Question 1 [25 marks]
(a)
Derive the Windkessel governing equation for pressure fluctuation in a compliant
aorta
$$
\frac{Q}{C} = \frac{dP(t)}{dt} + \frac{P(t)}{RC}
$$
defining all terms used in the derivation.
[3]
(b) Using the equation given in Part (a) above, show that the general solution for the
aortic pressure is given by
$$
P(t_c) = e^{-t_c/RC} \int_0^{t_c} \frac{Q}{C} e^{t/RC} dt + P(0)e^{-t_c/RC}
$$
[3]
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Q1
Figure Q1