?When blood flows along a blood vessel, the flux \(F\) (the volume of blood per unit
Chapter 3, Problem 48(choose chapter or problem)
When blood flows along a blood vessel, the flux \(F\) (the volume of blood per unit time that flows past a given point) is proportional to the fourth power of the radius \(R\) of the blood vessel:
\(F=k R^{4}\)
(This is known as Poiseuille’s Law; we will show why it is true in Section 8.4.) A partially clogged artery can be expanded by an operation called angioplasty, in which a balloon-tipped catheter is inflated inside the artery in order to widen it and restore normal blood flow. Show that the relative change in \(F\) is about four times the relative change in \(R\). How will a 5% increase in the radius affect the flow of blood?
Equation Transcription:
Text Transcription:
F
R
F = kR^4
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