PyroSim Example Guide - Aeolus Consulting

1 PyroSim Example Guide 2012 PyroSim Example Guide Table of Contents iv Table of Contents PyroSim Example Guide .. ii Table of Contents .. iv Table of Figures .. vii Chapter 1. Before Starting ..1 Install 1 Units .. 1 Manipulating the 3D Image .. 1 FDS Concepts and Nomenclature .. 1 Chapter 2. Burner Fire ..3 create the Mesh .. 3 create the Burner Surface .. 4 create the Burner Vent .. 5 create the Top Vent .. 6 Add a Thermocouple .. 6 Add a Temperature Slice Plane .. 6 Orbit the Model for a Better View .. 7 Save the Model .. 7 Run the Simulation.

2 7 View Smoke in 3D .. 9 View Temperature Slice Plane .. 9 View Temperature Measurements .. 10 Chapter 3. Air Movement .. 11 create Mesh .. 11 create the Supply Surface .. 12 create Vents .. 13 create Slice Records .. 15 Specify Simulation Properties .. 15 Save the Model .. 16 Run the Simulation .. 16 View Particles .. 16 View Slice Data .. 17 Chapter 4. Smoke Layer Height and Heat Flow Through a Door .. 18 create the Burner Surface .. 18 create the Burner Vent .. 19 create the Open Side Vent .. 20 create the Mesh .. 21 Add the Wall .. 21 Add the Door .. 22 Orbit the Model for a Better View.

3 22 Add a Layer Zoning Device .. 23 Add a Flow Measuring Device .. 23 Set the Simulation Time .. 24 Save the model .. 24 Run the Simulation .. 24 View Smoke in 3D .. 25 Table of Contents v View Time History 26 Chapter 5. Room Fire .. 27 Import Reaction and Material Data .. 27 Save the Model .. 28 create the Mesh .. 28 Specify Combustion Parameters .. 29 create Surfaces .. 30 create Furniture (Obstructions) .. 32 Walls .. 36 create Door (Hole in Wall) .. 37 Use Vents to Define the Burner Fire and Floor .. 38 Add an Open Boundary .. 39 Hang a Picture to the Wall.

4 39 create Thermocouple Records .. 40 create Slice Records for 3D Results Plotting .. 40 create Boundary Records .. 40 Specify Simulation Properties .. 41 The Model is Completed .. 41 Run the Analysis .. 41 View the Results .. 42 Chapter 6. Switchgear Fire Example .. 44 Computational Mesh .. 46 Material Properties .. 48 Save the Model .. 50 Surface Properties .. 50 Model Geometry .. 52 Post-Processing Controls .. 68 Simulation 70 Run the Analysis .. 70 View the Results .. 71 Chapter 7. Single Room Evacuation .. 75 Enable FDS+EVAC .. 75 create Mesh .. 75 create an Exit.

5 76 Add Occupants .. 77 Specify Simulation Properties .. 78 Save the Model .. 78 Run the Analysis .. 78 View the Results .. 78 Using Pathfinder to Solve the Same Problem .. 79 Define the Room .. 80 create an Exit .. 80 Add Occupants .. 80 Specify Simulation Properties .. 81 Save the Model .. 81 Run the Analysis .. 81 View the Results .. 81 Chapter 8. Example Problems Provided with FDS 5 .. 83 Table of Contents vi Ethanol Pan Fire .. 83 Box Burn Away .. 85 Insulated Steel Column .. 86 Water Cooling .. 87 Evacuation .. 88 References .. 90 Table of Figures vii Table of Figures Figure Burner fire in this Example .

6 3 Figure Creating the mesh .. 4 Figure Inserting a new burner surface .. 5 Figure Defining parameters for the burner surface .. 5 Figure Creating the burner 6 Figure The Burner Fire model .. 7 Figure The simulation dialog during the analysis .. 8 Figure The initial Smokeview display .. 9 Figure 3D smoke in the model .. 9 Figure Temperature contours on the slice plane .. 10 Figure Temperature time history plot .. 10 Figure 3D visualization of air flow in this Example .. 11 Figure Creating the mesh .. 12 Figure Naming the new supply surface.

7 12 Figure Creating a new supply surface .. 13 Figure Creating the new blow vent .. 14 Figure The resulting view .. 15 Figure Slice record data .. 15 Figure Defining the simulation parameters .. 16 Figure View in Smokeview .. 17 Figure View in Smokeview of velocity contours .. 17 Figure Smoke in the model .. 18 Figure Creating a new burner 19 Figure Defining parameters for the burner surface .. 19 Figure Creating the burner 20 Figure Creating the mesh .. 21 Figure Creating the wall .. 22 Figure The model after rotating. The burner is shown in red and the top vent in blue.

8 23 Figure The simulation dialog during the analysis.. 24 Figure The initial Smokeview display.. 25 Figure 3D smoke in the model.. 25 Figure Time history plot of heat flow through the door.. 26 Figure Time history plot of smoke layer height.. 26 Figure Room fire in this Example .. 27 Figure Copy the reaction from the library .. 28 Figure Creating the mesh .. 29 Figure The POLYURETHANE reaction parameters.. 30 Figure Creating the floor surface.. 31 Table of Figures viii Figure Input for the couch base .. 33 Figure The room after the couch is added.

9 35 Figure The resulting room 36 Figure Drawing the wall .. 37 Figure The model after adding the door .. 38 Figure Completed model .. 41 Figure Heat release rate isosurface and temperature contours .. 42 Figure Heat release rate .. 43 Figure Pictorial representation of the switchgear room complex .. 44 Figure Completed model .. 45 Figure Input to create the mesh .. 47 Figure Display of the meshes .. 48 Figure Copy the material data from the library to the model .. 49 Figure Thermo-plastic properties .. 50 Figure Composition of the concrete 51 Figure The concrete surface.

10 51 Figure Input for the wall dividing the two rooms .. 54 Figure Display of the dividing wall .. 54 Figure The contol logic that opens the dividing door .. 56 Figure Sketch of the lower left cabinet .. 58 Figure Making a copy of Cabinet 1 by dragging. The final position will be 4 feet from the left and top boundaries.. 59 Figure The rooms showing the switchgear 60 Figure The sketch of Cable A .. 61 Figure The room showing the cables .. 63 Figure Creating the supply vent surface .. 64 Figure The room showing the vents .. 66 Figure Defining the temperature isosurfaces.