Will the temperature drop down if wind flows throung a wallof many small holes? explain?long answer
Answers
Yes. Due to volume and thermic capacity change. Air going through a tiny hole, has to compress by some factor, heating up in the process which leads to a thermodynamic potential discrepancy. It means that it creates a localised rise in temperature which is driven towards the ambient average so it loses a part of the energy. When it comes out the other side it will expand again to previous volume but as it lost a part of the energy, the left over energy will be dispersed equally over the area of expansion, making the air feel cooler. It all depends on the compression and time that the air has to lose energy. This is basically how an air conditioner works. Air is being compressed in the system, passed on to a radiator. As more of it is trapped in a small space the heat capacity results in a temperature rise. It gives up the energy to stay in equilibrium with the ambient avarege. When its released, it starts to occupy the same space/volume as before, but the energy balance is different, so the air feels cold. Well at least thats how I understood how it works.
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