bioe104-Fall_2007-mt2-Mofrad-exam

bioe104-Fall_2007-mt2-Mofrad-exam - BE104 Midterm I Take...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
BE104 Midterm I Take home, due Friday April 20 th at 5PM – turn in to Terry at 469 Evans 1. (_____ of 15 points ) Parallel plate flow chambers are used examine the effect of shear stresses on endothelial cells. The chambers are rectangular with tissue culture medium (viscosity equal to 0.0085 g cm -1 s -1 at 37 C) flowing through a gap of thickness h. The chamber width is w (2 cm). Endothelial cells are grown on glass slides which make up the lower surface of the channel. The pump used for these experiments can pump the medium at 2 cm 3 s -1 . v x (y) h y x In order to expose endothelial cells to a shear stress of 15 dyne cm -2 , determine the channel thickness h (in mm). 2. An analysis of flow in joints suggests that flow is induced by a pressure gradient and the relative motion of one cartilaginous surface over another. To understand the forces acting on the joint, the geometry has been simplified to the case of two parallel plates separated by a gap h. The fluid is Newtonian. A pressure gradient
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/16/2009 for the course BIO ENG 104 taught by Professor Mofrad,m during the Spring '08 term at University of California, Berkeley.

Page1 / 3

bioe104-Fall_2007-mt2-Mofrad-exam - BE104 Midterm I Take...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online