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bif
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Its a while since I've done any motion calcs so I'm after some guidance.
I am vertically dropping a range of materials (size 8-20 mm) into a horizontal air stream in a pipe (pipe diammeter d , ~0.3m)
The horizontal air velocity in the pipe is 10 m/s
The particle bulk density ranges from 200-2500 kg/m3
The high bulk density material falls pretty vertical through the horizontal air stream and the low bulk density material get caught in the air and never lands (ie its carried off in the air stream). In between these 2 extremes, the material is deflected a certain distance along the pipe, with the lighter material moving furthest from the drop position in the horizontal plane.
I am trying to model this.
My known variables/constants are particle size, particle density, pipe diameter (ie vertical drop height), pipe velocity, air viscosity and gravity.
My unknowns are time it takes to hit the bottom of the pipe and how far in the horizontal direction has it moved, when the particle lands
Any advice on how I model this fall. Is it projectile motion, or should I be looking to utilise Stokes law, or both??
Thanks
I am vertically dropping a range of materials (size 8-20 mm) into a horizontal air stream in a pipe (pipe diammeter d , ~0.3m)
The horizontal air velocity in the pipe is 10 m/s
The particle bulk density ranges from 200-2500 kg/m3
The high bulk density material falls pretty vertical through the horizontal air stream and the low bulk density material get caught in the air and never lands (ie its carried off in the air stream). In between these 2 extremes, the material is deflected a certain distance along the pipe, with the lighter material moving furthest from the drop position in the horizontal plane.
I am trying to model this.
My known variables/constants are particle size, particle density, pipe diameter (ie vertical drop height), pipe velocity, air viscosity and gravity.
My unknowns are time it takes to hit the bottom of the pipe and how far in the horizontal direction has it moved, when the particle lands
Any advice on how I model this fall. Is it projectile motion, or should I be looking to utilise Stokes law, or both??
Thanks