SampleFinal - 1. (5 points) Which one of the following...

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

View Full Document Right Arrow Icon
1. (5 points) Which one of the following organisms can propel themselves (effectively) in water? Justify your answer using appropriate non-dimensional groups and the implications thereof (i.e. don’t just guess based on intuition). To help with your answer, assume a density 10 3 kg m -3 , viscosity 10 -4 kg m s -2 and that an average velocity is 0.25 μm s -1 . (a) (b) fins (c) (d) 1 µ m 2. (10 points) Glycerin (a very viscous Newtonian fluid) is placed inside a cylindrical container that has a concentric rotating rod (see Figure a below). At distance R from the rotation axis, you place a blob of red dye and rotate the rod 20 times slowly counterclockwise until a red dye “zone” forms (see Figure b below). Answer the following questions using appropriate non-dimensional groups and the implications thereof (i.e. don’t just guess based on intuition). a) what will happen if you rotate the rod 20 times slowly and clockwise ? b) what will happen if you rotate the rod 20 times
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 09/22/2011 for the course CHBE 6200 taught by Professor Staff during the Spring '08 term at Georgia Institute of Technology.

Page1 / 2

SampleFinal - 1. (5 points) Which one of the following...

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