The document summarizes a student project aimed at studying laminar flow control. It describes setting up tests to measure wind tunnel turbulence levels using spheres and hot wire probes. Sphere tests indicated a turbulence intensity of 0.9%, while hot wire tests gave lower and inconsistent readings. Plans were made to test flat and wavy plates but the flat plate could not be manufactured due to budget and facility limitations. While initial goals were to study laminar flow transition on different plate designs, the project focused on characterizing the wind tunnel turbulence levels which showed discrepancies between the sphere and hot wire methods.

1. MENG AEROSPACE ENGINEERING LAMINAR FLOW CONTROL Supervisor: Dr Jian Wang Mandeep Phull Cecil Ng John Gane 03/06/2010

11. Sphere Test EGM064: Group Project /21 BRACKET and TEST SET UP

12. Sphere Test - Results EGM064: Group Project /21 Results from Wind Tunnel test

17. Hot Wire Test - Results EGM064: Group Project /21 With the hole not covered With the hole covered VELOCITY (m/s) TURBULENCE INTENSITY (%) 10 0.014 15 0.014 20 0.015 25 0.019 30 0.015 VELOCITY (m/s) TURBULENCE INTENSITY (%) 10 0.013 15 0.017 20 0.017 25 0.020 30 0.017

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