Manual Inflow Profile - [source code]
Define inflow boundary conditions from a manually entered vertical profile (z/zR, U/UR, k/UR^2) instead of the parametric ABL log-law. Writes fixedProfile inlet conditions for U, k and epsilon. epsilon is derived from the profile as epsilon(z) = Cmu^0.5 * k(z) * d(U)/dz.
Input
| Name | Nickname | Description |
|---|---|---|
| Dirs | Wind directions as meteorological degrees (wind-from, clockwise from north, e.g. 0, 45, 90) or flow vectors. One solver case is created per direction; the profile magnitudes are rotated to each direction. Optional; default is flow toward +X. | |
| z/zR | List of normalized heights z/zR (z = height above ground, zR = boundary layer height). | |
| U/UR | List of normalized streamwise velocities U/UR at each height (UR = reference velocity at zR). | |
| k/UR^2 | List of normalized turbulent kinetic energies k/UR^2 at each height. | |
| zR | Boundary layer height zR (m), used to de-normalize z/zR. Optional; default is 250. | |
| Reference Velocity (UR) | UR | Reference velocity UR at zR (m/s), used to de-normalize U/UR and k/UR^2. Optional; default is 7.8. |
| Cmu | Turbulence model constant Cmu used to derive epsilon from the profile. Optional; default is 0.09. |
Output
| Name | Nickname | Description |
|---|---|---|
| Boundary Conditions | BC | Manual-profile inflow boundary conditions (single direction); plug into the wind case BC input. |
| Vectors | Resolved unit flow vector for the inflow direction. |