动压计算器 — 公式
## Dynamic Pressure
Dynamic pressure represents the kinetic energy per unit volume of a flowing fluid. It is the key scaling parameter for aerodynamic forces.
### Formula
**q = 0.5 × rho × V²**
where rho is the fluid density and V is the freestream velocity. All aerodynamic forces (lift, drag) are proportional to dynamic pressure, which is why it appears in every force coefficient definition.
Dynamic pressure represents the kinetic energy per unit volume of a flowing fluid. It is the key scaling parameter for aerodynamic forces.
### Formula
**q = 0.5 × rho × V²**
where rho is the fluid density and V is the freestream velocity. All aerodynamic forces (lift, drag) are proportional to dynamic pressure, which is why it appears in every force coefficient definition.
计算示例
Air at sea-level standard density flowing at 100 m/s.
- q = 0.5 × 1.225 × 100²
- q = 0.5 × 1.225 × 10000
- q = 6125 Pa = 6.125 kPa