![]() Typically if the Reynolds number is < 2300 then laminar model is used otherwise a turbulent model is used. The Reynolds number is a dimensionless quantity Μ is the dynamic viscosity ((SI units: Pa L is a characteristic length (depending on the application, it can be hydraulic diameter, geometry length etc) (SI units: m) V is the maximum flow velocity (SI units: m/s) Ρ is the density of the fluid (SI units: kg/m3) The choice of a turbulence model depends on the flow conditions, mainly on the Reynolds number (Re): ![]() Flow meters such as Bronkhorst low delta P are used widely nowadays.Before selecting one of the options from the dropdown menu, the first step is to determine whether your simulation occurs in the **laminar** or **turbulent** flow scheme.
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