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iwould like to calculate the diameter of the air core in hydrocyclones by taking its photograph using high speed digital camera from aperspesx model. But i am told that the diameter thus obtained may not be the true diameter due to refraction of the lighgt rays from water and perspex. Any idea...

How are free and forced vortex formed? What factors are responsible for the formation of free anfd forced vortex?

How are free and forced vortex formed? i.,e what factors are responsible for the formation of free and forced vortices?

I am studying flow through stationary circular(round) pipe.The fluid enters the pipe with a constant velocity. the two surfaces of the pipe experience a pressure difference, the inner surfsce that of p and the outer surface P+dp. Due to this pressure gradient and the tendency of the liquid to...

Any idea how tangential velocity in a cyclone is calculated? and hence the tangential acceleration given the pressure drop> An example would be better

Any idea how forced vorted helps in lassification in hydrocyclones? Does it improve classification or deteriorate