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Reynolds number is very important and probably most frequently used non-dimension number
in fluid dynamics. To find out if the flow of gas, air, watter or any other fluid is
laminar or turbulent calculation of Reynolds number (Re) is necessary.
Reynolds number is one of the most frequently used non-dimensional parameter which well describes
flow regime, i.e. relation between inertia and viscous forces. If inertia forces are much bigger,
Re>2320, turbulent flow will occur, and if viscous forces are big enough in compare to inertia,
Re<2320, laminar flow will occur.
Reynolds number calculator can be used for ALL FLUIDS and flow speeds without any restriction in
all but one case when fluid is considered is ideal:
If you want to enter either G - mass flow rate or mi - dynamic viscosity and you don't
know rho - density, but you know T - temperature, p - pressure and R - gas constant.
If this is the case than ideal gas state equation is used and calculator can be used only
for ideal gases.
Read about used theory for Reynolds number calculation.
note: calculator requires Java.
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