numerical simulation results. The difference of position...
Proceedings Papers

Proc. ASME. ICONE20-POWER2012, Volume 4: Codes, Standards, Licensing, and Regulatory Issues; Fuel Cycle, Radioactive Waste Management and Decommissioning; Computational Fluid Dynamics (CFD) and Coupled Codes; Instrumentation and Controls; Fuels and Combustion, Materials Handling, Emissions; Advanced Energy Systems and Renewables (Wind, Solar, Geothermal); Performance Testing and Performance Test Codes, 419-427, July 30–August 3, 2012
Paper No: ICONE20-POWER2012-54317
... models built-in CFD code, which are valuable to further studies with more pitches and rod bundles in fast reactors. wire-wrapped subassembly convective heat transfer turbulence models numerical simulation Numerical simulation of liquid sodium convection flowing through wire-wrapped...
Proceedings Papers

Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 4, Parts A and B, 561-567, May 17–21, 2010
Paper No: ICONE18-29541
... dynamics (CFD), characteristics of fluid flow and heat transfer are numerically simulated in a horizontal tube under periodical fluctuating flow. The influences of different factors on the fluid flow and heat transfer are analyzed. The simulation results of steady flow and heat transfer in horizontal tube...
Proceedings Papers

Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 4, Parts A and B, 369-375, May 17–21, 2010
Paper No: ICONE18-29341
.... Furthermore, the effects of the eccentricity ratio and gap size on Nu number and the flow frictional resistance factor are also investigated. 08 04 2011 Concentric annuli Eccentric annuli Numerical Simulation 1 Proceedings of the 18th International Conference on Nuclear Engineering...