Product: Abaqus/Standard
Benefits: You can run large cavity radiation analyses using parallel decomposition of cavities during heat transfer analyses.
Description: You can now use parallel computing to solve large cavity radiation problems in Abaqus/Standard. This new radiative heat functionality is fully parallel and scalable and allows for very large cavities, their size being limited only by available system memory. Analyses involving cavities as large as 128,000-facet models have been run successfully on an HP Linux cluster of 16 machines with two sockets of Intel Xeon Quad Core L5520 and 24 GB each. Table 11–1 illustrates the performance improvement for the exhaust manifold described in “Conductive, convective, and radiative heat transfer in an exhaust manifold,” Section 5.1.5 of the Abaqus Example Problems Manual (see Figure 11–1), and two industrial models: Model 1 is a 15,000-facet automotive part model, and Model 2 is a 10,000-facet rocket engine model.
Table 11–1 Performance of parallel cavity radiation.
| Model | Number of facets | Wall Clock Time (hh:mm:ss) | |
|---|---|---|---|
| Parallel Decomposition Off | Parallel Decomposition On | ||
| Exhaust manifold | 4,000 | 00:04:08 | 00:00:33 |
| Model 1 | 15,000 | 01:33:34 | 00:12:15 |
| Model 2 | 10,000 | 41:57:36 | 00:04:23 |
Figure 11–1 Performance improvement in the solution of the exhaust manifold example model illustrates the speedup achieved in the new parallel cavity radiation scheme.
