When I tested my last sail, I saw a lot of promise, but it still didn't catch enough wind to move me unless I held it over my head. I didn't think much about where the air would move fastest, but it makes sense that the stationary ground would impede movement.
I bought an inexpensive anemometer (air flow sensor) and held it at different heights. It wasn't easy to measure three times at different levels because the wind came in gusts, so I discarded many of my trials if I felt the speed suddenly shift.
Field notes
I graphed the first six readings, confirming my hypothesis that air moves faster as I measure higher. The first three readings were near a six-story building, and the last three were from the middle of a wide road with fewer obstructions than near my apartment building.
I acknowledge that my readings are not a conclusive scientific study. Still, they are reliable enough that I feel comfortable developing sails that capture more air at their top than the bottom.
Speed in M/s Wind graphs
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2022-09-12
I bought an inexpensive anemometer (air flow sensor) and held it at different heights. It wasn't easy to measure three times at different levels because the wind came in gusts, so I discarded many of my trials if I felt the speed suddenly shift.
I graphed the first six readings, confirming my hypothesis that air moves faster as I measure higher. The first three readings were near a six-story building, and the last three were from the middle of a wide road with fewer obstructions than near my apartment building.
I acknowledge that my readings are not a conclusive scientific study. Still, they are reliable enough that I feel comfortable developing sails that capture more air at their top than the bottom.
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2022-09-12
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