Flow Vizualization by Condensation

October 11, 2007 at 1:36 pm | Posted in fluid dynamic | Leave a comment


Gallery of Fluid Mechanics: Flow Vizualization by Condensation: “The forces generated by a particular flow are very often the most important quantity of practical interest but usually remain ‘hidden’ without pressure gauges and other instrumentation. However, the condensation of ambient water vapor can be used to identify and observe regions of low pressure generated in many important air flows. While such condensation is somewhat rare, it is naturally occurring, i.e., no man-made instrumentation is required, can be directly related to the physics, and is aesthetically appealing. The physical mechanism leading to condensation (in typical airflows) is always caused by a significant lowering of the air pressure and therefore the temperature of the air and any water vapor present in the air. If the ambient air is sufficiently humid, , the drop in the temperature is enough to place the water vapor in the two-phase regime resulting in the formation of a cloud. Condensation clouds can be generated in a number of specific situations. Each visualizes a different physical (flow) effect. A brief discussion of a few of the most common situations are found at the links below:

Advertisements

Leave a Comment »

RSS feed for comments on this post. TrackBack URI

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Create a free website or blog at WordPress.com.
Entries and comments feeds.

%d bloggers like this: