BENG112B_2009_HW5

# BENG112B_2009_HW5 - 3 , the height of the pink region is...

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BENG 112B BIOMECHANICS S 2009 Homework #5 Due Tuesday 5/19 before class Analysis Problem: As in Homework 2, you have a system that obeys the Navier-Stokes equation (shown at right in pink) and has a body force. The pressure at the top plate is 100 mm Hg and the bottom plate is fixed but permeable to allow the flow of ions to the blue material below it. The pressure within the blue material is 95 mm Hg. You are interested in measuring the mass flow rate (m) of NaCl ions, knowing that the concentrations in the pink and blue regions are 300 and 200 mM, respectively. You also know that the density is 1.1 g/cm
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Unformatted text preview: 3 , the height of the pink region is 0.1 cm, the system is at 37 o C, the permeability of the interface is 10 kg Pa-1 m-2 s-1 , and the dimension of the interface is 1 cm 2 . Solve the Navier-Stokes pressure distribution at the interface and use that in the Starling equation to determine the mass flow rate of the ions across the interface, just as oxygen ions diffuse in the blood stream Design Problem: Design a technique to measure the pulse pressure wave speed c in your arteries. Describe the measurement principle, the actual measurements required, and outline the type of equipment necessary. ....
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## This note was uploaded on 09/17/2009 for the course BENG BENG 112B taught by Professor Engler during the Spring '09 term at UCSD.

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