Volume of air in a treachea Help please

  • Thread starter Nellen2222
  • Start date
  • #1
55
0

Homework Statement


Reynolds number and the turbulence of trachael air flow

under the conditions of normal activity an adult inhales about 1.1l of air during each inhalation. using a stop watch, dTErmine the time for one of your own inhalations and hence estimate the volume flow in m^3/s through your trachea during inhalation. The diameter of the trachea is appx 25mm.


Homework Equations





The Attempt at a Solution



I converted 25mm to m = 0.025m
1.1l = 0.001 meters^3
I just cant seem to get the right "inahlation using a stopwatch". I used 0.3m^3/s but that didnt seem to be right at all. Can anyone help me? What is a reasonable vallue for this??
 

Answers and Replies

  • #2
Redbelly98
Staff Emeritus
Science Advisor
Homework Helper
Insights Author
12,133
160
... using a stop watch, dTErmine the time for one of your own inhalations ...

I just cant seem to get the right "inahlation using a stopwatch". I used 0.3m^3/s but that didnt seem to be right at all. Can anyone help me? What is a reasonable vallue for this??
What did you get for your inhalation time? If you don't have an actual stopwatch, a clock or watch that displays the seconds (in addition to hours and minutes), or one that has a seconds hand, would work.
 
  • #3
55
0
2.5 seconds per inahalation
 
  • #4
21,493
4,875
2.5 seconds per inahalation

If each inhalation contains 1.1 liters (1100cc) and requires 2.5 seconds, what is your inhalation rate in lites/sec (or cubic meters per second or cc/sec)?
 
  • #5
Redbelly98
Staff Emeritus
Science Advisor
Homework Helper
Insights Author
12,133
160
2.5 seconds per inahalation
Okay, that sounds totally reasonable. Now you just need to follow Chestermiller's line of questions. You have the amount of air in liters, and the amount of time in seconds. So next you need to calculate the rate in liters/second.
 

Related Threads on Volume of air in a treachea Help please

  • Last Post
Replies
1
Views
747
  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
3
Views
1K
Replies
1
Views
1K
Replies
11
Views
16K
  • Last Post
Replies
9
Views
3K
Replies
1
Views
2K
  • Last Post
Replies
8
Views
6K
  • Last Post
Replies
13
Views
5K
Replies
4
Views
8K
Top