Hello everyone! I am a high school student working on a science fair project about dual winglet designs for aircraft.
I have run a simulation for the winglet I designed. However, I am not sure if the results are accurate because I don’t really have any reference material to compare them to. These are the conditions I am trying to simulate:
- angle of attack of 15 degrees
- speed of 15 m/s
- chord length of 0.1m
- kinematic viscosity of 1.426 x 10^-5 m^2/s
- density of 1.246 kg/m^3
Could someone kindly help verify that I ran my simulation correctly? I am not sure about what the lift and drag coeffcients should look like, so it would be very helpful if someone could verify that my numbers are realistic.
Some other questions I have are:
- In initial conditions, should the gauge pressure be set to 0 or 101.325 kPa? The simulation I ran had it set to 0 by default, but I am not sure about how that impacts the results.
- What is the significance of the initial velocity condition? In run 1, it was set to 0 m/s, and in run 2, I set it to the same values as the velocity inlet condition (15 m/s at an angle of attack of 15 degrees). Both runs resulted in identical lift and drag coefficients, so I am not sure what the purpose of the initial velocity condition is.
- In force plots, are lift and drag just shown as pressure forces in their respective directions?
- Is there a way to visualize the vortices at the wingtips? The particle trace feature only seems to show particle motion in two-dimensions, so it doesn’t display the vortices I am looking for.
I would greatly appreciate any help or advice. Thanks in advance!