Density and viscosity

The program calculates the current density and viscosity, corrected for pressure and temperature as per the following expression:

Where:

 

P  = Absolute pressure [N/m2

P₀ = Reference pressure = 0.1013 x 106 [N/m2

K  = Bulk module = 2.1 x 109 [N/m2

T  = Current temperature [K

T₀ = Reference temperature 323.0 [ K

ρ₀ = Reference density = 988 [kg/m3

Ґ₀ = Reference viscosity = 0.00055 [kg/s/m)

α  = Constant = -0.0139 [K-1

β  = Constant = -5.47 x 10-4

 

Keyword *COOL introduces constants to the program which are suitable for the temperature range < 20 °C.