Coanda Effect - How Sails Really Work - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > Skills and Seamanship > Learning to Sail
 Not a Member? 


Reply
 
LinkBack Thread Tools
  #1  
Old 09-18-2004
Junior Member
 
Join Date: Mar 2003
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
dtsails is on a distinguished road
Coanda Effect - How Sails Really Work

Check this out!
http://humane.sourceforge.net/published/coanda_effect.html
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 09-19-2004
Senior Member
 
Join Date: Dec 2002
Posts: 140
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 13
aflanigan is on a distinguished road
Coanda Effect - How Sails Really Work

Pointing out the incompleteness of the common or popular understanding of lift, based on bernoulli principle and the idea that the air flowing over either side of the wing must traverse the wing in the same time (the molecules that part at the leading edge must "meet" again at the trailing edge) has become the equivalent of shooting fish in a barrel for amateur and professional aerodynamicists. It started with an article in Physics Teacher magazine in 1972 by N.F. Smith. There followed a long line of revisionists who have tried their darndest to undo the popular misconceptions regarding the physics of lift.

Here''s a whole passel of variations on Raskin''s article. I like Anderson and Eberhardt''s article and book best because they do a little clearer job of explaining what is going on and where the misconceptions with the popular model are. Plus they cut right to the chase: What do Newton''s laws tell us about flight and lift?

http://www.aa.washington.edu/faculty/eberhardt/lift.htm

Other takes on this theme:

http://www.uni-frankfurt.de/~weltner/Flight/PHYSIC4.htm

http://www.physics.ubc.ca/~waltham/air/FwB.pd

Finally, here''s another book (besides Anderson et al.) you can look for at the local library:

http://mitpress.mit.edu/catalog/item/default.asp?tid=4921&ttype=2

Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Windward performance deseely General Discussion (sailing related) 21 04-01-2012 03:42 PM
Sloop, Cutter or Ketch jsgsail Boat Review and Purchase Forum 17 12-26-2008 03:47 PM
New to Sailing, please Help =) xyris Learning to Sail 19 11-17-2008 09:30 AM
Ketch/Yawl Handling svsymphony Seamanship & Navigation 19 07-05-2008 02:19 AM
diffrent rigs? (schooner, ketch, cutter, sloop) jbarros Boat Review and Purchase Forum 2 07-09-2003 05:10 PM


All times are GMT -4. The time now is 07:52 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.