arizau
Bronze Member
- May 2, 2014
- 2,485
- 3,869
- Detector(s) used
- Beach High Banker, Sweep Jig, Whippet Dry Washer, Lobo ST, 1/2 width 2 tray Gold Cube, numerous pans, rocker box, and home made fluid bed and stream sluices.
- Primary Interest:
- Prospecting
I'm not sure if this has been discussed before but it occurs to me that the length of the device and the concurrent increased scoop opening size has a relationship with the minimum necessary operating flow speed in that a longer one may still work efficiently in a slightly slower current than what is required by a shorter version of the same model.* Is this the case?
*I think this relates to the venturi effect by increasing the pressure before the restrictions of the tubes and results in a proportionate speed up of water through the tube openings compared to the shorter sluices. https://www.google.com/webhp?source...1US513&ion=1&espv=2&ie=UTF-8#q=venturi+effect
*I think this relates to the venturi effect by increasing the pressure before the restrictions of the tubes and results in a proportionate speed up of water through the tube openings compared to the shorter sluices. https://www.google.com/webhp?source...1US513&ion=1&espv=2&ie=UTF-8#q=venturi+effect
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