Cant find an appropriate fluids equation

[ben.herbener]

Hi guys this is my first post on here, and I like the look of it so far. I've tried to look everywhere for an approprate equation for this question but I can't come up with one, or maybe I am overlooking something.

What is the minimum power (W) required to pump blood in the human body? Assume a total average pressure rise across the heart of 120 mm Hg.
Given: 80 beats per minute, stroke volume of 70ml, volumetric output is 336 liters per hour.

Thanks,
Ben

 

[Physics Monkey]

Hi Ben,

Welcome to Physics Forums! It is our policy not to simply give out the answer, but I will give you a good page to help you get started: http://www.rwc.uc.edu/koehler/biophys/3a.html

Let me know if you have any more questions.

 

[ben.herbener]

Thank you very much for that link it was very helpful. I didn't expect a straight out answer, I was just quoting the problem exactly.

I got 1.49 watts, which sounds about right.


Thanks,
Ben