Pressure distribution past an aerofoil

Leonpolou

Leonpolou

@leonpolou-vHzOv4 • Oct 23, 2024
Hi everyone,


I am trying to model the deformation that might have an aerofoil under a given pressure distribution. This pressure distribution is given with CFD.
In order to model these deformations I use Patran (FE), and here comes the issue.

In order to apply the pressure distribution on the upper and lower aerofoil edge, I need to create a shell, which must have a thickness. As a result, the bigger is this thickness and the lower will be the deflection ( which is normal as I am applying pressure). My question is, how can I apply a pressure on the upper and lower edge without creating a shell. In a different way, would it be possible with using a shell to avoid this issue?

Many thanks
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  • Leonpolou

    Leonpolou

    @leonpolou-vHzOv4 • Jun 8, 2011

    Edit:

    Actually, no the pressure shouldn't be lower with increasing the pressure. My apologize for this mistake. I am then trying to give a pressure to a surface, whatever is the area.
  • Ramani Aswath

    Ramani Aswath

    @ramani-VR4O43 • Jun 9, 2011

    Let us consider a zero thickness airfoil edge. I f there is a higher pressure on one side than the other, the air foil keeps deflecting, thereby changing the angle of attack till the pressures equalize.
  • Capt Spark

    Capt Spark

    @capt-spark-xvppcH • Jul 1, 2011

    It is not required to create shell to put pressure on airfoil. If you are modeling with solid elements (yhough I personally thing airfoils should be modeled with shell + beam), you can select the application region as 3D elements. Hope u are giving the pressure input as field functions