Aerodynamics of a locomotive in a tunnel
Description
Simulation of a locomotive running through a tunnel. In this benchmark air flow velocity and pressure fields were computed.
Screenshots
Source code
Numerical setup
- Domain size: 187 x 125 x 500
- Number of points: 11’687’500
- Resolution: 0.08 m
- Physical size: 14.96 x 10 x 40 m³
- Number of iterations: 50’000
- Time step: 4.8e-4 s
- Physical time: 24 s
Computation times
Standard test - 11’687’500 points Full load test - maximal amount of points
ASL version - 0.1.6:
| Compute device | Host | Full load | Standard |
|---|---|---|---|
| NVIDIA Tesla K80 12 GB GDDR5 | Intel Ivy Bridge E5-2690 v2 3GHz 10-core | 75’084’480 - 8117s | 967s |
| AMD Radeon HD 7950 3GB GDDR5 | AMD FX-6300 CPU 3.5GHz 6-core | 11’687’500 - 1048s | 1048s |
| NVIDIA Tesla K80 12 GB GDDR5 | Intel Haswell E5-2698 v3 2.3GHz 16-core | 75’084’480 - 8224s | 1330s |
| NVIDIA Tesla K40m 12 GB GDDR5 | Intel Ivy Bridge E5-2690 v2 3GHz 10-core | 75’084’480 - 8895s | 1432s |
| NVIDIA Tesla K20Xm 5 GB GDDR5 | Intel Ivy Bridge E5-2690 v2 3GHz 10-core | 37’921’300 - 6539s | 1622s |
| NVIDIA Tesla K10 4 GB GDDR5 | Intel Ivy Bridge E5-2690 v2 3GHz 10-core | 22’778’496 - 10841s | 5359s |