lensart,
Have a look at the University of Sydney Aeronautical engineering site. They have some good information about blade element theory. Which I think is probably accurate enough for your calculations. There is also a couple of simple programs that use it there. the link is...
The problem with a large swiveling aerofoil is mainly a structural one as to mount it, like a canterlevered beam and make it swivel with out to much friction is difficult. A fixed aerofoil with a flap/aileron type control surface has potential. Another consideration is the effect of a cross...
The above reply's are much enlightening. My thinking was more in the way of providing fuel for transportation. In particular aircraft as they require a high power to wieght ratio. I was considering it as a way to store energy (chemically) and I thought that making a hyrocarbon could be a good...
This helicopter is going to be small too. Single seat. To provide yaw control there will be a nozzle to direct air in the required direction. What I was wondering is if it would be more efficient to direct the airflow at right angle to the tail boom at the end or to use the airflow, exiting...
As I am an aeronautical engineer I don't know much about chemistry but I wonder if it is possible to synthetically make a hydrocarbon fuel using electricity. i.e split water and carbon dioxide and combine the hydrogen and carbon. Just want to settle a idea that I have wondered about for a long...
I am trying to estimate the losses in a short duct(theory stage at the moment) from which the air used to generate thrust. There will be two 90 degree corners one whith vanes. So far I have used the pipe flow method with the moody diagram and the loss coefficients for bends and change in...
I am involved designing a helicopter of the notar type and I would like to know more about the effectiveness of using the Coanda effect to counteract rotor torque. I have looked at how Mcdonald Douglas use the Coanda effect and it seems to be rather complex component wise. Would the Coanda...