
Learn to solve turbulent aerodynamics with ansys cfd using numerical algorithms and Navier-Stokes equations, with geometry preparation, meshing, turbulence models, and drag analysis.
Explore the fundamentals of flow equations and turbulence, including pressure gradients, acceleration, and stress terms, and learn how instantaneous velocity decomposes into mean and fluctuating components.
Import NACA 0012 coordinates into ICEMCFD by preparing two 41-point sections for the upper and lower surfaces, then import and mesh the geometry.
Configure prematch settings to generate a coarse mesh, adjust edge spacing on airfoil blocks, and copy parameters across pages for uniform meshing.
Assess mesh quality, convert premesh to mesh, export meshes, and increase node counts to prepare a mesh independence study with consistent boundary conditions.
Set up a Fluent case by configuring mesh, input files, boundary and inlet conditions, and solver settings to ensure convergence while monitoring drag and lift coefficients and angle of attack.
Analyze post processing results at zero angle of attack to reveal convergence across coarse, medium, and fine meshes, with drag and lift coefficients converging as mesh refinement improves.
Compare experimental and cfd drag coefficients at zero and 10 degrees of angle of attack (aoa), discuss mesh refinement, error sources, and convergence in Ansys cfd for turbulent aerodynamics.
Analyze the coefficient of pressure at zero and ten degrees angle of attack and review y+ plots through post-processing to compare airfoil surface behavior in ANSYS CFD for turbulent flows.
The purpose of this lecture is to :
1. Export the Cp plot on airfoil from fluent.
2. Read in excel and reverse the y axis so that negative values should be on upper side and positive values on down side as usually we see in the literature.
3. Reason for doing so is that " negative Cp values are on upper side of airfoil and positive values are on lower side of airfoil". So in order to Cp plot in same way we need to reverse the Cp plot in excel.
4. In next lecture we will compare this (CFD) Cp plot with the Cp plot from NASA data.
In this course you will learn about the CFD of external aerodynamics. In this course first we will create geometry of airfoil in ICEMCFD and then we will create high quality hexa mesh. After that we will solve this case in Fluent.
You will run case at angle of attack zero and angle of attack 10 and compare results with NASA data for Cp, lift coefficient and drag coefficient.
In future we will introduce more complex problems. Hope to see you soon on course.