<div dir="ltr"><div><div><div><div><div><div><div><div>Hi All,<br><br><br></div>I've been beating the same problem around a bush for a while and was hoping that one of you could point me in the right direction.<br><br>
</div>I have been trying to create a high order mesh in 2D with a boundary layer. I am using the extrude command to explicitly create the boundary layer surface, rather than using the "Boundary Layer" field. I have attached my script as well as two images of my problems.<br>
<br></div>The two problems that I am having are:<br><br></div>1. When I extrude the upper and lower airfoil curves (my geometry lies in the z=0 plane) the surface normals point in the wrong direction (into the screen). I would like the normals to point out of the screen. I have tried to change the orientation by prescribing a Physical Surface composed of the extruded surfaces, but this doesn't work. <br>
<br></div>2. In order to generate the high-order mesh I first execute the "FastCurving" algorithm followed by the "Optimization" algorithm. The fast curving works fine, but when I apply optimization, the boundary layer near the leading edge becomes invalid. When this happens I get the following terminal message: <br>
<br>DBGTT: no normal edge<br><br></div>I think the issue has something to do with when the extrusion tries to combine the upper and lower splines. I know I could probably fix the issue by composing the airfoil surface of a single spline, but I would like a better solution than that.<br>
<br></div>Are there work-arounds for these issues?<br><br></div>Any help would be great! Thank you for your time.<br><br>John<br></div>