MacroFlo Arrows don't add to 0

Works in conjunction with ApacheSim to provide bulk airflow analysis for passive/hybrid ventilation system design and simulation.
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benmorris99
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Joined: Sat Nov 22, 2014 9:03 pm

MacroFlo Arrows don't add to 0

Post by benmorris99 »

My project is tiny and consists of a simple cuboid for a building with a roof created using the auto roofing tool. The building has a single door and the roof has a single window. I have made a multi zone space and set the windows and doors to be open continuously. I tried to run analyses on it but the macro flow arrows in Vista Pro do not add up to zero.

The roof window has 0.3 coming in and 0.2 going out. The door has 0.0.

It is also complaining in micro flow mode that they don't match and so won't run simulations.

In MicroFlow it is saying 0.191 in and 0 out although this maybe running a different day and just be indicative of the same problem.

What is wrong?

Ben
DBishop138
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Re: MacroFlo Arrows don't add to 0

Post by DBishop138 »

Hey having the same problem. Tries resolving my simulation to finer time steps... but no joy.
Did you manage to solve this?
bbrannon4
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Re: MacroFlo Arrows don't add to 0

Post by bbrannon4 »

It's not an issue, it's likely correct and showing various levels of pressurization in the building.
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