EngiRef / Formulas

Drag Force

Aerodynamic or hydrodynamic drag force

Fluid Dynamics

Source Details

Id

fluids-drag

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

Variables
[
  {
    "symbol": "Fᴅ",
    "name": "Drag Force",
    "unit": "N",
    "siUnit": "N",
    "imperialUnit": "lbf"
  },
  {
    "symbol": "ρ",
    "name": "Fluid Density",
    "unit": "kg/m³",
    "siUnit": "kg/m³"
  },
  {
    "symbol": "v",
    "name": "Velocity",
    "unit": "m/s",
    "siUnit": "m/s",
    "imperialUnit": "ft/s"
  },
  {
    "symbol": "Cᴅ",
    "name": "Drag Coefficient",
    "unit": "",
    "siUnit": ""
  },
  {
    "symbol": "A",
    "name": "Frontal Area",
    "unit": "m²",
    "siUnit": "m²",
    "imperialUnit": "ft²"
  }
]
Solve For

Fᴅ, ρ, v, Cᴅ, A

Tags

drag, force, aerodynamic, hydrodynamic

Is Custom

false