Losses when Object is moving through Pressurized Air

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In a pressurized air tunnel, an object moving at 200-300 MPH experiences losses primarily due to drag, but additional factors include heat losses from viscous dissipation and potential thermal gradients if the object and air are at different temperatures. The discussion also draws an analogy to a floating puck in an air hockey game, where losses are mainly attributed to drag from air movement and frictional losses. The heat generated from viscous dissipation is noted as a significant factor in both scenarios. Understanding these losses is crucial for accurate design considerations in engineering applications involving high-speed objects in pressurized environments. Overall, heat losses and drag are key components to consider in such designs.
Omega037
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I am a grad student(engineering, but not mechanical), and I have a rather difficult question for an actual design I am working on. If you have an object moving 200-300MPH in a pressurized air tunnel(5-10 psi), besides the losses due to drag, what are the losses, if any, that occur on the object. I imagine there would be some heat losses, but I am trying to find out if they would be significant.

For an analogous problem, what losses would there be on a floating puck in an air hockey game that is moving 0.1 m/s and floating above the surface(small holes push air upwards, making the puck hover). Just the drag of the air moving across the top and around the sides?
 
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what kind of losses?? You already pointed out frictional losses.

heat loss? yes, if the two things are at different temperatures. I think it ll rather heat up from viscous dissipation.
 
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