In turbulent flow, particles that are considerably smaller in size than Kolmogorov’s microscale have little effect on the turbulent characteristics of the flow, provided that their volume fraction is...

In turbulent flow, particles that are considerably smaller in size than Kolmogorov’s microscale have little effect on the turbulent characteristics of the flow, provided that their volume fraction is small. Consider an experiment in which water at room temperature is to flow in a microtube that has an inner diameter of 0.4 mm. Water should flow with a velocity in the 10–20 m/s range. Water is to pass through filters to remove troublesome suspended particles. Determine the maximum particle size that can pass through the filters.