MadSci Network: Physics
Query:

Re: maximum size of a hole that no water flows out?

Date: Tue Nov 24 10:53:52 2009
Posted By: Tetjana Ross, Faculty, Oceanography, Dalhousie University
Area of science: Physics
ID: 1255961444.Ph
Message:

Hi Jens,

For water not to flow through grid holes, the pressure driving the flow must be balanced by surface tension. Wikipedia gives a nice description of surface tension, how it works and the value for different liquids at different temperatures. The details of how large the holes could be and still hold back water depends on the pressure driving the flow. If the grid is on the bottom of a container, what matters is how much water is sitting above it. The second response on this webpage does the calculation for one small hole.

I hope this helps!
Cheers,
Tetjana


Current Queue | Current Queue for Physics | Physics archives

Try the links in the MadSci Library for more information on Physics.



MadSci Home | Information | Search | Random Knowledge Generator | MadSci Archives | Mad Library | MAD Labs | MAD FAQs | Ask a ? | Join Us! | Help Support MadSci


MadSci Network, webadmin@madsci.org
© 1995-2006. All rights reserved.