Flow situations in biofluid mechanics involve the flow through tubes that change in size with time (such

Question:

Flow situations in biofluid mechanics involve the flow through tubes that change in size with time (such as blood vessels) or are supplied by an oscillatory source (such as a pulsing gland). The volume flow rate Q in the tube will be a function of the frequency ω, the tube diameter D, the fluid density ρ, viscosity μ, and the pressure gradient (Δp)/(Δl). Find the π- roups for this situation in the form