Where the Umax is the velocity at centerline, r is the radial position and ro is the pipe radius from the centerline. And U is the radial velocity.
Radius from the centerline | CFX | Equation | % Difference |
0.00021 | 0.63457 | 0.64923 | -2.31 |
0.00062 | 0.63344 | 0.64304 | -1.52 |
0.00103 | 0.63190 | 0.63068 | 0.19 |
0.00145 | 0.62735 | 0.61213 | 2.43 |
0.00186 | 0.61647 | 0.58740 | 4.72 |
0.00228 | 0.60536 | 0.55648 | 8.07 |
0.00269 | 0.59393 | 0.51938 | 12.55 |
0.00310 | 0.56932 | 0.47610 | 16.37 |
0.00352 | 0.54007 | 0.42663 | 21.00 |
0.00393 | 0.50639 | 0.37099 | 26.74 |
0.00434 | 0.42262 | 0.30916 | 26.85 |
0.00476 | 0.32510 | 0.24114 | 25.82 |
0.00517 | 0.21881 | 0.16694 | 23.70 |
0.00559 | 0.10321 | 0.08656 | 16.13 |
0.00600 | 0.00020 | 0.00000 | 100.06 |