Reynold's Number Issues Part 3 - Re Plots -KW MkII Development
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- čas přidán 14. 07. 2024
- en.wikipedia.org/wiki/Reynold...
www.grc.nasa.gov/www/k-12/air...
This channel presents key activities related to my development of a new, 15m span, ultralight sailplane. - Věda a technologie
I've been interested in designing and building my own hang glider for some time and have done nothing like this before. Being new to this, it would never have occurred to me to watch out for aerodynamic control effectiveness problems when the local Reynolds Number is around 400,000. Much less would I have thought that - until you came along - that there has never even been any research into this problem, posed by local Reynolds Numbers around 400,000. Anybody blundering into control effectiveness problems - without being aware of what you've found - would likely have found themselves in trouble and not be able to solve the problem. Thank you for drawing everyone's attention to this - valuable work, on your part!
Thanks, I'm glad to hear how you have found so much value in the work that I do. I look forward to seeing you as a new member on my Patreon site. Given all the value you have received, I'm sure your pledge will be most generous. Pledge at: www.patreon.com/klingbergwing
@@KlingbergWingMkII Not right now - simply because I can't see my way clear to getting any project of my own started, for financial reasons among others. If my financial situation in particular improves sufficiently, then I'll have no difficulty joining your Patreon site. Meanwhile, best wishes!
What about "springloaded" turbulators, that retract automatically at high speed?
Always an option and I speak to them in an upcoming video. Spoiler Alert! - VGs only added about 2 degrees of available elevon travel - not enough to solve the problem. You all will be surprised to see the final solution so stay tuned!
So, a more Reynolds-number-friendly airfoil section at the tip?
Yes and no. Future video will explain.
How about retractable VGs? 🙃 yeah I’m a lot of help lol
Yep, that has been discussed at length, but the impact to the D-tube would be extensive and would need a series of load rings. However, there is another potential solution, which I will post in a week or so after the next round of tests tomorrow. Stay tuned!