Spirit flow-x, Справочник по функциям

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Flow-X─ Function Reference
4-221
Flow-X General functions - fxISO5167_LongRadiusNozzle
location Where the pressure has
fully recovered (

3
).
Density Exponent. This factor is used when density
correction is enabled. The formula
1/

will be used when the input value
is set to 0, else the input value will be
used.
For more details refer to section
'Density correction'.
- 0
Fluid The type of fluid being measured
1: Gas
2: Liquid - 1
Year Of Edition 1: Edition 1991
2: Edition 1998
3: Edition 2003
Only used for calculation of pressure
loss, with options 1 and 2 giving the
same result - 3
Function outputs Remark EU
Status 0: Normal (No error condition)
1: Input argument out of range
2: No convergence -
Mass flow rate The calculated mass flow rate tonne/h
Beta ratio Nozzle to pipe ratio at upstream temperature
Nozzle diameter At the upstream temperature
Pipe diameter At the upstream temperature
Upstream pressure Pressure at upstream tapping (p
1
) bar(a)
Pressure at
downstream tapping Pressure at downstream tapping (p
2
) bar(a)
Recovered
downstream pressure Fully recovered downstream pressure (p
3
) bar(a)
Upstream temperature Temperature at upstream tapping (t
1
) °C
Temperature at
downstream tapping Temperature at downstream tapping (t
2
) °C
Downstream
Temperature 'Fully recovered' downstream temperature (t
3
) °C
Upstream density Density at upstream tapping (

1
) kg/m3
Density at downstream
tapping
Pressure at downstream tapping (

2
)
kg/m3
Downstream density
'Fully recovered' downstream density (

3
)
kg/m3
Reynolds number The pipe Reynolds number (this is the Reynolds number
upstream of the Long Radius Nozzle and not the one within the
device throat itself -
Discharge coefficient -
Expansion Factor -
Velocity of Approach
Pressure Range 0: Pressure is in valid range
1: Pressure is out of valid range -
Reynolds Range 0: Reynolds number is in valid range
1: Reynolds number is out of valid range -
Diameter Range 0: Device and pipe diameter and Beta ratio in valid range
1: Device diameter, pipe diameter and/or Beta ratio out of valid
range -