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Keywords: Two–Phase Flow
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Proceedings Papers

Proc. ASME. ICONE29, Volume 15: Student Paper Competition, V015T16A111, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-93313
... structure, the vertical round pipe is widely used in nuclear energy systems. The phase distribution characteristics of two-phase flow in a vertical round pipe is an important issue. For two-phase flow, combined with the local typical flow phenomenon, the analysis of the phase distribution characteristics...
Proceedings Papers

Proc. ASME. ICONE29, Volume 7B: Thermal-Hydraulics and Safety Analysis, V07BT07A002, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-92346
...Proceedings of the 2022 29th International Conference on Nuclear Engineering ICONE29 August 8-12, 2022, Virtual, Online ICONE29-92346 MEASUREMENT OF THE TWO-PHASE FLOW VOID FRACTION DOWNSTREAM OF SPACER GRIDS IN TIGHT LATTICE BUNDLES USING WIRE-MESH SENSOR Xu Yan, Yao Xiao*, Hengwei Zhang School...
Proceedings Papers

Proc. ASME. ICONE29, Volume 8: Computational Fluid Dynamics (CFD) and Applications, V008T08A059, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-93259
... two-phase flow rod bundle bubble diameter CFD Abstract In order to clearly understand the phase distributions, the gas-liquid two-phase flow in a 5 × 5 bare rod bundle channel was numerically studied based on the Euler-Euler two fluid model with the CFX commercial software. In the two...
Proceedings Papers

Proc. ASME. ICONE29, Volume 8: Computational Fluid Dynamics (CFD) and Applications, V008T08A025, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-91828
... multi-physics simulation platform neutronics and thermal-hydraulics coupling simulation fuel bundle two-phase flow Abstract JAEA (Japan Atomic Energy Agency) Advanced Multi-Physics Analysis platform for Nuclear systems (JAMPAN) has been developed for high-fidelity multi-physics...
Proceedings Papers

Proc. ASME. ICONE29, Volume 8: Computational Fluid Dynamics (CFD) and Applications, V008T08A044, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-92544
... blockage rod bundle channel two-phase flow Abstract The study of the effect of blockage on two-phase flow parameters in rod bundle is of significance to the prediction of the thermal-hydraulic behavior of fuel assembly under hypothetical accident conditions. The two-phase flow...
Proceedings Papers

Proc. ASME. ICONE29, Volume 15: Student Paper Competition, V015T16A072, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-92041
... open natural circulation two-phase flow flow characteristics Abstract In order to study the influence of the water level of the water tank on the flow instability and heat transfer character istics,which is of the low-pressure two-phase open natural circulation system. The open natural...
Proceedings Papers

Proc. ASME. ICONE29, Volume 15: Student Paper Competition, V015T16A034, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-90971
... LOCA hot leg countercurrent flow RELAP5 two-phase flow Abstract In the event of a Loss of Coolant Accident, a large amount of coolant is released from the reactor, and steam is generated inside the reactor, and then flows down the heat pipe into the steam generator. When a natural...
Proceedings Papers

Proc. ASME. ICONE29, Volume 7A: Thermal-Hydraulics and Safety Analysis, V07AT07A002, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-88830
..., the discharge mass flow rate prediction is crucial for engineering design and emergency response in case of nuclear accidents. Unfortunately, the critical flow is difficult to predict especially when two-phase flow exists. Developing a more accurate model for critical flow is an essential requirement...
Proceedings Papers

Proc. ASME. ICONE28, Volume 4: Student Paper Competition, V004T14A024, August 4–6, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ICONE28-64155
... two-phase flow flow regime artificial intelligence deep learning machine learning pattern recognition Abstract Gas-liquid two-phase flow has high potential in heat transfer and mixing capabilities, and therefore it is utilized in various technologies such as nuclear reactor...
Proceedings Papers

Proc. ASME. ICONE28, Volume 4: Student Paper Competition, V004T14A066, August 4–6, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ICONE28-64955
... Abstract Two-phase pressure drop in the debris has been studied by many researchers in relation to the debris cooling characteristics during a severe accident in a nuclear reactor. However, its flow regime transition of the two-phase flow in the debris has not been well understood, which...
Proceedings Papers

Proc. ASME. ICONE28, Volume 4: Student Paper Competition, V004T14A062, August 4–6, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ICONE28-64725
... Abstract As a common heat exchange structure, vertical pipe is widely used in neaclear reactors and other systems. Flow pattern and flow regime map are the basis of thermal-hydraulic calculation. In this paper, the experiment of air-water two-phase flow pattern was carried out based...
Proceedings Papers

Proc. ASME. ICONE28, Volume 4: Student Paper Competition, V004T14A031, August 4–6, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ICONE28-64356
... was fully studied and extensive correlations have been validated by a large amount of experimental data, the friction factor of two-phase flow still lacks feasible prediction due to its much more complexity. The existed correlations of two-phase flow in helically coiled tubes are mostly based on specified...
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, V001T03A004, August 4–5, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICONE2020-16193
... moisture separation mechanism drying process separation efficiency wave-plate mist eliminators inertial separators chevrons separator vanes separator panels steam drier wet steam two-phase flow nuclear power plants re-entrainment experimental validation MSR numerical modelling...
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, V001T03A019, August 4–5, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICONE2020-16747
... large diameter pipe two-phase flow horizontal pipe 90-degree elbow bend stratified flow CFD Abstract Two-phase flows are observed in various industrial plants and piping systems. Understanding two-phase flow behaviors such as flow patterns and unsteady void fraction in horizontal...
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
Publisher: American Society of Mechanical Engineers
Paper No: ICONE2020-16393
... numerical simulation two-phase flow small particle motion Lagrangian particle tracking water filter Abstract The radioactive aerosol removal equipment is used as one of the safety systems of nuclear reactors. In this equipment, microparticles of aerosol are removed through gas-liquid...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 3: Student Paper Competition; Thermal-Hydraulics; Verification and Validation, V003T12A021, August 4–5, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICONE2020-16297
... two-phase flow gas-liquid separation flow patterns centrifugal technology Abstract Gas-liquid separation is widely used in many fields, such as nuclear energy and petroleum resources. And the gas-liquid mixture separated gradually shows the characteristic of wide range of gas void...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 3: Student Paper Competition; Thermal-Hydraulics; Verification and Validation, V003T13A026, August 4–5, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICONE2020-16434
...INFLUENCE OF GAS PROPERTIES ON GAS-LIQUID TWO-PHASE FLOW Miki Saito, Taizo Kanai, Satoshi Nishimura, Yoshihisa Nishi Central Research Institute of Electric Power Industry Kanagawa, Japan ABSTRACT Understanding the mechanism of fission product (FP) removal by pool scrubbing is essential...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 3: Student Paper Competition; Thermal-Hydraulics; Verification and Validation, V003T14A004, August 4–5, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICONE2020-16550
... moisture separator (MS) separator elements throttling calorimeter steam two-phase flow nuclear power plant experimental validation moisture separator reheater (MSR) Abstract The Moisture Separator Reheater (MSR) is a key component of Nuclear Power Plants (NPP), both in terms...
Proceedings Papers

Proc. ASME. ICONE21, Volume 4: Thermal Hydraulics, V004T09A101, July 29–August 2, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ICONE21-16562
... with a mean deviation of 18.7% Key word: Two-phase Viscosity, Narrow Rectangular channel, Pressure Drop, Two-phase Flow NOMENCLATURE a aspect ratio Bo Bond number=gD/2)2/ B1, B2, y correlations in Table (1) D hydraulic diameter, m f frictional factor g acceleration of gravity, m/s2 G mass flux, kg/m2·s H...