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Engineering
Posted 2014年10月1日 GMT-4 13:48 1 Reply
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Can someone help me understand how to solve dimensionless equations?
Ex. Wind energy uses large fans to extract energy form the wind and turn it into electric power. In the expression below (P) is the power, η is the efficiency,ρ is the density of the air, A is the area swept out by the fan blades, v is the velocity of the wind.
P=η ρA^2v^2
P=η squareroot of ρAv^3
Ex. Wind energy uses large fans to extract energy form the wind and turn it into electric power. In the expression below (P) is the power, η is the efficiency,ρ is the density of the air, A is the area swept out by the fan blades, v is the velocity of the wind.
P=η ρA^2v^2
P=η squareroot of ρAv^3
1 Reply Last Post 2014年10月1日 GMT-4 13:49
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Posted:
10 years ago
Are these equations valid or invalid?