EngiRef / Fluids Engineering Formula
Drag Force
Drag Force: Aerodynamic or hydrodynamic drag force. A Fluid Dynamics formula in fluids engineering. Variables Fᴅ, ρ, v, Cᴅ and A, each with SI and imperial…
Fluid Dynamics
Specification
- Name
- Drag Force
- Discipline
- fluids
- Category
- Fluid Dynamics
- LaTeX
- F_D = \frac{1}{2} \rho v^2 C_D A
- Description
- Aerodynamic or hydrodynamic drag force
- Can solve for
- Fᴅ, ρ, v, Cᴅ, A
- Tags
- drag, force, aerodynamic, hydrodynamic
Variables
| Symbol | Name | Unit | Si Unit | Imperial Unit |
|---|---|---|---|---|
| Fᴅ | Drag Force | N | N | lbf |
| ρ | Fluid Density | kg/m³ | kg/m³ | - |
| v | Velocity | m/s | m/s | ft/s |
| Cᴅ | Drag Coefficient | - | - | - |
| A | Frontal Area | m² | m² | ft² |
Common questions
- What is the Drag Force formula?
- Aerodynamic or hydrodynamic drag force. It sits under Fluid Dynamics, Fluids engineering in the EngiRef reference.
- What do the symbols in the Drag Force formula mean?
- In Drag Force, Fᴅ is drag force in N; ρ is fluid density in kg/m³; v is velocity in m/s; Cᴅ is drag coefficient; A is frontal area in m².