What is the Significance of Reynolds Number?

Answer: In certain fluid flow scenarios, using Reynolds number (Re) aids in the prediction of flow patterns. At low Reynolds Numbers, laminar (sheet-like) flow dominates, whereas at high Reynolds numbers, turbulence dominates. 

For just an ideal gas, it is determined by pressure, temperature, characteristic length, and the mainline velocity.

The Reynolds number is indeed an essential feature in purified water distribution systems because it aids in maintaining the appropriate flow and preventing biofilm development. Purified water is widely employed in the pharmaceutical sector, research labs, laser cutting, & automotive applications.