FC_vertical_cylinder
The procedure FC_vertical_cylinder(Fluid$, T_s, T_infinity, P, L, D : h, Nusselt, Ra) returns the heat transfer coefficient, Nusselt number and Rayleigh number for an vertical cylinder of length L and diameter D. The units of the inputs and outputs depend on the unit settings in EES. The magnitude of gravity is assumed to be 9.807 [m/s^2].
Inputs:
Fluid$ - string name of any fluid in the EES database. The fluid can be an ideal gas or a real fluid
T_s - surface temperature of the plate in [C], [K], [F], or [R]
T_infinity - bulk temperature of the fluid in [C], [K], [F], or [R]
P - ambient pressure in [Pa], [kPa], [bar], [MPa], [atm], or [psia]
L - length of the cylinder [m] or [ft]
D - diameter of the cylinder [m] or [ft]
Outputs:
h - heat transfer coefficient in [W/m^2-K] or [Btu/hr-ft^2-R]
Nusselt - Nusselt number [-]
Ra - Rayleigh number [-]
Notes:
The procedure FC_vertical_cylinder is primarily responsible for determining the fluid properties, and calculating the Rayleigh and Prandtl numbers. Once these values are found, the non-dimensional procedure FC_vertical_cylinder_ND is called to calculate the Nusselt number as described in section 6.2.4 of Nellis and Klein. FC_vertical_cylinder, in turn, uses the Nusselt number to calculate the coefficient of heat transfer.
Example:
$UnitSystem SI deg K J Pa
P=101300 [Pa]
T_s=310 [K]
T_infinity=300 [K]
D=0.09 [m]
L=1 [m]
Fluid$='water'
Call FC_vertical_cylinder(Fluid$, T_s, T_infinity, P, L, D : h, Nusselt, Ra)
{Solution: h=439.8 [W/m^2-K], Nusselt=725.9, Ra=2.804E+11}