Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Request/question: turbulent flow #122

Open
NathanKell opened this issue Jul 18, 2021 · 0 comments
Open

Request/question: turbulent flow #122

NathanKell opened this issue Jul 18, 2021 · 0 comments

Comments

@NathanKell
Copy link

Right now FAR (as I understand it, hence the question part) models everything as super smooth, keeping air in laminar flow. Would it be possible to tag certain parts (or better yet, certain parts when in certain animation states ) as having rough surfaces, thus triggering turbulent flow?

I ask because of a longstanding issue where FAR seriously underestimates the drag of extended retractable gear; they are draggy precisely because there are lots of little nooks and crannies that the air gets stuck in, for lack of a better description. The fixed gear, with their streamlined spats, should be considerably less draggy than extended retracts.

This is also true for, say, plopping lots of itty bitty experiments on the side of a probe: FAR severely underestimates how draggy this is, making fairings often (aerodynamically, if not thermally) a worse choice than they should be.

Would there be some way to model this, given how FAR voxelizes parts? Since it operates purely based on cross-sectional area I'm not immediately sure how...

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

1 participant