Surface Tension: Estimating Droplet Radius with a Sprayer

Thread starter Nuclear on the Rocks
Start date Apr 30, 2007
Tags

Radius Surface Surface tension Tension

AI Thread Summary

To estimate the radius of each droplet produced by a sprayer, equate the volume of the liquid exiting the sprayer to the total volume of the smaller droplets formed. Given a liquid density 'p' and a sprayer hole radius 'r', the volume of the large drop can be calculated. This volume is then divided by 'n', the number of equal-sized droplets, to find the volume of each droplet. Using the volume formula for a sphere, the radius of each droplet can be derived. This method effectively allows for the estimation of droplet size based on the initial conditions of the sprayer.

Apr 30, 2007

Nuclear on the Rocks

i have a question on surface tension.
if i had a a sprayer which squirted a liquid of density p through a hole of radius 'r', following which the liquid breaks into 'n' equal-sized droplets.can i estimate the radius of each droplet??

Physics news on Phys.org

Apr 30, 2007

mukundpa

Homework Helper

Yes equate the volume of large drop to the volume of n small drops.

Thread '1:1 versus 2:1 Mechanical Advantage debate'

The rope is tied into the person (the load of 200 pounds) and the rope goes up from the person to a fixed pulley and back down to his hands. He hauls the rope to suspend himself in the air. What is the mechanical advantage of the system? The person will indeed only have to lift half of his body weight (roughly 100 pounds) because he now lessened the load by that same amount. This APPEARS to be a 2:1 because he can hold himself with half the force, but my question is: is that mechanical...

View full post »

Thread 'Newton's first law?'

Some physics textbook writer told me that Newton's first law applies only on bodies that feel no interactions at all. He said that if a body is on rest or moves in constant velocity, there is no external force acting on it. But I have heard another form of the law that says the net force acting on a body must be zero. This means there is interactions involved after all. So which one is correct?

View full post »

Thread 'Free fall of person in a sled to direct horizontal motion by atmospheric resistance'

Let there be a person in a not yet optimally designed sled at h meters in height. Let this sled free fall but user can steer by tilting their body weight in the sled or by optimal sled shape design point it in some horizontal direction where it is wanted to go - in any horizontal direction but once picked fixed. How to calculate horizontal distance d achievable as function of height h. Thus what is f(h) = d. Put another way, imagine a helicopter rises to a height h, but then shuts off all...

View full post »