Just found this forum, I love it!

Hi mate, how did you import 3D points from matlab? can you please give me some information on the design on solid works please. I want to design 2 bladed twisted turbine. Really appreciate any help. Thanks a lot

Best regards

Hey mate thanks a lot. But the thing is I wont be manufacturing the blade only simulation. My main problem is to design it in Solid works, do you kno how to do this

Best regards

I make program for wind rotor. I think in watter is little different. Of course you can try. It's should work as they rely on same fluid equation. Just the air is compressible and water not. But as I know with dynamic in windrotor a lot of equations predict that fluid (air) is not compresible

The formula sources is already posted here. I was doing hard time to code program for designing blade at root (hub). I think I manage that. There are sample blade just out of my (homemade) CNC mill. It's short. only 30 centimeter radius (1 foot). Just now I make another CNC to be able making large blade.

hey there

I'm doing my final year project on tidal turbine. I've seen your blade. whats the software used? is that a twisted blade? will you be able to give me some guidance on design  please. thanks a lot

best regards

This is more of a question than a reply.  I'm trying to "recycle" a couple bridge rectifiers, but I'm having trouble finding them.  I'm stuck in Afghanistan for several more months, so resources are limited. Any thoughts?  Thanks!

Hi Ness,

Ive looked at the contra-rotating conecpt myself and found it to be no better than a standar horizontal axis turbine. Although you can achieve about 4% extra aerodynamic power, this is lost again through the extra gears needed in the torque transmission system (you typically lose 1-2% of your transmitted power at each gear interface).

I made custom blades for solidworks a few years ago by plotting 3d points in Matlab and then importing the 3D point cloud to solidworks. The chord sections where thentransformed into curves and then I filled in between the curves with the " swept surface " tool. The advantage of this method was that to make large changes to the blade model I only had to change the value of design input variables in Matlab.

If it's still useful to you I'll dig up that old code and post it here.

Hi guys,
I am working on wind turbine project for final year at university and my plan is to make a contra-rotating wind turbine. I have some of the queries and will appreciate any help

1) How do I make the 3d model of the wind turbine on solidworks.

2) I am planning to use just one generator such that I will connect the rotor shaft of the main rotor to my rotor of the generator and the shaft of auxilary rotor to my stator. Do you think this is feasible technically?

3) What is the material best suited for the blades?

Any help would be greatly appreciated

Thanks

Ness

My turbine design: http://img709.imageshack.us/img709/4439/scannedimagea.jpg

My turbine puts out 38vdc after 3 phase diode block at 380 rpm and a short circuit current of 38amps... it did not seem to be that much torque shorted out once at speed.

I have changed alot since that post... I have a xantrex c40 charge controller (can't seem to figure out how it is suppose to work when the turbine is hooked to the batteries all the time even with diversion load is activated.... seem stupid to me)

24v Xantrex Prosine 1800 for my inverter

I'm planning on going to a 24v system because this motor is so good.

I have blade brackets being made right now that should let me put my blades on the motor with no problems. http://img69.imageshack.us/img69/4161/bladebracket.png is the link for my bracket 6 in all will be made. and here is the motor http://www.goldenmotor.com/hubmotors/hubmotor-imgs/f-e.gif that they will mount to

Thanks for your time.