XFOIL - Modify the gap at the trailing edge of the airfoil
Feb 11, 2023 · I'm working on inviscid analysis flow in XFOIL. The trailing edge of my airfoil is too sharp, therefore leading to non-convergence of the analysis. Modifying the trailing edge …
How accurate is XFoil / XFLR5 at 'kinda high' Reynolds numbers?
Mar 29, 2020 · How accurate is XFoil/XFLR5 at Reynolds numbers between 2 million and 10 million? From my understanding it's only accurate at lower Re values.
What does the NCrit parameter indicate in a CFD analysis?
Jul 3, 2019 · @PeterKämpf thanks, I was looking into that. It seems XFOIL uses a simplified version of the e^N theory, though understanding how exactly it differs would take me a while.
Why XFOIL predicts a lower drag coefficient at higher Re?
May 12, 2022 · Excuse me for the (very) late reply; I disagree with your statement 'his means a higher Reynolds number almost always results in lower friction'. This is only true for the case …
aerodynamics - How are panel codes like xfoil able to model …
Jul 22, 2021 · Since Xfoil is using potential flow theory, how is it able to predict boundary layer and separation? If I'm adding perturbation terms aren't those still made with fundamental flows?
XFLR5 vs AVL vs DATCOM vs OpenVSP - Aviation Stack Exchange
Mar 19, 2023 · XFLR5 is essentially AVL with a boundary layer model added on (like XFoil). VSPAERO also has a thick-surface mode, but it won't make a big difference for the …
XFoil aglorithm for generating a NACA 4-digits airfoil
Aug 3, 2024 · 0 I need to generate NACA 4-digits airfoil points in the exact same way that XFoil software does, I need the algorithm so that I can convert it to another programming …
Using XFOIL to find the angle of attack corresponding to buffet …
Dec 5, 2020 · I am trying to find the angle of attack that corresponds to the stall point and buffet onset. I understand for stall this occurs at the maximum lift coefficient? However upon plotting …
aerodynamics - How can pressure forces produce non …
May 16, 2025 · In the diagram below, the area beneath the shape represents an ambient-pressure area, while the 2 arrows above represent a magical low-pressure force acting on the …
fluid dynamics - Is it expected to see transition from laminar to ...
Sep 2, 2022 · Check the Xtr output of XFOIL! This you will get for example by plotting the boundary layer details, or when writing a sweep of points to a file. I read somwhere that the …