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Keywords: CFD
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Proceedings Papers

Proc. ASME. PVP2021, Volume 2: Computer Technology and Bolted Joints; Design and Analysis, V002T03A014, July 13–15, 2021
Paper No: PVP2021-60735
... (CFD) simulations. It is shown that the fillets on the semi-circular channel walls are stress concentration regions and that the stress intensity decreases quickly as the distance from the fillets increases. A quick drop in the maximum stress intensity is observed with the increase of the fillet radius...
Proceedings Papers

Proc. ASME. PVP2021, Volume 3: Fluid Structure Interaction; High Pressure Technology, V003T05A014, July 13–15, 2021
Paper No: PVP2021-61794
...Abstract Abstract In 2020, the CFD analyses have been performed on a whole reactor vessel model. The action of accumulators during the PTS transient was considered. Using these data, an attempt to the efficient use of sub-modelling is carried out in order to obtain a strong reduction...
Proceedings Papers

Proc. ASME. PVP2020, Volume 3: Design and Analysis, V003T03A005, August 3, 2020
Paper No: PVP2020-21685
..., for applications to engineering. CFD benchmark study was conducted for three different piping geometries to investigate prediction accuracy of solid particle induced erosion rates for five major erosion models. CFD results show that the erosion rates predicted by Grant & Tabakoff model are closest...
Proceedings Papers

Proc. ASME. PVP2020, Volume 8: Operations, Applications, and Components, V008T08A036, August 3, 2020
Paper No: PVP2020-21116
... (HBU) spent fuel data project lead by the Electric Power Research Institute (EPRI). Helium, nitrogen, argon, and water vapor fill gases are investigated at pressures ranging from atmospheric (∼10 5 Pa) to 100 Pa. Steady-state computational fluid dynamics (CFD) simulations that include the effect...
Proceedings Papers

Proc. ASME. PVP2019, Volume 3: Design and Analysis, V003T03A042, July 14–19, 2019
Paper No: PVP2019-93064
... of the EU project ATLAS+. In that project similar analyses will be performed on a different configuration. Keywords: crack growth, flow mixing, CFD, FE analysis, ASME. INTRODUCTION Thermal fatigue is a safety related issue in primary pipework systems of nuclear power plants. Long term operation of current...
Proceedings Papers

Proc. ASME. PVP2019, Volume 4: Fluid-Structure Interaction, V004T04A015, July 14–19, 2019
Paper No: PVP2019-93428
..., it was decided to evaluate its expected performance by means of computational fluid dynamics (CFD) and structural stress finite element analysis (FEA). This paper gives an account of the selection of the perforated annulus as the preferred vibration mitigation solution and its evaluation by means of high...
Proceedings Papers

Proc. ASME. PVP2019, Volume 5: High-Pressure Technology; Rudy Scavuzzo Student Paper Symposium and 27th Annual Student Paper Competition; ASME Nondestructive Evaluation, Diagnosis and Prognosis Division (NDPD), V005T09A010, July 14–19, 2019
Paper No: PVP2019-93511
...CFD ANALYSIS AND STRUCTURAL SAFETY ASSESSMENT OF A BYPASS MITIGATION DEVICE USED DURING A TI-SGTR ACCIDENTAL RELEASE FROM A MSSV Wung Jae Wang Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology Daejeon, Korea Man Sung Yim1F* Department of Nuclear...
Proceedings Papers

Proc. ASME. PVP2019, Volume 6A: Materials and Fabrication, V06AT06A044, July 14–19, 2019
Paper No: PVP2019-93564
...XFEM AND STANDARD FRACTURE-MECHANICS ANALYSES OF THE REACTOR PRESSURE VESSEL GÖSGEN BASED ON THERMAL-HYDRAULICS INPUT DATA FROM KWU-MIX AND CFD ANALYSES Alexander Mutz NPP Gösgen-Däniken AG CH-4658 Däniken, Switzerland amutz@kkg.ch Tomas Nicak Framatome GmbH Paul-Gossen-Str. 100, 91052 Erlangen...
Proceedings Papers

Proc. ASME. PVP2011, Volume 5: High-Pressure Technology; Nondestructive Evaluation; Nuclear Engineering, 121-134, July 17–21, 2011
Paper No: PVP2011-57685
... ensue from a pneumatic pressure test failure. As a vessel fails, the volume of pressurized gas will expand into the surroundings. A computational fluid dynamics (CFD) model of the pressure vessel and its enclosure will provide an accurate assessment of the blast loads in the environment. This paper...
Proceedings Papers

Proc. ASME. PVP2011, Volume 4: Fluid-Structure Interaction, 3-9, July 17–21, 2011
Paper No: PVP2011-57167
... new correlations for blast overpressure and impulse for a range of vessel geometries and burst conditions. The results can be used to predict the airblast hazards from cylindrical PVBs over the range of standoff distances for which directional effects exist. PVB directional blast CFD 1...
Proceedings Papers

Proc. ASME. PVP2009, Volume 1: Codes and Standards, 467-471, July 26–30, 2009
Paper No: PVP2009-77627
... and downstream of the leaking valve. The position with the highest sound pressure was also found out. Valve Inner leakage Acoustic testing Numerical simulation CFD 1 Proceedings of PVP2009 2009 ASME Pressure Vessels and Piping Conference July 26-30, 2009, Prague, Czech Republic PVP2009-77627...
Proceedings Papers

Proc. ASME. PVP2007, Volume 4: Fluid-Structure Interaction, 559-568, July 22–26, 2007
Paper No: PVP2007-26494
... improve our understanding of the local loads and spatial load variations a fuel assembly is subjected to. Thermal-Hydraulics fuel assembly CFD Qualification Code 2-1 Proceedings of PVP2007 SME Pressure Vessels and Piping Division Conference nozzles, and guides tubes are represented, though...
Proceedings Papers

Proc. ASME. PVP2002, Computational Technologies for Fluid/Thermal/Structural/Chemical Systems With Industrial Applications, Volume 2, 67-73, August 5–9, 2002
Paper No: PVP2002-1575
... of particle tracking techniques for studying the mixing of static mixers in the laminar regime. CFD static mixer pressure drop particle tracking mixing SIMULATION OF THE LAMINAR FLOW IN A PRIMIX STATIC MIXER R.F. Mudde* and C. Van Pijpen Kramers Laboratorium voor Fysische Technologie Delft...
Proceedings Papers

Proc. ASME. PVP2004, Computational Technologies for Fluid/Thermal/Structural/Chemical Systems With Industrial Applications, Volume 1, 171-178, July 25–29, 2004
Paper No: PVP2004-3104
... of the numerical sim- ulations are compared to experiments, both with soldered and without soldered elements. The comparison is good, showing the capabilities of numerical simulations for studying and opti- mizing heat transter in static mixers. Keywords CFD, static mixer, heat transfer, Nusselt number...
Proceedings Papers

Proc. ASME. PVP2004, Computational Technologies for Fluid/Thermal/Structural/Chemical Systems With Industrial Applications, Volume 1, 133-144, July 25–29, 2004
Paper No: PVP2004-3099
... 13 08 2008 PVP-Vol. 491-1, Computational Technologies for Fluid/Thermal/ Structural/Chemical Systems With Industrial Applications -- 2004 Volume 1 July 25-29, 2004, San Diego, CaUfomia USA PVP2004-3099 IMPACT OF CAVITY ON SUNROOF BUFFETING - A TWO DIMENSIONAL CFD STUDY Chang-Fa An Belcan...
Proceedings Papers

Proc. ASME. PVP2004, Computational Technologies for Fluid/Thermal/Structural/Chemical Systems With Industrial Applications, Volume 1, 197-203, July 25–29, 2004
Paper No: PVP2004-3107
... 13 08 2008 In this paper the internal flow in a hydraulic servo valve was investigated. The objectives of this research work were to investigate the turbulent flow and the cavitation phenomenon in the valve by using numerical simulation method in the form of CFD (Computational Fluid...
Proceedings Papers

Proc. ASME. PVP2004, Computational Technologies for Fluid/Thermal/Structural/Chemical Systems With Industrial Applications, Volume 1, 163-170, July 25–29, 2004
Paper No: PVP2004-3103
... of the work, discussed in this paper is to establish the potential of CFD in determining these mixing times. A buoyancy extended standard k-ε model has been used to model the mixing behaviour in a tank containing two miscible liquids of different density, which are stratified before the mixer is switched...
Proceedings Papers

Proc. ASME. PVP2004, Computational Technologies for Fluid/Thermal/Structural/Chemical Systems With Industrial Applications, Volume 1, 125-131, July 25–29, 2004
Paper No: PVP2004-3098
... is scarce. In this paper, drag forces on this configuration were investigated using the commercial CFD solver Fluent 6. The work includes results with various mesh densities and different Reynolds numbers. Several common turbulence models as available in Fluent were applied. Good agreement to experiments...
Proceedings Papers

Proc. ASME. PVP2004, Computational Technologies for Fluid/Thermal/Structural/Chemical Systems With Industrial Applications, Volume 2, 227-234, July 25–29, 2004
Paper No: PVP2004-3140
... and high COP of the ejector is gained by optimizing its structure. ejector steam shock entrainment ratio CFD PVP-Vol. 491-2, Computational Technologies for Fluid/Thermal/ Structural/Chemical Systems With Industrial Applications -- 2004 Volume 2 July 25-29, 2004, San Diego, California USA...
Proceedings Papers

Proc. ASME. PVP2006-ICPVT-11, Volume 8: Seismic Engineering, 249-256, July 23–27, 2006
Paper No: PVP2006-ICPVT-11-93609
... to calculate computational fluid dynamics (CFD) and computational mesh dynamics (CMD). ABAQUS is used to calculate computational structure dynamics (CSD). Some user subroutines are implemented into ABAQUS and the data are exchanged among CSD, CFD and CMD. Numerical results including elephant foot bulging (EFB...