CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Main CFD Forum (http://www.cfd-online.com/Forums/main/)
-   -   Apply Rotation Speed of Rotating Region (http://www.cfd-online.com/Forums/main/92590-apply-rotation-speed-rotating-region.html)

Joke September 19, 2011 09:48

Apply Rotation Speed of Rotating Region
 
Hi,
I'm designing propeller and I want to know how much thrust its generating compare to my hand calculation (Blade element theory).
I modeled solid propeller and covered it with rotating region. If my propeller should turn in clockwise direction in the real wolrd such 1400rpm, so when I apply rotational speed of rotating region, that speed direction should be couter-clockwise direction which be -1400rpm ---> Am I right?.

The result that I got when I applied condition as above is the reverse thrust (such as -500N) I wonder why this reverse thurst happen ???

Thank in advance
Joke


All times are GMT -4. The time now is 00:57.