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Turbulent Flow in an Engine Valveport

 

Flow is computed in an automotive valve port modeled using a zonal hybrid mesh. The region around the valve has been meshed with tetrahedral cells, while the duct providing the inlet flow to the valve has been meshed with hexahedra. Pyramid cells are used to transition between the hexahedral and tetrahedral cells. A fourth cell type called a prismatic (or wedge) cell is used for the cylinder downstream of the valve. Furthermore, hanging-node adaption was used to improve the accuracy of the predicted flow field.

Number of cells
242,782
Cell type
hybrid
hanging-node adaption
Models
k-epsilon turbulence
Solver
segregated implicit

Plots

Serial
Parallel

Results

In the table below, a rating listed in red corresponds to the redzone result, and one in bold is a peak result. Bold red is used to indicate that the run was both the peak and redzone result.

Results are listed alphabetically by platform, within each FLUENT version.

 

Platform FL5M2 RATINGS
FLUENT Version CPUs or Cores Machines or Blocks Rating Speedup Efficiency
HP DL140 (EM64T,3600,WINCCS,IB) 6.3 1 1 1028.6 1.0 100%
2 1 1728.0 1.7 84%
4 2 3456.0 3.4 84%
8 4 6646.2 6.5 81%
16 8 10800.0 10.5 66%
HP DL585 (OPTERON_2CORE,2600,RHEL4,IB_VOLTAIRE) 6.3 serial 1 1018.6 N/A N/A
1 1 1032.3 1.0 100%
2 1 1489.7 1.4 72%
4 1 3459.5 3.4 84%
8 1 6671.8 6.5 81%
16 2 12705.9 12.3 77%
32 4 21735.8 21.1 66%
HP XC4000 (OPTERON_2CORE,2200,LINUX,IB_VOLTAIRE) 6.3 serial 1 819.2 N/A N/A
1 1 866.2 1.0 100%
2 1 1295.8 1.5 75%
4 1 2773.7 3.2 80%
8 2 5938.1 6.9 86%
16 4 11294.1 13.0 81%
32 8 19636.4 22.7 71%
HP XW9300 (OPTERON_2CORE,2400,LINUX) 6.3 serial 1 964.0 N/A N/A
1 1 1000.9 1.0 100%
2 1 1430.5 1.4 71%
4 1 3061.1 3.1 76%
IBM X3650 (EM64T_CLOVERTOWN_4CORE,2660,RHEL4) 6.3 1 1 1177.5 1.0 100%
2 1 2186.0 1.9 93%
4 1 3432.0 2.9 73%
8 1 6776.5 5.8 72%
INTEL WHITEBOX (EM64T_WOODCREST_2CORE,3000,RHAS4,IB_MELLANOX) 6.3 1 1 1344.7 1.0 100%
2 1 2439.0 1.8 91%
4 1 4271.9 3.2 79%
8 2 8816.3 6.6 82%
16 4 17280.0 12.9 80%
32 8 29793.1 22.2 69%