Thermimage (version 4.0.1)

Reynolds: Calculates the Reynolds number.

Description

Calculates the Reynolds number, a unitless measure.

Usage

Reynolds(V, L, v)

Arguments

V

Air velocity in m/s

L

The characteristic dimension, usually the vertical dimension. For reference, a cylinder's characteristic L would be its height, assuming it is standing on its end This L should be the same L as is used for the convective coefficient calculation

v

The kinematic viscosity returned from function airviscosity (Ta).

References

Blaxter, K. 1989. Energy Metabolism in Animals and Man Gates, D. M. 2003. Biophysical Ecology. Dover Publications, Mineola, New York. 611 pp.

Examples

# NOT RUN {
## The function is currently defined as
function (V, L, v) 
{
  v<-airviscosity(Ta)
  Re<-V*L/v
  }

# Typical values for Reynolds numbers range from 6.6 to 6.6e+5 

# Example calculation:
V<-1
L<-1
Ta<-20
v<-airviscosity(Ta)
Reynolds(V, L, v)

# }