Search found 3 matches

by Hein
Fri May 22, 2020 3:57 am
Forum: AeroPod
Topic: CdA changes between headwind and tailwind - to be continued
Replies: 5
Views: 7000

Re: CdA changes between headwind and tailwind - to be continued

I did not write about all the details in my simulation, because there are lots of details and I cannot explain all of them in a short post. The pic was to show my simulation hits the recorded speed data pretty well. However, basically my simulation goes like this: I assume a body with a constant sys...
by Hein
Thu May 21, 2020 12:02 pm
Forum: AeroPod
Topic: CdA changes between headwind and tailwind - to be continued
Replies: 5
Views: 7000

CdA changes between headwind and tailwind - to be continued

I do my own CdA calculations based on different data-sources. For wind-speed I use AeroPod data, for ground-speed I use my garmin speed-sensor, for the altitude I use a high-precision laser-scan with an accuracy of 2-3 cm, for power, I use my DFPM, etc... I combine all those different data-sources a...
by Hein
Mon Jan 07, 2019 4:17 am
Forum: AeroPod
Topic: CdA changes between headwind and tailwind - to be expected?
Replies: 34
Views: 39638

Re: CdA changes between headwind and tailwind - to be expected?

If Crr can only explain a small part of the effect, what about another slightly offset constant? If the stored system weight is to low, CdA should rise uphill and while accelerating. While coasting and going downhill CdA should go downwards. As far as I understand Aeropod, accelerating and decelerat...