**WIND TURBINE BLOG! Shelby!(:
How does an airplane and a wind turbine use air pressure to rotate? It's called the Bernoulli's Principle.This is when the increase in the speed of a fluid produces a decrease in pressure and a decrease in the speed produces an increase in pressure.
Why was it necessary to twist the rotor blade at an angle?
Because of the angle, it's easier to catch the wind and spin. If it was just a straight on, it would barely spin at all, and then we wouldn't create any energy!
Explain how rotors on a windmill and sails on a sailboat illustrate the same principle.
We basically made a model of a windmill with our pin wheels. The rotors on those are very similar, although its all about the structure. The better the structure, the more the rotors will spin and energy is going to be produced. This also applies to the airplanes and windmills.
We basically made a model of a windmill with our pin wheels. The rotors on those are very similar, although its all about the structure. The better the structure, the more the rotors will spin and energy is going to be produced. This also applies to the airplanes and windmills.
Which rotor had the most power and why?
Kristin and Maddie's. Theirs was cleverly made. They went outside the box and built theirs out of plastic rulers welded together. Their blades were long and thin, yet still light in weight because it was made from plastic. Everybody else was pretty much sticking to the "pinwheel" design as well. Our planes were short and fat. Where as Kristin and Maddie made one that was similar to our modern day wind turbines. It was quite successful, and therefore, produced the most energy.
Kristin and Maddie's. Theirs was cleverly made. They went outside the box and built theirs out of plastic rulers welded together. Their blades were long and thin, yet still light in weight because it was made from plastic. Everybody else was pretty much sticking to the "pinwheel" design as well. Our planes were short and fat. Where as Kristin and Maddie made one that was similar to our modern day wind turbines. It was quite successful, and therefore, produced the most energy.
What was different about the windmill w/ the maximum output?
(Stated above)
(Stated above)
What are some of the limitations of the model?
There aren't very many not-so-good things about the model since it was cheap and still created a lot of power. I'd say the material couldn't withstand being an actual full-sized wind turbine (obviously) because it would crack and break off easily. But as a Science project, they get an A in my opinion! (: More people should have followed their 'long-and-skinny-slightly-tilted-not-a-pinwheel' design.
There aren't very many not-so-good things about the model since it was cheap and still created a lot of power. I'd say the material couldn't withstand being an actual full-sized wind turbine (obviously) because it would crack and break off easily. But as a Science project, they get an A in my opinion! (: More people should have followed their 'long-and-skinny-slightly-tilted-not-a-pinwheel' design.
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