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Thank you. It is not to late. IT seems really interesting and useful.

Thank you for your answers, I will use your advices.

I mean the environment and inside temperature would be about 273k in both vessels. The vessels do not have any relevant isolation. I have complete freedom to design the size of the pipes but I have in mind something really small Diameter between 1-2mm Length of the pipe 10-20mm I want to...

Sorry zdas04, I forgot to mention that. This two vessel is a subsystem of microprpulsion system for nanosatellites. Do you know if I can simulate this system with HYSYS, at least an approximation?

The problem is in microgravity (about 0g) so I think the D'Arcy Wiesbach equation can't be used cause is based in ΔP=ρ*hf*g http://en.wikipedia.org/wiki/Darcy%E2%80%93Weisbach_equation

I'll try with D'Arcy Wiesbach equation. I hope it will work.

I am trying to calculate the needed time to transfer a certain mass of liquid butane at constant pressure (about 2bar) to another vessel at vacuum. The environment temperature is about 273K. I tried some equations but the results were wrong. Can someone indicate me which equations should I use...

I’m designing a nozzle and I am having some problems with calculation time. I am trying to do an external and time dependent simulation but the calculation time is too big. I tried to reduce the computation domain and personalize the mesh. If I reduce the computation domain the calculation time...

Hi, I am developing a cold gas propulsion system for space. At the moment I am working in a nozzle for the system. I need to know the limits of SolidWorks Flow Simulation. In my case I need to do the simulations in space conditions (vacuum) but Flow Simulation doesn’t allow vacuum. I had...