Computational Fluid Dynamics (CFD) for Nuclear Reactor Safety Applications

Workshop Proceedings, CFD4NRS-3, Bethesda, Maryland, USA, 14-16 September 2010

Programme

Proceedings of the CFD for Nuclear Reactor Safety Applications (CFD4NRS-3) Workshop

Keynote Lectures

Poster Papers

Session 2

P2-1 CFD SIMULATION OF CRITICAL HEAT FLUX IN A ROD BUNDLE
P2-2 STUDY OF NATURAL CONVECTION AROUND A VERTICAL HEATED ROD USING PIV/LIF TECHNIQUE
P2-2_72 EXPERIMENTAL MEASUREMENTS OF DROPLET SIZE AND VELOCITY DISTRIBUTIONS AT THE OUTLET OF A PRESSURIZED WATER REACTOR CONTAINMENT SWIRLING SPRAY NOZZLE
P2-3 3D CFD CONV CODE: VALIDATION AND VERIFICATION
P2-4 CALCULATION OF PRESSURE DROPS THROUGH ATUCHA-II FUEL ASSEMBLY SPACER GRIDS
P2-5 MEASUREMENT OF LAMINAR VELOCITY PROFILES IN A PROTOTYPIC PWR FUEL ASSEMBLY
P2-9 CFD RECOMBINER MODELLING AND VALIDATION ON THE H2-PAR AND KALI-H2 EXPERIMENTS

Session 3

P3-1 MULTISCALE COMPUTER SIMULATION OF FISSION GAS DISCHARGE DURING LOSS-OF-FLOW ACCIDENT IN SODIUM FAST REACTOR
P3-2 EXPERIMENTAL MEASUREMENTS OF DROPLET SIZE AND VELOCITY DISTRIBUTIONS AT THE OUTLET OF A PRESSURIZED WATER REACTOR CONTAINMENT SWIRLING SPRAY NOZZLE
P3-3 CFD MODELING OF WALL STEAM CONDENSATION: TWO PHASE FLOW APPROACH VERSUS HOMOGENEOUS FLOW APPROACH
P3-4 ADVANCES IN THE DEVELOPMENT AND VALIDATION OF CFD-BWR, A TWO-PHASE COMPUTATIONAL FLUID DYNAMICS MODEL FOR THE SIMULATION OF FLOW AND HEAT TRANSFER IN BOILING WATER REACTORS

Session 4

P4-1 THE ROLE OF DIRECT NUMERICAL SIMULATIONS IN VALIDATION AND VERIFICATION
P4-2 A COUPLED CFD FINITE ELEMENT ANALYSIS METHODOLOGY IN A BIFURCATION PIPE IN A NUCLEAR PLANT HEAT EXCHANGER
P4-3 INTERPRETING THERMOCOUPLE READING IN FUEL ASSEMBLY HEAD - A CFD STUDY ON COOLANT MIXING
P4-4 EFFECTIVE APPROACHES TO SIMULATION OF THERMAL STRATIFICATION AND MIXING IN A PRESSURE SUPPRESSION POOL
P4-5 A SYNERGISTIC USE OF CFD, EXPERIMENTS AND EFFECTIVE CONVECTIVITY MODEL TO REDUCE UNCERTAINTY IN BWR SEVERE ACCIDENT ANALYSIS

Session 5

P5-1 2D SIMULATION OF TWO-PHASE FLOW ACROSS A TUBE BUNDLE WITH NEPTUNE_CFD CODE
P5-3 CFD MODELING OF THE TEST 25 OF THE PANDA EXPERIMENT
P5-4 ON THE PREDICTION OF BORON DILUTION USING THE CMFD CODE TRANSAT: THE ROCOM TEST CASE

Technical Papers

Session 1: Advanced Reactors (1)

1.1 CFD ANALYSIS OF DECAY HEAT REMOVAL SCENARIOS OF THE LEAD COOLED ELSY REACTOR
1.2 EVALUATION OF AN EXPERIMENTAL DATA SET TO BE VALIDATION DATA FOR CFD FOR A VHTR
1.3 LEAD PRESSURE LOSS IN THE HEAT EXCHANGER OF THE ELSY FAST LEAD-COOLED REACTOR BY CFD APPROACH
1.4 CFD CALCULATIONS OF WIRE WRAPPED FUEL BUNDLES: MODELING AND VALIDATION STRATEGIES

Session 2: Containment (1)

2.1 VALIDATION OF A SIMPLE CONDENSATION MODEL FOR SIMULATION OF GAS DISTRIBUTIONS IN CONTAINMENTS WITH CFX
2.2 ASSESSMENT OF THE GASFLOW SPRAY MODEL BASED ON THE CALCULATIONS OF THE TOSQAN EXPERIMENTS 101 AND 113
2.3 CFD MODELLING OF CONDENSATION OF VAPOUR IN THE PRESSURIZED PPOOLEX FACILITY
2.4 INVESTIGATION OF THE TURBULENT MASS TRANSPORT DURING THE MIXING OF A STABLE STRATIFICATION WITH A FREE JET USING CFD-METHODS

Session 3: Boiling-Bubbly Flow (1)

3.1 MODELING OF TURBULENT TRANSPORT TERM OF INTERFACIAL AREA CONCENTRATION IN GAS-LIQUID TWO-PHASE FLOW
3.2 APPLICABILITY OF TWO-PHASE CFD TO NUCLEAR REACTOR THERMALHYDRAULICS AND ELABORATION OF BEST PRACTICE GUIDELINES
3.3 NUMERICAL SIMULATION OF CONDENSATION IN BUBBLY FLOW
3.4 VALIDATION OF NEPTUNE CFD 1.0.8 FOR ADIABATIC BUBBLY FLOW AND BOILING FLOW

Session 4: Bundle Flow

4.1 EXPERIMENTAL BENCHMARK DATA FOR PWR ROD BUNDLE WITH SPACER-GRIDS
4.2 CFD ANALYSIS OF THE MATIS-H EXPERIMENTS ON THE TURBULENT FLOW STRUCTURES IN A 5x5 ROD BUNDLE WITH MIXING DEVICES
4.3 CFD PREDICTION OF PRESSURE DROP FOR THE INLET REGION OF A PWR FUEL ASSEMBLY
4.4 NUMERICAL SIMULATION OF THE FLOW IN WIRE-WRAPPED PIN BUNDLES: EFFECT OF PIN-WIRE CONTACT MODELING

Session 5: Fire

5.1 VALIDATION PROCESS OF THE ISIS CFD SOFTWARE FOR FIRE SIMULATION
5.2 CFD ANALYSIS OF A HYDROGEN EXPLOSION TEST WITH HIGH IGNITION ENERGY IN OPEN SPACE
5.3 RECOMMENDATION FOR MAXIMUM ALLOWABLE MESH SIZE FOR PLANT COMBUSTION ANALYSES WITH CFD CODES

Session 6: Drycask

6.1 VALIDATION OF COMPUTATIONAL FLUID DYNAMICS CODE MODELS FOR USED FUEL DRY STORAGE SYSTEMS
6.2 A 2-D TEST PROBLEM FOR CFD MODELING HEAT TRANSFER IN SPENT FUEL TRANSFER CASK NEUTRON SHIELDS
6.3 PRESSURE DROP MEASUREMENT OF LAMINAR AIR FLOW IN PROTOTYPIC BWR AND PWR FUEL ASSEMBLIES
6.4 COMPUTATIONAL FLUID DYNAMICS MODELING APPROACH TO EVALUATE VSC–17 DRY STORAGE CASK THERMAL DESIGNS
6.5 VALIDATION OF THE FLUENT CFD COMPUTER PROGRAM BY THERMAL TESTING OF A FULL SCALE DOUBLE-WALLED PROTOTYPE CANISTER FOR STORING CHERNOBYL SPENT FUEL

Session 7: Advanced Reactors (2)

7.1 FLUID FLOW AND HEAT TRANSFER ANALYSIS OF THE VHTR LOWER PLENUM USING THE FUEGO CFD CODE
7.2 EXPERIMENTAL EFFORTS FOR PREDICTIVE COMPUTATIONAL FLUID DYNAMICS VALIDATION
7.3 PARTICLE DEPOSITION ON AN ARRAY OF SPHERES USING RANS-RSM COUPLED TO A LAGRANGIAN RANDOM WALK
7.4 UNSTEADY VALIDATION METRICS FOR CFD IN A CYLINDER ARRAY

Session 8: Boiling-Bubbly Flow (2)

8.1 ASSESSMENT OF THE HEAT TRANSFER MODEL AND TURBULENT WALL FUNCTIONS FOR TWO FLUID CFD SIMULATIONS OF SUBCOOLED AND SATURATED BOILING
8.2 PREDICTION OF A SUBCOOLED BOILING FLOW WITH MECHANISTIC WALL BOILING AND BUBBLE SIZE MODELS
8.2 (Abstract) PREDICTION OF A SUBCOOLED BOILING FLOW WITH MECHANISTIC WALL BOILING AND BUBBLE SIZE MODELS
8.3 CFD SIMULATION OF CRITICAL HEAT FLUX IN A TUBE
8.4 USE OF SYNCHRONIZED, INFRARED THERMOMETRY AND HIGH-SPEED VIDEO FOR GENERATION OF SPACE- AND TIME- RESOLVED HIGH-QUALITY DATA ON BOILING HEAT TRANSFER

Session 9: Mixing Flow (1)

9.1 CFD SIMULATIONS OF THE FLOW MIXING IN THE LOWER PLENUM OF PWR'S
9.2 DIRECT STEAM CONDENSATION MODELING FOR A PASSIVE PWR SAFETY SYSTEM
9.3 STUDY OF THERMAL STRATIFICATION AND MIXING USING PIV
9.4 CHALLENGES FOR THE EXTENSION OF LIMITED EXPERIMENTAL DATA TO FULL-SCALE SEVERE ACCIDENT CONDITIONS USING CFD

Session 10: Plant Applications

10.1 THREE-DIMENSIONAL POROUS MEDIA MODEL OF A HORIZONTAL STEAM GENERATOR
10.2 FIBRE AGGLOMERATE TRANSPORT IN A HORIZONTAL FLOW
10.3 LES WITH ACOUSTICS AND FSI FOR DEFORMING PLATES IN GAS FLOW
10.4 CFD CALCULATION OF THE PRESSURE DROP THROUGH A RUPTURE DISK
10.5 A SHALLOW WATER EQUATION SOLVER AND PARTICLE TRACKING METHOD TO EVALUATE THE DEBRIS TRANSPORT

Session 11: Pressurized Thermal Shock

11.1 PRE-TEST CFD SIMULATIONS ON TOPFLOW-PTS EXPERIMENTS WITH ANSYS CFX 12.0
11.2 TRANSIENT COMPUTATIONAL FLUID DYNAMICS ANALYSIS OF EMERGENCY CORE COOLING INJECTION AT NATURAL CIRCULATION CONDITIONS
11.3 1 VALIDATION OF THE LARGE INTERFACE METHOD OF NEPTUNE CFD 1.0.8 FOR PRESSURIZED THERMAL SHOCK (PTS) APPLICATIONS
11.4 PTS PREDICTION USING THE CMFD CODE TransAT: THE COSI TEST CASE

Session 12: Containment (2)

12.1 VALIDATION OF CFD-MODELS FOR NATURAL CONVECTION, HEAT TRANSFER AND TURBULENCE PHENOMENA
12.2 TOWARD A CFD-GRADE DATABASE ADDRESSING LWR CONTAINMENT PHENOMENA
12.3 INTERACTION OF A LIGHT GAS STRATIFIED LAYER WITH AN AIR JET COMING FROM BELOW: LARGE SCALE EXPERIMENTS AND SCALING ISSUES
12.4 HYDROGEN DEFLAGRATION SIMULATIONS UNDER TYPICAL CONTAINMENT CONDITIONS FOR NUCLEAR SAFETY

Session 13: Boiling-Bubbly Flow (3)

13.1 EXPERIMENTAL DATA ON STEAM BUBBLE CONDENSATION IN POLY-DISPERSED UPWARD VERTICAL PIPE FLOW
13.2 COUPLED LAGRANGIAN AND EULERIAN SIMULATION OF BUBBLY FLOWS IN VERTICAL PIPES: VALIDATION WITH EXPERIMENTAL DATA USING MULTISENSOR CONDUCTIVITY PROBES AND LASER DOPPLER ANEMOMETRY
13.3 PREDICTION OF POLYDISPERSE STEAM BUBBLE CONDENSATION IN SUB-COOLED WATER USING THE INHOMOGENEOUS MUSIG MODEL

Session 14: Mixing Flow (2)

14.1 LARGE EDDY SIMULATION OF A TURBULENT FLOW IN A T-JUNCTION
14.2 NUMERICAL SIMULATIONS OF THERMAL-MIXING IN T-JUNCTION PIPING SYSTEM USING LARGE EDDY SIMULATION APPROACH
14.3 LARGE EDDY SIMULATIONS FOR THERMAL FATIGUE PREDICTIONS IN A T-JUNCTION: WALL-FUNCTION OR WALL-RESOLVE BASED LES?
14.4 TOWARDS EMPIRICISM-FREE LARGE EDDY SIMULATION FOR THERMO-HYDRAULIC PROBLEMS
14.5 DISPERSION OF RADIONUCLIDES AND RADIOLOGICAL DOSE COMPUTATION OVER A MESOSCALE DOMAIN USING WEATHER FORECAST AND CFD MODEL

Last reviewed: 20 March 2012