Poor Tank Overflow Design
Poor Tank Overflow Design
(OP)
A properly designed settler or clarifier has an overflow launder to distribute the upward velocity evenly around the tank. But when a cylindrical tank is installed with a single overflow outlet, say with an outlet velocity 10X the upflow velocity, what is the magnitude of the effect on upflow velocity near the outlet. I would think it would be higher and the upflow on the far side lower by the Bernoulli effect. Also, the surface velocity toward the outlet from the far side of the tank would probably be zero. Any thoughts on how much penalty on uniformity of upward flow?





RE: Poor Tank Overflow Design
If you are trying to remove light particles like for example water or wastewater applications, you are probably looking at 75-90% penalty.
Don't forget that you should have some type of inlet flow distribution as well.
RE: Poor Tank Overflow Design
RE: Poor Tank Overflow Design