I often open my balcony door and my front door to let fresh air into my apartment. I’ve noticed that the draft almost always flows from the balcony and out the front door. Shouldn’t the direction be random?
In: Physics
Also dependant on temperature differences or other concentration gradients impacting the flow
It’s pressure. Fluids, in this case air, move from an area of high pressure to an area of low pressure. It’s the same way wind is created, in this case you’re creating wind in your house be connecting areas of different pressure.
Prevailing wind outside is pushing the air in one direction without the window on the opposite side there is nowhere for the pushed air to go so the air only moves when two openings are there.
What hemisphere do you live in and which walls are the windows on?
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