Propeller NACA Airfoil - Fusion 360 Modeling

[@zodyking4737]

The only method I can find on youtube that makes sense and allows for precise engineering. I take your more than a hobbyist.

[@DidiWidyaUtama]

Thanks

[@gumbykevbo]

The operating AOA of the prop is determined by the direction of the vector sum of the forward velocity and the tangential velocity at that blade station. This is only equal to the lead angle (misstated as AOA in the video) if the prop is not moving through the air. Setting the root lead angle to the stall AOA will maximize static thrust and work well on a fan, drone, airboat, or other low speed (in direction of prop shaft) vehicle. But on a fixed-wing airplane, the prop root is normally stalled at standstill, but comes out of stall as the aircraft picks up forward speed. The idea is that the entire length of the blade will be operating at the same AOA when the aircraft is at cruise (or climbing if that is the goal). For 3D flying (hovering) then setting the root at stall AOA is probably the way to go, though, as it is then equivalent to a drone prop operating condition.

[@gumbykevbo]

For a fixed wing aircraft the design procedure in the video will result in the center part of the prop operating at negative AOA at speed, not only canceling some of the forward thrust but possibly even in an inverted stall condition, wasting engine torque on useless drag. For proper operation at speed, the lead angle should, ideally, be at 90 degrees when projected to the center of the hole. In addition, much thicker airfoil sections are normally used at the root which adds strength where it is most needed and also work better at the lower airspeed at the root (due to decreasing tangential velocity.). The lofting technique shown in the video is the perfect way to transition smoothly between different airfoil sections. Due to the minimal disk area, and the fact that lift is proportional to the SQUARE of airspeed (so very little at the root) designers often decide that trying to eek out a percent or two of thrust from the root stations isn’t worth the bother, and opt for minimizing drag instead, or just cover the root area with a big spinner.

[@elhau]

Very, very good reply. I had to review it about 4 times, after I gathered some more knowledge about the propellers through various other sources. Each time I discovered something new when reading the two of your replies Sir. Great stuff, thank you!

[@seanheadrick]

This tutorial was so helpful! Thank you very much. In addition to applying an actual airfoil, I appreciate your brief explanation of how to identify the appropriate angle of attack.

[@DidiWidyaUtama]

Sean Headrick Thankyou

[@wwindsunrain]

Really nice. Love how the prop angle changes with the radius, as it should.

[@DidiWidyaUtama]

Thanks

[@rivlry1975]

Amazing!!! You are one of my favorite persons to watch for tutorials.. Thank you so much for what you do

[@DidiWidyaUtama]

Eric Rosander thankyou

[@rivlry1975]

@@DidiWidyaUtama I have recommended people to your channel for advanced learning,

[@DidiWidyaUtama]

Thanks mate, I appreciate it

[@leeackerson2579]

DiDi, you're a friggin genius, thanks much.

[@DidiWidyaUtama]

You're so welcome!

[@Sven_Hein]

Thank you for reminding me to take a closer look at fusion plugins

[@DidiWidyaUtama]

u're welcome

[@rayztech7384]

thank you from the bottom of our hearts

[@DidiWidyaUtama]

U’re welcome

[@LetsPrintYT]

omg, soo good!!!

[@DidiWidyaUtama]

Thank You

[@technikrosa]

I'm very happy to watch every tutorial from you. It's so interesting repeat that.

[@DidiWidyaUtama]

thanks, please share and spread to other people.

[@nevillecreativitymentor]

Thank you . Very nicely explained ... just the video i was looking for.❤❤❤❤

[@DidiWidyaUtama]

Thanks

[@Zuzzt]

Very very good! Thank´s for all those tips and hints.

[@DidiWidyaUtama]

Benny Andén Thankyou

[@more_harsh]

Thank you so much sir

[@berktanriover5554]

Thank you !! Very nice explenation...

[@DidiWidyaUtama]

You are welcome!

[@crypto88588]

thanks for sharing your knowledge, nice work btw

[@DidiWidyaUtama]

Thanks

[@philiptaylor3262]

Excellent tutorial. Thank you

[@DidiWidyaUtama]

thanks

[@dang3859]

Very nice tutorial, thanks

[@DidiWidyaUtama]

You are welcome!

[@levinschroll5795]

Very nice tutorial! Helped me a lot!

[@DidiWidyaUtama]

Levin Schroll U’welcome

[@charanchakra]

Thanks I was feeling very professional while trying this.

[@DidiWidyaUtama]

thanks

[@avislowe7232]

amazing tutorial i learned alot thanks

[@DidiWidyaUtama]

Glad it helped

[@Scorpio9999channel]

Another good example of use of my add-in. But I suppose that angle of incidence should be calculated differently. It depends from constant pitch in inches and radius.

[@wersy2]

That is correct. A propeller must be designed in such a way that it achieves the same lift on an inner radius at low orbital speed as it does on the outside at high orbital speed. This is achieved on the inside with a high angle of attack (slow flight) and on the outside with a low angle of attack (fast flight).

[@DidiWidyaUtama]

I agree, propeller is a complex part, to design it need a lot of calculations as well as CFD analysis for more accurate results. This video just show best practices to create 3D model of propeller. Thanks

[@emanuelancuta3866]

Very helpfull

[@DidiWidyaUtama]

Glad it helped

[@AbdulSahibi-z2r]

Thank you. It helped me alot. Is there any way to make you a donation, Keep the work up

[@coverdestroyer3572]

ini folding prop bang?

[@Supacoopaofawesomeness]

thank you.

[@DidiWidyaUtama]

U’re welcome

[@prankboysss]

What type of airfoil is this using?? plz reply

[@DidiWidyaUtama]

I was mention the type of airfoil i used in the video, please carefully watch it, thanks

[@mrfishingrov6395]

Awesome video. i with i had watched it before spending two day to figure it out :) Ive been modeling wind turbine blades. I had a usefull document the gave an equation for airfoil angle Beta=atan(( 2 * Radious ) / ( 3 * ( r * 3 * TipSpeedRatio ) )) - Alpha where radious is the radious of the rotor, r is the radious of the section in question tipspeedratio is speed of tip/wind speed and alfa is the angle of attack. So the angle of the foil section isnt liner. this equasion accounts for the apparent wind angle- which is a product of rotational velocity and wind speed. Im not sure how that relates to propellers versus turbine blades but would think the angle is just opposite? Did you measure the blade you were copping? I hound that when i calculated for constant pitch ( distance the propeller tip would move given radious and angle tan(angle)=Pitch/Radious) the angle of the sections were a little below the previous equation.

[@DidiWidyaUtama]

Mr Fishing Rov hi your tips can be useful to others viewers, thanks for sharing

[@gertucgt]

it is the icing on the cake for the video. Now Ive got the essential for a great modelling

[@deepikatiwari4473]

Tq so much

[@DidiWidyaUtama]

Deepika Tiwari U’re welcome

[@LuizFernando-xy6fo]

hello, I'm designing a model airplane and I intend to include a "naca duct" in it, would you know how to design a "naca duct" in fusion 360?

[@That.Dude57]

Bagus sekali, Pak, tutorialnya. Lebih wah lagi kalau ada lanjutannya untuk simulasi CFD.

[@DidiWidyaUtama]

Terimakasih, untuk CFD propeller bisa dipertimbangkan. Silakan check simulasi CFD berikut kzbin.info/www/bejne/anvLi6Vsj9KisKs

[@That.Dude57]

@@DidiWidyaUtama Terima Kasih banyak, btw, kalau seumpama saya ingin mencoba menggunakan referensi desain ini untuk mendesain mold, dam mencetaknya menggunakan komposit, apa anda keberatan?

[@DidiWidyaUtama]

@@That.Dude57 silahkan saja gunakan dengan catatan cukup sebutkan alamat channel ini di referensi anda. Jk membutuhkan 3D modelnya bisa download juga di grabcad, gratis. Terimakasih

[@railsgames2951]

It would be very useful if you linked the png-file of the propeller in the description, thanks. :) Apart from that im very thankful for the tutorial.

[@ilgarmammadov1813]

Hello, I have a question about the dimensions of the propeller. I need to design 11.8 inch diameter propeller. So, How can I determine the diameter of the circle in the middle of the propeller?

[@DidiWidyaUtama]

to get the hub diameter please consider the strength of the hub due to the centrifugal force of the blade, motor propeller torque as well as the aerodynamic force acting on the blade. thanks

[@juandediosyanez]

Hi, how can I know the profile that corresponds to a type of propeller? For example, I want to design a drone propeller 9030, 9 "and 3 step, how can I know the type of naca that corresponds to it?

[@DidiWidyaUtama]

we can not straightly know the particular type of propeller correspond to the naca profile, because it's a manufacturer "recepie". but we can still find out using reverse engineering technology to get close to the shape, and test the performance using simulation and experiments, and that's why it called "Inventions".

[@KevinFelstead]

I followed this process exactly but added 15 degrees to the tilt, so instead of horizontal at the tip it is now 15 degrees. More like a fan than a airfoil. I 3D printed the prop upside down so smooth side faces down..Drone flies great. !

[@DidiWidyaUtama]

Great, well done 👍

[@relaxationmusic3483]

how can I get that image Propeller2.jpg ? please somebody tell

[@DidiWidyaUtama]

You can download trough web, there are tons of propeller images to choose from.

[@robotboy3525]

OMG! absolute genius! Would you have the stl file for this ??

[@DidiWidyaUtama]

Yes, if you need it, I can upload it.

[@robotboy3525]

@@DidiWidyaUtama Yes, I would definitely love to have the stl file, please. and also the .f3d file, if you don't mind. trying to do this on my own has bee quite a pain.

[@DidiWidyaUtama]

@@robotboy3525 Here the download link : grabcad.com/library/naca-propeller-1

[@vladislav6779]

мужик, круто!

[@DidiWidyaUtama]

благодарю вас

[@vladislav6779]

@@DidiWidyaUtama Semoga sukses dalam pengembangan saluran :)

[@aqeelalmnsory]

Hello brother, can I get the project so that I can open it on AutoCAD?

[@DidiWidyaUtama]

You can download the file in here : grabcad.com/library/naca-propeller-1

[@aqeelalmnsory]

@@DidiWidyaUtama My brother, I tried to download the annotated one, but unfortunately, I did not succeed

[@DidiWidyaUtama]

@@aqeelalmnsory please try again, it should be fine

[@aqeelalmnsory]

@@DidiWidyaUtama I tried over and over again until I registered all my e-mails and now the registration is not accepted

[@aqeelalmnsory]

@@DidiWidyaUtama Please help me in sending the project, because I very much need it

[@aqeelalmnsory]

Hi brother, can I get the 3d project???

[@DidiWidyaUtama]

yes, please download it from the link in the description, thanks

[@aqeelalmnsory]

@@DidiWidyaUtama My brother Brother, I tried, but unfortunately, it is not possible to download through this link

[@SaytoUpMan]

mas boleh tau cara menentukan sudut tiap airfoil nya bagaimana?? (How to determine the angle of each airfoil?

[@DidiWidyaUtama]

you can divide the delta AoA with the number of sections which you created, so that is the interval of angle in each sections, hope this help, thanks

[@roberthartshorn6519]

I fucking love you.

[@DidiWidyaUtama]

Thanks

[@kangdamai3627]

Boleh tau Spec PC/ Laptopnya kak?

[@DidiWidyaUtama]

It's an old laptop , Dell Precision M4800, i7 2,7Ghz, Nvidia Quadro 2100 graphic card, 16 Gb RAM

[@kangdamai3627]

@@DidiWidyaUtama terimakasih

[@DidiWidyaUtama]

Kang Damai sama-sama

[@thanossetiawan1249]

kak membuat air propeller itu ada atauran tertentu gk dalam pembuatannya?... atau buat sesuka hati terus d uji torsi vs trusnya.. atau bagaimana. kalau untuk marine propeller kan ada b-serien, kaplan series, au series, sk-series.. dan itu berbeda bentuk dan beda ketentuanya.. mohon pecerahan :>

[@thanossetiawan1249]

saya cuma anak jurusan perkapalan mau belajar membuat air propeller untuk hovercraft.. terimakasih

[@DidiWidyaUtama]

ada ketentuannya, sumber teori bisa cari di buku, dalam mendesain, bisa mengikuti acuan dari teori, lalu dilakukan simulasi CFD untuk mengetahui performace dari propeller tsb.

[@thanossetiawan1249]

Iya kak.. untuk teorinya udah saya cari untuk penerapannya susah banget.. supanya cocok antara batas torsi rpm dan thrus yang di hasilkan..

[@thanossetiawan1249]

Untuk softwarenya memakai inventor dan autodesk cfd.. kendalanya sih buat model satu satu terus d running satu satu.. ada cara cepatnya nggk kak?.. wkwk

[@aero_cats]

@@thanossetiawan1249 You can easily use Larrabee method to generate its chord/radius and twist/radius distribution. The method can be done by using excel spreadsheet. For further development, you can try Genetic Algorithm, Swarm Particle, and another optimization process

[@admiraloctavio5860]

Easier to loft with two guide lines than copy paste the same sketch 10 times

[@DidiWidyaUtama]

Yes, I agree. My method also will work if you have any unequal twist angle on the sections throughout the axis

[@didhyphitol9784]

Berbagi ilmu tapi bahasa masih kurang faseh.. Kalo orang indonesia lebih bagus pake bahasa sendiri aja ..biar dapat dukungan.. Maaf yaa..

[@DidiWidyaUtama]

Sudah pernah menggunakan bhs Indo, namun sy memutuskan utk pakai bhs English dengan alasan tersendiri. Jika kurang faseh, bisa nyalakan subtitle nya , terimakasih masukannya