The Reynolds number for a particular micro channel flow is found to be Re = 2.
a. If all channel dimensions (length, width, and height) are reduced by a factor of 10, and the time required for a particle to traverse the length of the channel is invariant, what is the value of Re for the smaller channel?
b. If the flow velocity is constant for both channels, rather than the time scale, what is the value of Re for the smaller channel?