6.4.3. Solver and Analysis Type ....................................................................................................... 259
6.4.4. Models ................................................................................................................................. 260
6.4.5. Materials .............................................................................................................................. 261
6.4.6. Operating Conditions ........................................................................................................... 262
6.4.7. Boundary Conditions ............................................................................................................ 263
6.4.8. Solution: Steady Flow ........................................................................................................... 265
6.4.9. Enabling Time Dependence and Setting Transient Conditions ............................................... 279
6.4.10. Specifying Solution Parameters for Transient Flow and Solving ............................................ 282
6.4.11. Saving and Postprocessing Time-Dependent Data Sets ....................................................... 285
6.5. Summary ...................................................................................................................................... 299
6.6. Further Improvements .................................................................................................................. 300
7. Modeling Radiation and Natural Convection ..................................................................................... 301
7.1. Introduction ................................................................................................................................. 301
7.2. Prerequisites ................................................................................................................................. 301
7.3. Problem Description ..................................................................................................................... 301
7.4. Setup and Solution ....................................................................................................................... 302
7.4.1. Preparation .......................................................................................................................... 302
7.4.2. Reading and Checking the Mesh ........................................................................................... 303
7.4.3. Solver and Analysis Type ....................................................................................................... 304
7.4.4. Models ................................................................................................................................. 305
7.4.5. Defining the Materials .......................................................................................................... 308
7.4.6. Operating Conditions ........................................................................................................... 310
7.4.7. Boundary Conditions ............................................................................................................ 310
7.4.8. Obtaining the Solution ......................................................................................................... 314
7.4.9. Postprocessing ..................................................................................................................... 321
7.4.10. Comparing the Contour Plots after Varying Radiating Surfaces ............................................ 335
7.4.11. S2S Definition, Solution, and Postprocessing with Partial Enclosure ...................................... 347
7.5. Summary ...................................................................................................................................... 351
7.6. Further Improvements .................................................................................................................. 351
8. Using the Discrete Ordinates Radiation Model ................................................................................... 353
8.1. Introduction ................................................................................................................................. 353
8.2. Prerequisites ................................................................................................................................. 353
8.3. Problem Description ..................................................................................................................... 354
8.4. Setup and Solution ....................................................................................................................... 354
8.4.1. Preparation .......................................................................................................................... 355
8.4.2. Mesh .................................................................................................................................... 355
8.4.3. General Settings ................................................................................................................... 356
8.4.4. Models ................................................................................................................................. 358
8.4.5. Materials .............................................................................................................................. 359
8.4.6. Cell Zone Conditions ............................................................................................................ 362
8.4.7. Boundary Conditions ............................................................................................................ 364
8.4.8. Solution ............................................................................................................................... 372
8.4.9. Postprocessing ..................................................................................................................... 375
8.4.10. Iterate for Higher Pixels ....................................................................................................... 383
8.4.11. Iterate for Higher Divisions ................................................................................................. 387
8.4.12. Make the Reflector Completely Diffuse ............................................................................... 393
8.4.13. Change the Boundary Type of Baffle ................................................................................... 395
8.5. Summary ...................................................................................................................................... 396
8.6. Further Improvements .................................................................................................................. 396
9. Using a Non-Conformal Mesh ............................................................................................................. 397
9.1. Introduction ................................................................................................................................. 397
9.2. Prerequisites ................................................................................................................................. 397
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