Bernoulli's Equation

  • Thread starter skaboy607
  • Start date
Hi,

Hopefully a very simple question for someone that knows; We know from Bernoulli's principle that an area of high velocity creates an area of low pressure and vice versa. My question is how is this created?

Thanks
 

russ_watters

Mentor
18,583
4,817
It is a manifestation of conservation of energy. And to be more accurate and descriptive, Bernoulli's principle states that the total pressure (ie, the energy) is constant along a streamline. So when you have an area of higher velocity, you get a higher velocity pressure - and by conservation of energy, the static pressure must be lower.
 

tiny-tim

Science Advisor
Homework Helper
25,790
246
… pressure (ie, the energy) …
Just to enlarge on that:

pressure = force/area,

so pressure/density = force times distance/mass = work done/mass = energy gained/mass :wink:
 

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top