The buildup of plaque on the walls of an artery may decrease itsdiameter from 1.

Question

The buildup of plaque on the walls of an artery may decrease itsdiameter from 1.1 cm to 0.81 cm. Thespeed of blood flow was 14 cm/s beforereaching the region of plaque buildup. (a) Find the speed of blood flow within theplaque region.  cm/s
(b) Find the pressure drop within the plaque region. (Assume thatblood has the same density as water.) in Pa (a) Find the speed of blood flow within theplaque region.  cm/s
(b) Find the pressure drop within the plaque region. (Assume thatblood has the same density as water.) in Pa

Explanation / Answer

       Given thatthe diameter isd1 = 1.1cm =1.1*10-2m and d2 = 01.81cm =0.81*10-2m         Initial speed ofthe blood is U1 = 14cm/s -----------------------------------------------------------------         From the equationof continuity A1*U1 = A2*U2                                              *(d1/2)2*U1=  *(d2/2)2*U2                                                                U2 = U1*(d1/d2)2                                                                       =-------- m/s           Thepressure difference is P1-P2 =(1/2)(U12 -U22)                                                                 =--------- N/m     where is the density ofthe blood .      

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---