Reynolds Number

fluids-reynolds

Reynolds Number

fluids

Fluid Dynamics

Re = \frac{\rho vD}{\mu}

Dimensionless number indicating laminar or turbulent flow

Internal flow in circular pipes: laminar <~ 2300, turbulent >~ 4000

[
  {
    "symbol": "Re",
    "name": "Reynolds Number",
    "unit": "",
    "siUnit": ""
  },
  {
    "symbol": "ρ",
    "name": "Density",
    "unit": "kg/m³",
    "siUnit": "kg/m³",
    "imperialUnit": "slug/ft³"
  },
  {
    "symbol": "v",
    "name": "Velocity",
    "unit": "m/s",
    "siUnit": "m/s",
    "imperialUnit": "ft/s"
  },
  {
    "symbol": "D",
    "name": "Characteristic Length",
    "unit": "m",
    "siUnit": "m",
    "imperialUnit": "ft"
  },
  {
    "symbol": "μ",
    "name": "Dynamic Viscosity",
    "unit": "Pa·s",
    "siUnit": "Pa·s"
  }
]

Re, ρ, v, D, μ

reynolds, laminar, turbulent, flow

false