Previously, it was assumed that all raindrops fall at terminal velocity, a constant maximum speed that is determined by the interplay of gravity and drag. The velocity for individual drops is considered to be largely controlled by their size: larger drops fall faster than smaller drops, due to their greater mass.
www.newscientist.com/article/dn17147-superterminal-rain... www.newscientist.com/article/dn17147-superterminal-raindrops-break-speed-limit.html
This constant speed is its Terminal Velocity. ... the larger drops overtake the smaller drops to form larger drops until rain drops are formed. ...
www.eas.slu.edu/People/CEGraves/Eas107/Precip-Processes... www.eas.slu.edu/People/CEGraves/Eas107/Precip-Processes.doc
Explanation of terminal velocity as it applies to raindrops. Resource includes an interactive experiment allowing users to select a water drop size and see the corresponding terminal velocity. ... Terminal Fall Velocity...
www.grow.arizona.edu/Grow--GrowResources.php?ResourceId... www.grow.arizona.edu/Grow--GrowResources.php?ResourceId=146
SUMMARY TABLE - Typical Raindrop Sizes ... Drop Size Terminal Velocity ... Rain Type mm in m/sec miles/hr...
www.shorstmeyer.com/wxfaqs/float/rdtable.html
Raindrops, speed of a raindrop, raindrop shape and size, raindrops' terminal velocity ... Falling raindrops hit 5 to 20 mph speeds ... Then the drop reaches its terminal velocity and falls at that speed until it hits the ground. This simple view neglects updrafts, downdrafts, and other complications.
www.wonderquest.com/falling-raindrops.htm www.wonderquest.com/falling-raindrops.htm
The magnitude of the terminal velocity of an object is also affected by its orientation. A common misconception is the ... "Large raindrops, up to six millimeters in diameter, have terminal velocities of about 10 metres per second and so may cause considerable compaction and erosion of the soil by their force of impact."
hypertextbook.com/facts/2007/EvanKaplan.shtml
Terminal velocity of raindrops is dependent upon the size of the drop, among other things. Obviously the larger the drop, the faster it will fall. ... Beard, K.V. (1976) Terminal velocity and shape of clouds and precipitation drops aloft. Journal of Atmospheric Science. 33, 851-864.
www.madsci.org/posts/archives/2000-07/962626446.Ph.r.ht... www.madsci.org/posts/archives/2000-07/962626446.Ph.r.html
This final, constant velocity of motion is called a "terminal velocity", a terminology made popular by skydivers. For objects moving through a fluid at low speeds so that turbulence is not a major factor, the terminal velocity is determined by viscous drag.
hyperphysics.phy-astr.gsu.edu/hbase/airfri2.html
Previous studies have shown that terminal velocity raindrops striking a smooth water surface create oscillating bubbles that radiate significant underwater sound energy. ... This work deals with the real life situation of large raindrops of a size often present in heavy rainfall (4.6 mm diameter) striking a sloped water surface.
www.stormingmedia.us/24/2480/A248062.html
At the same time it provides a great environment for further research in the interesting world of this regular (3) 2. Theoretical background a. Terminal velocity of raindrops The terminal velocity of the raindrop is reached when gravitation, drag and buoyant forces acting on the drop, are balanced.
www.vaisala.com/integrators/raindrop-vel-shape-1007-web... www.vaisala.com/integrators/raindrop-vel-shape-1007-web-poster.pdf