Fuelly Forums - Takin' the Vortekz plunge

Fuelly Forums (https://www.fuelly.com/forums/)

- Aerodynamics (https://www.fuelly.com/forums/f14/)

- - Takin' the Vortekz plunge (https://www.fuelly.com/forums/f14/takin-the-vortekz-plunge-7142.html)

zef95 -

Quote:

Originally Posted by zef95 (Post 92740)

https://www.autospeed.com/A_108676/cms/article.html

Here's the section when they tested a MB wagon:

....

The hatch window of the MB is even more slanted than my 9-5, and it doesn't do squat for aero, it seems. There is one term, though, that I'm unfamiliar with; what is meant by "suction peak?"

What I noticed was the big effect the side view mirrors have :

https://us1.webpublications.com.au/st...08676_15lo.jpg
Attachment 1219

That looks like a big justification for a side-view mirror downsize/delete.

CarloSW2

Yes but they also widen the forebody there to a certain extent and possibly allow flow to come in at more of an angle behind. Also have to be careful messing with mirrors in that a smaller mirror with a fully blended root, can in fact cause more drag than a larger mirror out on a bit of a neck. That was something that turned up in the '08 Caravan redesign, think it's mentioned on the allpar site.

RoadWarrior -

Quote:

Originally Posted by RoadWarrior (Post 92744)

Thanks. I am in the middle of downsizing, and I will be using this :

Blackburn Multi Mirror
https://www.rei.com/OM/style/736837?c...1-000423c27407
Attachment 1220

This might have the "root" problem you are talking about. What is good is that it should be easy to tuff-test. I will keep my passenger side mirror stock and compare the two. If it fails, then I can swap it out with other (flush half-conical?!?!?!) mirrors and test accordingly.

CarloSW2