MECH3780 - Computational Fluid Dynamics - Aerodynamic Design - Reynolds Number - Engineering Report Writing Assessment Answer

MECH3780: Engineering Report Writing Assessment Answer

Assessment Task:

Task
You are tasked with using ANSYS CFX to undertake the aerodynamic design of a device (pick one: a small wind turbine, a remote-controlled sailplane, a remote-controlled an aeroplane or some other small-scale aerodynamic device that you are interested in). Like any good CFD practitioner, you want to validate your simulation method and model before you undertake the full aerodynamic design to ensure your method will approximate reality. To this end you will research and select 2 potentially suitable aerofoils from the attached document for use in your device. You will model the flow around the aerofoils and compare your results with published experimental data.

You are tasked with using ANSYS CFX to undertake the aerodynamic design of a device (pick one: a small wind turbine, a remote-controlled sailplane, a remote-controlled an aeroplane or some other small-scale aerodynamic device that you are interested in). Like any good CFD practitioner, you want to validate your simulation method and model before you undertake the full aerodynamic design to ensure your method will approximate reality. To this end you will research and select 2 potentially suitable aerofoils from the attached document for use in your device. You will model the flow around the aerofoils and compare your results with published experimental data.

Report
You need to hand in a hardcopy report of the work you have undertaken. Your report must include the following:

 An abstract (no more than half a page).
 A table of contents.
 An introduction (no more than 2
 pages). State your reasoning for selecting the 2 aerofoils you have chosen.
 Methodology (no more than 5 pages) explaining the process you have used to undertake the simulations. Include Reynolds number calculations for your device.

 Results/discussion (no more than 10 pages). Your results must include:
o A comparison between your calculated results and the published experimental lift and drag data for all experimentally tested angles of attack. Include Cl vs Cd polar plots, and Cl vs α plots.

o A discussion of experimental vs predicted stall angles for the aerofoils.

o A comparison of steady-state and transient results.

o A discussion of discrepancies and potential sources of error.

o Figures showing the domain sizing.

o Figures and discussion of the mesh independence studies.

o A discussion of which turbulence model provided the most accurate results, and which model you would use for the further aerodynamic design of your device and why.

o State which aerofoil you would utilize for your device and why.

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