[MNMK]

Hello everybody,

I am simulating a water Tank in Transient. I would like the water flow at inlet reduce to Zero when the air pressure in the Water Tank (on the Top) reaches 3 bar. Therefore, I am trying to write an expression for pressure at a point to combine with mass flow at inlet. (see below)


AirP --> areaAve(Pressure)@User Point 1

INLET Massflow--> 0.05822[kg s^-1]*if(PAir<3[bar],1,0)

but It does not recognize the User Point 1.

May you give me a Tip or another solution?


Best regards,

[Opaque]

You need to show the error message you are getting.

It makes no sense to compute areaXXX()@Point.. Does a point have an area?

There is a function to probe the value of a variable at a point, read documentation for details, such as

MyPressureAtMyLocation = probe(Pressure)@Point

Now, as far as I recall "Point" must be a point locator created either as a source point, or an existing coordinate-based monitor points. I do not recall if expressions support "Ansys CFX Solver" user locations.