Strömungsabriss

13:55 Jan 14, 2007
This question was closed without grading. Reason: Other

German to English translations [PRO]
Tech/Engineering - Ships, Sailing, Maritime
German term or phrase: Strömungsabriss
Unfortunately, I don't have an exact context. I only know that the context refeers to water flowing within a boat, creating a 'stroemung', which might 'be cut off' at some point.
It does not concern airplane engines.
I know it is vague, but I would be grateful for any suggestions.
Thanks !
Joern Gaedcke
Singapore
Local time: 13:13


Summary of answers provided
3 +1flow separation
Kim Metzger


Discussion entries: 2





  

Answers


7 mins   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +1
flow separation


Explanation:
I have two translations for Strömungsabriss in Langenscheidt Technik in reference to aerodynamics: flow separation and stall/stalling.

In light air, a sailboat will almost always go faster if sail lift can be increased. As long as there is no significant flow separation, drag increases as the square of the lift. As lift continues to increase, drag rises even more rapidly until we reach maximum lift and the sails start to stall. Until near maximum lift, sail drive will increase and the boat speed ditto, in spite of the quickly rising drag and the related heeling force. This is because in light air the heeling force (or moment) is not an issue, at least up to very high values of the side force, when the induced drag of the underwater hull gets excessive.
http://www.wb-sails.fi/news/99_1_AeroShape/Aero.htm


Kim Metzger
Mexico
Local time: 23:13
Native speaker of: Native in EnglishEnglish
PRO pts in category: 123

Peer comments on this answer (and responses from the answerer)
agree  jhp (X): Also: "flow disconnect" at the transom of a boat as a condition for gliding vs. displacement movement.
5 hrs
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