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Title page 1

Contents 6

ABSTRACT 4

FOREWORD 5

EXECUTIVE SUMMARY 11

ABBREVIATIONS AND ACRONYMS 12

1. INTRODUCTION 13

1.1. Overview of TRACE 13

1.2. Current Post-Processing of TRACE 13

1.3. Objectives of the Report 16

1.4. Scope of the Report 16

2. THE SALOME PLATFORM AND MEDCOUPLING LIBRARY 17

2.1. Overview of SALOME 17

2.2. The MEDCoupling Library 19

3. DEVELOPMENT OF THE TRACE POST-PROCESSING FUNCTIONALITY 24

3.1. Construct Mesh and Field in MED Format for the 3D VESSEL Component 24

3.2. The Low-Level Logic of the Enhanced TRACE Package 27

4. DEMONSTRATION OF THE POST-PROCESSING FUNCTIONALITY OF TRACE 30

4.1. The AP-1000 Transient Case 30

4.2. Demonstration of the Meshes and Fields in SALOME 32

5. CONCLUSION 37

6. OUTLOOK 38

7. REFERENCES 39

APPENDIX A. PRACTICE OF SINGLE MESH CONSTRUCTION 40

APPENDIX B. PRACTICE OF PWR TYPE MESH CONSTRUCTION 44

APPENDIX C. PRACTICE OF VVER TYPE MESH CONSTRUCTION 46

APPENDIX D. PRACTICE OF MED FIELD CONSTRUCTION 48

Tables 10

Table 3-1. The Physical Data Which Can be Derived as MED Fields 27

Table 4-1. Main Plant Thermal-Hydraulic Data of AP1000 30

Figures 8

Figure 1-1. The General Appearance of AptPlot 13

Figure 1-2. The Main Panel of the Model Editor of SNAP 14

Figure 1-3. The Window Displaying the Animation of TRACE Results 15

Figure 1-4. The Vessel Ring Display Bean for 3D VESSEL Component of TRACE 16

Figure 2-1. The Dependent 3rd Party Packages of SALOME 17

Figure 2-2. The Dependency of SALOME Modules to SALOME Prerequisites 18

Figure 2-3. The General Structure of the SALOME Platform 19

Figure 2-4. The PARAVIS Main Interface in SALOME 19

Figure 2-5. The 3D Volumetric Cell Types Supported by MEDCoupling 21

Figure 2-6. An Example of Fields with Attributions 22

Figure 3-1. A Cell is Built from Point to Surface to Volume 24

Figure 3-2. Cells Supported by MEDCoupling Library and the Typical TRACE Cells 24

Figure 3-3. Construction of a Typical TRACE Cell 25

Figure 3-4. The Typical Spatial Surfaces to be Defined for the VESSEL Component of TRACE 25

Figure 3-5. Simulation of a Typical TRACE Cell Using Different Approximation Methods a) Direct Point Use, b) Quadrangles Approximation... 26

Figure 3-6. The File Structure of the Updated TRACE Package 28

Figure 3-7. The File Structure of CXX 29

Figure 4-1. Configuration of the Main Components of the AP1000 Reactor 30

Figure 4-2. The AP1000 Model in SNAP 31

Figure 4-3. The Configuration of the Hot Legs and Cold Legs of the Vessel 31

Figure 4-4. Transient Evolution 32

Figure 4-5. The Input and Output Files of the New TRACE 32

Figure 4-6. The Appearance of SALOME after Importing the Two MED Files 33

Figure 4-7. The Zoomed-in Task Window Displaying the Two MED Files 33

Figure 4-8. The Zoomed-in Property Window Displaying the Fields Storing in the Polyhedron Mesh 34

Figure 4-9. The Zoomed-in Property Window Displaying the Fields Storing in the Surface Mesh 34

Figure 4-10. The Coolant Temperature Field in the Polyhedron Mesh Processed in SALOME 34

Figure 4-11. The Mass Flow Rate on Z Direction and the Coolant Velocity on YT Direction in the Surface Mesh Processed in SALOME 35

Figure 4-12. The Data Analysis of Specific Part or Cells 36

Appendix Figures 44

Figure B-1. The Desired Core Mesh Type for PWR 44

Figure B-2. The Order of the Points of PWR Core Mesh 44

Figure C-3. The Desired Core Mesh Type for VVER 46

Figure C-4. The Order of the Points of VVER Core Mesh 46