Hello,
In the simulation tools there's a cylinder tank simulation but this is for a vertical tank.

I'm curious if anybody has any experience in simulating a horizontal tank? I'm trying to get the maths done, but I think my maths knowledge has been gone too far away ...

Hi jds,

With pythagoras theorem I get that the change in tank level in one scan time is
where

F is in flow minus out flow
l is cylinder length
r is cylinder radius
L is tank level
t is scantime

Note that this is infinity when L = 0 and L = 2r.

/Claes

thanks again Claes!
Is it correct that the first multiply needs to be an equal sign?
Can I put this formula in one way or an other in a Carithm to distilate the level out of it?

No, this is the change in level so the level is

L = L + F * t / (2 * l ...

In a CArithm it would be something like
where you connect A1 to the net flow, A2 to a ScanTime object, and insert constants for cylinder length in A3 and radius in A4.
Level on output OA1.

You first have to test that L or L - 2r is not close to zero cause this will give an invalid value.

/Claes

Claes,

worked like a charm

Thanks!