at 9:13 minsfor the coloured force vectorsare the downwards red vectors from the wing exerting a downwards force on the Air so then Air pushes back with an equal and opsosite force and green area is just a low pressure region marked on top of the wing
@TennisGvy12 жыл бұрын
I appreciate you putting this up, I think my lab instructors will be impressed if I use this on some of my reports :)
@Danimal-3D11 жыл бұрын
Haha, no problem. If you have a request on another video you'd like me to do, go ahead and leave another comment and I'll see what I can do. ** No promises :)
@brianarmstrong8968 жыл бұрын
Most informative. Thank you for sharing this.
@Danimal-3D8 жыл бұрын
+Brian Armstrong Glad it's helpful!
@waluyoadisiswanto9982 Жыл бұрын
For the speed using Reynold (1:50). I am just wondering the equation used, since I want to convert from air speed.
@Danimal-3D12 жыл бұрын
you're very welcome! I know it's not perfect but it'll get you started
@Hohohah9 жыл бұрын
I used a symmetric airfoil, but when I follow your steps, it doesn't show anything when the solver finishes...
@Danimal-3D11 жыл бұрын
When you define your Polar, you need to set your Moment Ref. Location. Typically you can take this at the 1/4 chord of the wing.
@Danimal-3D11 жыл бұрын
So if I understand your question, you're wanting some dihedral/polyhedral in order to give the effect that your wing is round? I don't believe Xflr will make a curved wing, but you might be able to get close by adding some dihedral/polyhedral at small increments
@TennisGvy12 жыл бұрын
@DHubert777 One thing I noticed is that multi-threaded analysis only seems to work if I disable two of my six cores, but it's kind of cool watching the program draw the lines.
@wlcang022612 жыл бұрын
Thanks very much! I just begin to use it, very helpful.
@xinchen178110 жыл бұрын
fantastic video thank alot
@SunilSundar4 жыл бұрын
When I do a batch analysis, all the lines in the graph are the same color. How to change this?
@juliamaia81774 жыл бұрын
Hey, with me the same thing is happening. Did you figure out how to solve this problem?
@anupamkrishnan51664 жыл бұрын
@@juliamaia8177 I found out a way to do this. Just below the options bar you will have the Airfoil name and a drop down menu like T1_Re0.500.......This drop down list is your current Reynolds number selection. Select the desired Re Number and then go to Direct Foil Analysis tab on the right side of your window. You will see color option at the bottom. Double click and select the colour you want to be displayed on the graph. Do this for different Reynolds Number.
@juliamaia81774 жыл бұрын
@@anupamkrishnan5166 thank you so much. I'll try it. ;)
@Ector52112 жыл бұрын
Thank you DHubert777. Great help, great job.
@soccernicholas63 жыл бұрын
When I do an inviscid flow nothing graphs but when I do a viscous flow it does. Nothing changed except whether it was inviscid or not. How do I graph the inviscid flow?
@MrSpecialness11 жыл бұрын
Hey Daniel, Does XFLR5 measure the pitching moment about the 1/4 chord? because the results should be '0' for symmetric aerofoils until stall occurs? but the results are showing negative pitching moments for symmetric aerofoils. Very confused mate.
@karalgary9 жыл бұрын
I have the XFLR5 V6 edition and I can not find the ''define a new wing '' tool..please help!
@marcocastrovelasquez90909 жыл бұрын
Nikolas Karalis me too!! :/
@karalgary9 жыл бұрын
***** did you find any solution??
@jayanthnmurthy9 жыл бұрын
+Nikolas Karalis Exactly?!! Figured it out by any chance?
@fraktasticful8 жыл бұрын
+Nikolas Karalis For anyone still wondering, go to define plane, go to the wing section and hit define
@jayanthnmurthy8 жыл бұрын
fraktasticful Thanks a lot!
@ahmhmd199011 жыл бұрын
I love it Very nice and great for beginners like I :D Make more of these nice videos :) It really helped me alot as I am too lazy to read the documentation hahaha
@Danimal-3D12 жыл бұрын
You're welcome! Good luck!
@ahmadasyraf51789 жыл бұрын
hye, sorry, i just wondering what version of xflr5 you use? Because mine is v4.16 which don't have the same user interface with yours. If there any link available to download that have the same version as yours from the internet?
@sachashower9 жыл бұрын
Hi there, when I click on the airfoil database wing profile plots, it does not download it, it opens the points on the webpage. I am running xflr5 on a mac, I tried to copy the points into some kind of notepad but xflr5 won't open it. does anybody know how to get around this problem? Thanks, Sacha.
@mauemmel9 жыл бұрын
right click on it and click on save link as.
@valeriooddone9 жыл бұрын
also check that they are in the right order, i.e. coordinates around the wing, starting from the trailing edge (1 , 0) over the upper side (1->0, >0), to the leading edge (0 , 0) over the lower side (0->1,
@Karlagp919 жыл бұрын
+sachashower Im also having that problem, i downloaded the link, but xflr5 won't open it, did you manage to do it? Thanks
@alejandropajuelogarcia20577 жыл бұрын
Just copy it in a notepad and change extension (.txt) to (.dat)
@qasim19016 жыл бұрын
Great video!
@Danimal-3D12 жыл бұрын
@TennisGvy No problem! I'm also going to be posting a tutorial on TORNADO using Matlab. These programs are definitely helpful, especially for getting some "Kudos" from your TA's :)
@abhinavaggarwal54887 жыл бұрын
Really helpful thanks!
@robbie2g212 жыл бұрын
Hello, have followed your tutorial and it seems to work great on my chosen aerofoil and dimensions. However I am pretty new at this and was wondering, what properties does one use to determine the stability of the aerofoil. One source I researched pointed out the glide ratio vs speed and another mentioned Cm vs alpha....please help am confused!!
@chrisklinger94511 жыл бұрын
Great job! Thanks a million. Have you read up on Harry Riblett's airfoils?
@MrSpecialness11 жыл бұрын
@Daniel Hubert Hiya mate, great stuff! Could you do a tutorial on fying wings with winglets? I would be truly grateful.
@Danimal-3D11 жыл бұрын
I've tried to model the winglets as a double vertical fin and compared it to a wing without the winglets... unfortunately the wing including winglets had horrible data that was unusable
@DustinNick10 жыл бұрын
great video,thanks a lot. I wonder would you like to teach us to do a xfoil inverse design.
@Danimal-3D9 жыл бұрын
Open up the .dat file of the airfoil you want, and put a negative (-) sign in front of the "Y" values. This will mirror all the points and give you an inverted airfoil. I did this for one of my projects, and it worked great.
@kunalgarg76335 жыл бұрын
Good video..! Thanks....!
@poelaertpieterjan11 жыл бұрын
Yep I'm using it now, but seems to give me very very very thin blades for the prop i want.
@firdausshakirin1238 жыл бұрын
Hi I have problem when analyzing my wing design. It says that error encountered was negative value for alpha. And I couldnt get the analysis done. How? Please help. Thank you.
@stephenhornish20489 жыл бұрын
I have the bottom and the top of the foil but there on two different files how do i merge the files into one so that it make a complete airfoil instead of two?
@shanxW1610 жыл бұрын
Is it possible to extrapolate the attack angle from -180 to +180 degrees?
@MrSpecialness11 жыл бұрын
Wouldn't it be the same as modelling a vertical fin? (just a basic winglet without fancy sweep, etc) ?
@muhamadirawan55734 жыл бұрын
How to make "different graphs" for example, different graphs of NACA 4412. Thanks
@sliu201011 жыл бұрын
Without viscous enabled, the results are not trustful for low Reynolds number flows.
@ProBoy199317 жыл бұрын
you saved my live
@Danimal-3D7 жыл бұрын
Glad it could help!
@soyo11 жыл бұрын
take a look on Qblade, but its used to develop wind turbine, the theory its the same..
@248geo10 жыл бұрын
Hi, good video. When trying to use SC aerofoils a CpCalc error message occurs stating "CpCalc: local speed too large Compressibility corrections invalid" Any thoughts on how to proceed?
@alphaadhito7 жыл бұрын
anyone knows why when i analyze on batch analyze and the program stoped working?
@alicankaya85557 жыл бұрын
İf you don't foil analysis firstly , you can't see foil type while you are designing plane. It was important.
@jogomez1988a8 жыл бұрын
Which air foil do you recomend?
@avaneeshkanshi17034 жыл бұрын
Can you upload the tutorial fora recent version of XFLR ,as there are many changes
@consistentivan685710 жыл бұрын
I don't manage to get all those 4 other graph showing the results of Cl vs Alpha and Cd vs Alpha! how did you get those?
@valeriooddone9 жыл бұрын
in direct foil design, polars, polar graphs, show all
@shanxW1610 жыл бұрын
Could you please make a video on how to import DAT files on QBlade?! I have a deadline in 4 days PLEASE PLEASE PLEASE URGENT
@felipec.k.22348 жыл бұрын
Hey Daniel Is there any way I could import a Solidworks plane body to XFLR5?
@maker724608 жыл бұрын
+Felipe C. K. Did u get the answer?
@felipec.k.22348 жыл бұрын
I didn't =/
@maker724608 жыл бұрын
+Felipe C. K. did you use openfoam. I heard it takes stl files
@paritoshmishra46576 жыл бұрын
you sure??
@xino9513 жыл бұрын
4:00 all my curves are in same colour, is there any way to fix that?
@metultrAs11 жыл бұрын
which version of xflr5 do you use?
@valerybotsko2219 жыл бұрын
I have the following problem. When I have the wing design and click "Analyze" it says the following: "Plane Name_Elev:Could not find wing's foil. Aborting calculation" What does this mean? I designed my own airfoil beforehand. Can someone help, please?
@blue123456ization9 жыл бұрын
+Valery Botsko You did not specify which airfoil the wing should use.Try to check if you have mentioned the airfoil in the interface.
@chrisklinger94511 жыл бұрын
Try Javaprop from Dr. Hepperle. Excellent. Even does ducted fan, etc.
@lironschmalz8 жыл бұрын
the 6.13 win32 version doesn't want to run for some reason. 6.12 is fine.
@hansconser34148 жыл бұрын
I don't get how to edit the profile of an airfoil graphically
@mustafakara77395 жыл бұрын
How can we analyze it with mach number greater than 1.2?
@jaitrakhanna45625 жыл бұрын
Is it possible to analyze a tubercle airfoil on this software ?
@Danimal-3D11 жыл бұрын
Winglets... I honestly have no idea how to model that in XFLR... Sorry about that
@patrickpandelaers42007 жыл бұрын
I'm running XFLR 6.33 on windows7. When I open new plane design, I don't get the 3d view, i get a black canvas area with some "x" dots... don't know how to fix it. I'm all exited, would like to use it. Thanks!
@Danimal-3D7 жыл бұрын
Hmm... not sure what you're seeing... 1. File --> Wing and Plane Design (Ctrl +6) 2. Plane --> Define New Plane (F3) --> Press 'OK' You should see a 3D plane now.
@dmitrijkatkov65253 жыл бұрын
Alpha = 0.000Invalid Analysis Settings CpCalc: local speed too large Compressibility corrections invalid ...some points are unconverged HOW FIX THIS SHIT?
@jawalker4911 жыл бұрын
Hi daniel, i was wandering do you know how to model wing ends to get a rounded shape?
@kalas23207 жыл бұрын
Great work form the developer. Is it possible to model an aircraft using an input file (Like AVL) and run it via DOS or MATLAB and then send the results to another output file?
@Danimal-3D7 жыл бұрын
If you want to run via MATLAB, I would definitely encourage you to use "Tornado". Using Tornado and MATLAB you can customize your scripts and develop optimization code tornado.redhammer.se/index.php/download
@kalas23207 жыл бұрын
Thanks.
@_gabi914011 жыл бұрын
In 3D panel analysis, they show me "Errors encountered" window at 99% completed. How can I fix it? I need a help ASAP
@GANG5TAN1SH10 жыл бұрын
Hi Daniel, would you happen to know how to use XFLR5 to show if an aerofoil is able to do inverted flight? thanks a lot
@Danimal-3D9 жыл бұрын
Open up the .dat file of the airfoil you want, and put a negative (-) sign in front of the "Y" values. This will mirror all the points and give you an inverted airfoil. I did this for one of my projects, and it worked great.
@ItsALLgoingDownHill12 жыл бұрын
How does on put wing-tip rudders on the wing?
@poelaertpieterjan11 жыл бұрын
Can you design propellers with this program? I looked at xfoil, but seems to be difficult
@kuldeepbista4128 жыл бұрын
xflr5 crashes whenever I try to open files. What should I do?
@fabricioaraujo99169 жыл бұрын
You know how to make a elipitica wing ?
@Danimal-3D11 жыл бұрын
Wow... I have no idea. I don't think it would be very accurate if you could though.
@ilsejauregui92168 жыл бұрын
I can't download the document from the airfoil database page, a new page just open. Why is this for?
@Danimal-3D8 жыл бұрын
+Ilse Jauregui Perform a "Right Click" on the airfoil file from the website, and then select "Save Link As" from the drop down menu.
@jft0000365 жыл бұрын
Good!!
@ngwakoloscar94083 жыл бұрын
When i click it doesn't download, instead it opens some data. Why is that?
@ngwakoloscar94083 жыл бұрын
When i click on the airfoil from the website.
@andreasrauch8011 жыл бұрын
try xrotor, also by drela
@Danimal-3D11 жыл бұрын
remove completely, or just not show it?
@FerasAbuTaha11 жыл бұрын
Ummmmm...I have an i7 Extreme Edition and the speed that your comp is running those graphs makes my system look like a 386SX w/2mb Ram....WTF?
@MATTY97FLY10 жыл бұрын
Is this an opensource program?
@SanthoshKumar-bm9kh8 жыл бұрын
where to download the XFLR5 and how to install it ?
@teamairavat4 жыл бұрын
can i know the version of this xflr 5
@toiletinspector6 жыл бұрын
What is plane mass?
@soktsitimothy29055 жыл бұрын
the data base site just gave me coordinates for the foils, how did you download it?
@hunterharing5 жыл бұрын
Right click the foil you want, then hit "Save Link As..." You might need to open it in a text file an remove anything that isn't coordinates if you are getting stray lines or points in the graph.
@alfredofredi11306 жыл бұрын
Muy interesante
@jaysonbaughan298011 жыл бұрын
I figured it out
@jaysonbaughan298011 жыл бұрын
Hey how do I remove this Spline Foil?
@avaneeshkanshi17034 жыл бұрын
Right click on it and there will be a delete option :)
@shrikant9447 жыл бұрын
how to download and install XFLR5 Software
@Danimal-3D7 жыл бұрын
www.xflr5.com/xflr5.htm
@multitechwalker10 жыл бұрын
красота
@Danimal-3D11 жыл бұрын
I'm unaware of these errors you're encountering. Sorry.