Add a Media Piece
default edit
Back to the Gallery
This will be replaced by the player.

Title: Empty a Bottle

Description: The water will flow out of the top faster than the hole in the bottom. When the water flows out of the top, its streamlines follow the smooth contour (a gradual contraction) of the bottle and the flow stays laminar. Conversely, when it leaves from the bottom, the streamlines have no contour to follow and the flow is slowed.

Credits: Reimi Yonekura, Rich Wlezien, Erich Tisch, NSF


Web Page:

Contributed By: Erich Tisch

The eFluids editor for videos is G. M. "Bud" Homsy (
and for images is Jean Hertzberg (
Please contact them if you have any problems, questions, or concerns related to the galley or videos and images.
© Copyright on the videos is held by the contributors.
Apart from Fair Use, permission must be sought for any other purpose.