Lab 3 - Airflow Through Duct

Lab 3 - Airflow Through Duct - 35 hz = 45 Hz = 2100 RPM...

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35 hz = 2100 RPM 32 mm 43 mm 45 Hz = 2700 RPM 84 mm 133 mm C_d = 0.98 Contraction ratio = 0.57 d_pipe = 0.08 m d_orifice = 0.05 m so, = Manometer Height Measured by Pitot Tube (mm) Dist from Position 1 Position 2 Position 3 Pipe Wall (mm) 2100 rpm 2700 rpm 2100 rpm 2700 rpm 2100 rpm 2700 rpm 0 54 80 52 78 48 74 5 52 79 52 76 46 68 10 49 74 48 71 45 68 15 48 70 46 67 45 67 20 46 68 43 66 44 67 25 45 66 43 66 44 67 30 44 65 43 66 44 66 35 44 65 43 65 43 66 40 44 65 43 65 43 66 Flow Rate, Q (m^3 / s) 2100 RPM 2700 RPM Flow Velocity (m/s) Dist from Position 1 Position 2 Position 3 Pipe Wall (mm) 2100 rpm 2700 rpm 2100 rpm 2700 rpm 2100 rpm 2700 rpm 40 16.16 23.32 15.47 22.85 13.99 21.88 35 15.47 23.09 15.47 22.37 13.19 20.33 30 14.38 21.88 13.99 21.12 12.77 20.33 25 13.99 20.86 13.19 20.06 12.77 20.06 20 13.19 20.33 11.89 19.79 12.34 20.06 15 12.77 19.79 11.89 19.79 12.34 20.06 10 12.34 19.51 11.89 19.79 12.34 19.79 5 12.34 19.51 11.89 19.51 11.89 19.79 0 12.34 19.51 11.89 19.51 11.89 19.79 Volume Flow Rate, Q (m^3/s)
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Lab 3 - Airflow Through Duct - 35 hz = 45 Hz = 2100 RPM...

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