Class: BE310
Group: T2
Members: Ed Hwu, Erica So, Han Joon Kim, Navy Ros
Date: May, 2002
Abstract:
In this experiment, a stenosis model with removable bypass was created.
To improve upon the design from previous years, the stenosis was created
by clamping the tubing to allow for a stenosis of variable lengths and
dimensions. Three different bypass lengths were constructed as well.
The effects of different bypass length, with the stenosis kept constant,
were examined. From dimensional analysis, the Euler’s number must
be a function of NRe and the L/D ratio of the bypass. Finally, a
bubble injection technique was tested as a possible method to directly
measure flow in the bypass. It was found that the flow calculated
using the bubble injection technique was significantly different than the
measured flow in the bypass. The L/D ratio of the bypass did not
affect the Eu vs. NRe significantly. The resistance of the system
increased when a bypass was added to the system and was found to decrease
with the addition of a bypass. By adding a bypass, the total flow
was increased by ~50% for each pressure, with the shortest bypass giving
the greatest increase. Lastly by experimental means Euler’s Number
was found to be a linear function of (NRe, L/D0.2).