Unsteady Flow Over an Oscillating NACA 0012 Airfoil | Transient CFD Simulation in ANSYS Fluent

In this video, we simulate unsteady flow over an oscillating NACA 0012 airfoil at Re = 1×10⁶ using ANSYS Fluent. The airfoil performs a sinusoidal pitching motion with a ±10° amplitude around 0°, and the motion is modeled using the Overset and Dynamic Mesh techniques. The SST k-ω turbulence model is applied to capture transient aerodynamic behavior, including flow separation and vortex formation during oscillation. 🔹 Airfoil Type: NACA 0012 🔹 Flow Regime: Unsteady, Turbulent (Re = 1×10⁶) 🔹 Turbulence Model: SST k-ω 🔹 Motion Type: Sinusoidal Pitching (±10° around 0°) 🔹 Mesh: Structured, Overset Dynamic Mesh (mesh Motion) 🔹 Solver: Pressure-based, Transient 🔹 Domain Size: 40 m × 20 m 📚 What You’ll Learn: How to set up an unsteady oscillating airfoil simulation in ANSYS Fluent Using Overset and Dynamic Mesh motion for moving boundaries Applying SST k-ω turbulence model for unsteady turbulent flow 🕒 Chapters: 00:00 – Introduction 00:10 – Extracting Airfoil Coordinates 02:30 – Geometry Background 06:00 – Mesh Generation (Background ) 10:30 – Geometry Overset 14:15 – Mesh Generation (Overset) 18:30 – Solver and Turbulence Model ,Mesh Motion Setup 31:05 – Running the Simulation 31:45 – Results and Flow Visualization #CFD #ANSYSFluent #NACA0012 #OscillatingAirfoil #UnsteadyFlow #SSTkomega #DynamicMesh #OversetMesh #FluidDynamics #Aerodynamics #EngineeringSimulation