.... A multiphysics analysis framework for irregular geometry is developed to analyze and further optimize the reactor design. The TRISO particle positions are generated with discrete element method (DEM). The Reactor Monte Carlo code (RMC) and the commercial computational fluid dynamics (CFD) software star - ccm...

... autocatalytic recombiner computational fluid dynamics nuclear power plant loss of coolant accident containment Gaseous hydrogen can be released in large quantities in the containment of a nuclear power plant (NPP) following an accident which may then threaten, the integrity of the containment...

... of studies, Taylor [ 6 , 7 ] proposed two modified correlations, which consider the entrance region effect for straight tubes and curvature for curved tubes, respectively. Besides the experimental investigation, the flourishing numerical approach, viz., computational fluid dynamics (CFD) method, has...

...Holler Tadej; Ed M. J. Komen; Kljenak Ivo The paper presents the computational fluid dynamics (CFD) combustion modeling approach based on two combustion models. This modeling approach was applied to a hydrogen deflagration experiment conducted in a large-scale confined experimental vessel. The used...

... oxygen; with the exception that the containment gases would be flammable. Manuscript received July 4, 2017; final manuscript received November 20, 2017; published online May 16, 2018. Assoc. Editor: Masaki Morishita. 04 07 2017 20 11 2017 Computational fluid dynamics Current...

..., computational fluid dynamics (CFD) software of CFX was used to simulate and analyze its free interface character. The method of k – ε turbulence, cavitation, and volume of fluid (VOF) model was used to study the flow characteristic of liquid Lead-Bismuth eutectic (LBE) alloy with cavitation phase change...

... confirmed that the proposed impurity precipitation model can simulate the impurity precipitation phenomenon regardless of the cell size which were tested in this investigation. Computational fluid dynamics Next generation reactors Thermal hydraulics In the Chapman–Enskog analysis, the velocity...

...Attila Kiss; Andrey Churkin; Darwan S. Pilkhwal; Abhijeet M. Vaidya; Walter Ambrosini; Andrea Pucciarelli; Krishna Podila; Yanfei Rao; Laurence Leung; Chen Yuzhou; Mark Anderson; Meng Zhao Two computational fluid dynamic (CFD) benchmarks have been performed to assess the prediction accuracy...

... with spacing between elements maintained using the wire-wrap spacers. Experimental data and correlations are not available for the fuel-assembly concept of the Canadian SCWR. To analyze the thermalhydraulic performance of the new bundle design, CNL is using computational fluid dynamics (CFD) as well...

... September 21, 2017; published online December 4, 2017. Assoc. Editor: Thomas Schulenberg. 30 04 2017 21 09 2017 Computational fluid dynamics Next generation reactors Thermal hydraulics The supercritical water-cooled reactor (SCWR) is one of the six prospective generation IV...

.... 20 04 2017 15 08 2017 Computational fluid dynamics Next generation reactors Nuclear engineering Nuclear safety Thermal hydraulics Security Supercritical fluids are characterized by a temperature and pressure higher than the critical state properties of these respective...

..., 2017; published online July 31, 2017. Assoc. Editor: Asif Arastu. 13 09 2016 14 06 2017 Computational fluid dynamics Nuclear safety Security Aiming at the prediction of hydrogen explosions' hazard potential, a computational fluid dynamics (CFD) combustion solver has been...

...Peter Katzy; Josef Hasslberger; Lorenz R. Boeck; Thomas Sattelmayer The presented work aims to improve computational fluid dynamics (CFD) explosion modeling for lean hydrogen–air mixtures on under-resolved grids. Validation data are obtained from an entirely closed laboratory-scale explosion...

... for such applications should be developed. a 1…3, i = activity concentrations for each construction part, Bq/kg C 1…3 = radon progeny activity concentrations in the indoor environment, Bq/m 3 CFD = computational fluid dynamics E Ex = external exposure component of the effective dose...

.... Editor: Ilan Yaar. 18 09 2016 03 01 2017 Computational fluid dynamics Nuclear safety Thermal hydraulics Security Subscripts or Superscripts cl = centerline j = jet t = turbulent 0 = initial + = dimensionless wall distance...

... given for natural circulation flow in a loop is compared with the steady-state experimental data. The Reynolds number was found to be in the range of 57–114. Computation fluid dynamics (CFD) simulation has also been performed for MAFL using openfoam code, and the results are compared...

... Waves in Vertical Annular Flow ,” Int. J. Multiphase Flow , 36 ( 7 ), pp. 570 – 587 . 10.1016/j.ijmultiphaseflow.2010.03.004 [18] Rusche , H. , 2002 , “ Computational Fluid Dynamics of Dispersed Two-Phase Flows at High Phase Fractions ,” Ph.D. dissertation , Imperial College of Science...

.... Design-basis event Computational fluid dynamics TELEMAC-MASCARET is an integrated suite of solvers used in the field of free-surface flow. It contains mainly six modules: ARTEMIS, MASCARET, SISYPHE, TELEMAC2D, TELEMAC3D, and TOMAWAC. It has been used in the context of many studies throughout...

... steady-state simulations for a wide range of flow conditions. Both the accuracy of the numerical approximations and the validity of some physical models used in computational fluid dynamic (CFD) codes are assessed. The numerical results are then used to construct a cartographical representation...

...Donald M. McEligot; Richard W. Johnson Available computational fluid dynamics (CFD) predictions of pressure distributions in the vertical bypass flow between blocks in a prismatic gas-cooled reactor (GCR) have been analyzed to deduce apparent friction factors and loss coefficients for nuclear...