Recent content by keith0101

Hi, For 2nd slide I mean the equation of avalible power in wind, which is: P=1/2QU^2_infinite (Q: mass flow rate, U_infinite: velocity of free-streaming wind) And Q is defined as: p x U_infinite x A_d. (p: density of air, A_d: Area of disc) I cannot understand the reason of taking the area...

For the avaliable power to be harvested in free-streaming wind: P=1/2QU^2_infinite (Q: mass flow rate, U_infinite: velocity of free-streaming wind) And Q is defined as: p x U_infinite x A_d. (p: density of air, A_d: Area of disc) I cannot understand the reason of taking the area of disc, A_d...