[bogate]

Hello,

I have a radial gap for which I want to compute the mass flow rate in both positive radial direction and negative radial direction.

I have put a surface in this gap using an iso-clip. Then I use two iso-clips of radial velocity(positive and negative) to separate my radial inflow surfaces from my radial outflow surfaces. Each radial flow surface is assigned to a report definition to measure the mass flow rates.

Now i want to update these radial inflow/outflow iso-clips at each iteration. Is this something that happens automatically or do I need to redo them each time?

I tried to run the commands:

surface/iso-clip radial-velocity gap-velocity-negative gap-surface -5000 0

to generate my iso-clip surfaces, but after one iteration i get the error that a surface with that name already exists and i cant update them.

Any help is greatly appreciated!!

[AlexanderZ]

everything depends on how are you going to use that iso-surfaces
at least two possible ways here:
1. on each iteration firstly delete your gap-surface and later execute the line you've showed
2. change the name of surface was gap-surface, but it could be gap-surface-00001 , where 00001 is time. In this case you will have a huge amount of surfaces
to add time you may use this line

(ti-menu-load-string (format #f "surface iso-clip radial-velocity gap-velocity-negative gap-surface-~a -5000 0"(rpgetvar 'flow-time)))