Stalin Posted July 3, 2020 Report Share Posted July 3, 2020 How does VentSim determine whether the fan will work by blowing in air or exhausting air? I input the data from a fan (blowing) and VentSim simulates first as if the fan is exhausting air. Why does it happen? That way, I have to put the fan running in reverse mode. Quote Link to comment Share on other sites More sharing options...
Martin Griffith Posted July 5, 2020 Report Share Posted July 5, 2020 You need to set the direction on your fan. The assumed direction when you place the fan is the current direction of the airway. If it's not correct, then you need to reverse the direction of the fan. Do that by clicking on the Reverse button on the Fan tab, or click on the airway using the Reverse Tool. The Reverse Blade option is something else. This option maintains the direction of the fan, but reverses the blade rotation on the fan, running it in reverse. If you do this, then the fan will by default run at 50% of its defined performance. You can alter this factor in the Fan Editor. However, you would only use this option very rarely, it at all. From your description, it sounds like you want to reverse the direction of the fan, so you would use the Reverse Tool. Quote Link to comment Share on other sites More sharing options...
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