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cfg83 · 07-12-2008, 03:11 AM

EDIT: SUPERCEDED BY POST #65 :
http://ecomodder.com/forum/45192-post65.html

Hello -

I didn't change any of the default numbers except for duration (40 seconds), so maybe this is all wrong. First, I did a stock analysis on my SW2 :

1999 Saturn SW2 Aero-Analysis
...removed to save download time...

After around 6 seconds, a "Virtual Kamm-Back" appears (at least that's what I call it). Then I did an analysis with a Kamm-Back based on MetroMPG's rain-drop example, ending at the bumper :

1999 Saturn SW2 + Kamm-Back Aero-Analysis
...removed to save download time...

Finally, I went back to the first analysis and added the "Virtual Kamm-Back" :

1999 Saturn SW2 + Kamm-Back II Aero-Analysis
...removed to save download time...

I like the Virtual Kamm-Back because it would mean not having to worry about moving the 3rd brakelight and maintaining almost full rear visibility. It also seemed to produce the most stable swirly-wake during the run. A nice compromise.

Question: Could my Virtual Kamm-Back be "tailored to the program"? What I mean is, could I be making a shape that the program likes?

CarloSW2

07-12-2008, 03:11 AM	#24 (permalink)
cfg83 Pokémoderator Join Date: Dec 2007 Location: Southern California Posts: 5,864 1999 Saturn SW2 - '99 Saturn SW2 Wagon Team Saturn 90 day: 40.49 mpg (US) Thanks: 439 Thanked 530 Times in 356 Posts	EDIT: SUPERCEDED BY POST #65 : http://ecomodder.com/forum/45192-post65.html Hello - I didn't change any of the default numbers except for duration (40 seconds), so maybe this is all wrong. First, I did a stock analysis on my SW2 : 1999 Saturn SW2 Aero-Analysis ...removed to save download time... After around 6 seconds, a "Virtual Kamm-Back" appears (at least that's what I call it). Then I did an analysis with a Kamm-Back based on MetroMPG's rain-drop example, ending at the bumper : 1999 Saturn SW2 + Kamm-Back Aero-Analysis ...removed to save download time... Finally, I went back to the first analysis and added the "Virtual Kamm-Back" : 1999 Saturn SW2 + Kamm-Back II Aero-Analysis ...removed to save download time... I like the Virtual Kamm-Back because it would mean not having to worry about moving the 3rd brakelight and maintaining almost full rear visibility. It also seemed to produce the most stable swirly-wake during the run. A nice compromise. Question: Could my Virtual Kamm-Back be "tailored to the program"? What I mean is, could I be making a shape that the program likes? CarloSW2 __________________ *What's your* EPA MPG? Go Here and find out!** American Solar Energy Society Last edited by cfg83; 07-18-2008 at 03:54 AM..