Fan flow rate

  • Thread starter XIX
  • Start date
  • #1
XIX
11
0
Is there an equation with which I can estimate the flow rate a fan will generate at a set diameter, speed and angle of the blades? Assume that this is a simple box fan that you would put in your window.

I'm assuming that you would have to determine the axial speed of the air given the angle and rotational speed. Then multiply that by the area.
 

Answers and Replies

  • #2
russ_watters
Mentor
20,234
6,792
The angle isn't constant along the span: you need pitch, which is essentially the distance forward it would move if rotated once through jello.
 

Related Threads on Fan flow rate

  • Last Post
Replies
1
Views
4K
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
1
Views
905
Replies
1
Views
1K
  • Last Post
Replies
3
Views
4K
Replies
6
Views
6K
Replies
4
Views
8K
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
1
Views
680
Top