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6.77 A windmill is operating in a 10 m/s wind that has a den- sity of 1.2 kg/m'. The diameter of the windmill is 4 m. The constant-pressure (atmospheric) streamline has a diameter of 3 m upstream of the windmill and 4.5 m downstream. Assume that the velocity distributions are uniform and the air is incom- pressible. Determine the thrust on the windmill. p= Patm 3m 10 m/s 4.5 m PROBLEM 6.77

6.77 A windmill is operating in a 10 m/s wind that has a den- sity of 1.2 kg/m'. The diameter of the windmill is 4 m. The constant-pressure (atmospheric) streamline has a diameter of 3 m upstream of the windmill and 4.5 m downstream. Assume that the velocity distributions are uniform and the air is incom- pressible. Determine the thrust on the windmill. p= Patm 3m 10 m/s 4.5 m PROBLEM 6.77

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12:15 56 6.77 A windmill is operating in a 10 m/s wind that has a den- sity of 1.2 kg/m³. The diameter of the windmill is 4 m. The constant-pressure (atmospheric) streamline has a diameter of 3 m upstream of the windmill and 4.5 m downstream. Assume that the velocity distributions are uniform and the air is incom- pressible. Determine the thrust on the windmill. p= Patm 3 m 10 m/s 4 m 4.5 m PROBLEM 6.77
Transcribed Image Text:12:15 56 6.77 A windmill is operating in a 10 m/s wind that has a den- sity of 1.2 kg/m³. The diameter of the windmill is 4 m. The constant-pressure (atmospheric) streamline has a diameter of 3 m upstream of the windmill and 4.5 m downstream. Assume that the velocity distributions are uniform and the air is incom- pressible. Determine the thrust on the windmill. p= Patm 3 m 10 m/s 4 m 4.5 m PROBLEM 6.77
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