Hi everyone
James from New Zealand here, I am part of the Backshed.com forum which is based in NZ/AU over this way, but I thought I would come on here and seek some support from you fine people.
I have picked up a large diameter PCV mains stormwater pipe, which I am planning to use to make some PVC blades for my windmill.
This is just a starting point.
I am wanting a 3m diameter blade setup, so each blade I guess would be about 1.35m in length, once you consider the central hub.
I am aiming for a TSR of about 7.5, and I am just trying to work out what the best shape is and width as you go from base to tip, would be.
I have seen the Warlock calculators, but they are more an aerofoil than a PVC pipe, and when I put in my specs into that, the base came out at almost 500mm wide, which doesnt seem right.
I downloaded the old version so it gave me the measurements.
What I am thinking is 1.35m long, tip end being about 60mm wide, and the widest part about 160mm wide, which then tapers back to the base, to mount onto the central plate.
After any and all help, would love some guidance on this. I am not trying to make 'the best', but aiming for ballpark decency, if I can achieve a TSR of about 7.5 that would be magic.
I have put the pipe into Solidworks, and then have mocked up a sketch for the approximate shape, which I can then cut out and make a printout for to trace around etc.
Measurements in mm obviously (sorry)
Would love to hear some input, thanks in Advanced.