Odpowiedź:
Profil prędkości wiatru w RWIND Simulation, zgodnie z normą ASCE 7-16 [1] jest obliczany na podstawie równ. 26.10‑1. The coefficients and basic wind speed in this equation below are incorporated in the wind pressure equation.
Velocity Wind Pressure (Imperial)
| qz | Ciśnienie prędkości na wysokości z [lb/ft²] |
| KZ | Współczynnik ekspozycji dla ciśnienia dynamicznego |
| Kzt | Współczynnik topograficzny |
| Kd | Współczynnik kierunku wiatru |
| Ke | Współczynnik wysokości nad poziomem morza |
| V | Bazowa prędkość wiatru [mph] |
qz = 0.00256 Kz Kzt Kd Ke V2
We must reference this equation to calculate the inlet velocity relative to elevation for the RWIND Simulation CFD wind tunnel. To consider only velocity rather than pressure from this equation, the basic wind speed is multiplied by the square-root of each coefficient. Notice the velocity variable in Eq. 26.10‑1 is squared which requires the square root of the coefficients to be considered.
Inlet Velocity
Because the ASCE 7-16 standard does not address wind CFD analysis and magnitude of the required inlet velocity, it is difficult to draw comparisons. Therefore, this is the closest estimate for calculating the RWIND Simulation inlet wind velocity per the code.