Flow Around a Curved Channel | Lesson 9 – Beginner CFD Series

Watch the full playlist here: [ • Ansys Fluent Academy – Beginner CFD Series    • Ansys Fluent Academy – Beginner CFD Series  ] Enjoyed this CFD tutorial? ☕ Support FluidXAV to keep learning content coming: https://buymeacoffee.com/xavgroup Welcome to Lesson 9 of the Ansys Fluent Academy – Beginner CFD Series! In this lesson, we analyze flow around a curved channel to understand how pressure varies along a curved path using Ansys Workbench, Fluent Meshing, and Fluent Solver. We start by creating the 2D curved channel geometry, generate a structured mesh, and set up boundary conditions for inviscid water flow. The inlet velocity is 10 m/s, and the operating pressure at the lower point is 40 kPa. Gravity is included to study the pressure variation along the vertical line inside the bend. In this simulation, we use: Inviscid flow model – to neglect viscous effects and focus on pressure and inertia. PRESTO! pressure scheme – for accurate pressure prediction in curved geometries. SIMPLEC pressure–velocity coupling – to ensure faster and stable convergence. Custom Field Function – to include the hydrostatic term (Pressure = absolute-pressure – density × 9.81 × y) for direct comparison with analytical results. After running 100 iterations, the residuals decrease from 1×10⁻³ to around 1×10⁻⁹, confirming a well-converged solution. Finally, we compare the CFD pressure results with the analytical solution, showing excellent agreement with minor deviation (≈9–13%). This tutorial helps beginners understand how to set up, solve, and analyze curved internal flows in Fluent — building a strong foundation for more advanced CFD problems. 🧩 Key Topics Covered 2D Curved Channel Geometry Creation Meshing in Ansys Workbench Inviscid Flow Setup in Fluent Boundary Conditions and Operating Pressure Custom Field Function for Pressure Pressure–Velocity Coupling (SIMPLEC) PRESTO! Pressure Discretization Pressure Monitoring and Convergence Comparison: CFD vs Analytical Solution 📈 Learning Outcome By the end of this lesson, you’ll understand how to: ✅ Model and simulate inviscid flow in curved geometries ✅ Create custom pressure functions in Fluent ✅ Analyze pressure variations under gravity ✅ Validate CFD results with analytical methods 00:00 Introduction 00:35 Problem description 03:12 Ansys Workbench 03:45 SpaceClaim 08:20 Angle measurement in SpaceClaim 10:28 Ansys Meshing 12:55 Ansys Fluent Luncher 14:32 Inviscid Flow in Ansys Fluent 17:52 Pressure-velocity Coupling (SIMPLEC) 18:01 Pressure (PRESTO!) 18:45 Check Convergence in Ansys Fluent 19:45 Custom Field Function 23:20 Create a Point surface in Ansys Fluent 32:12 Create Line/Rake in Ansys Fluent #AnsysFluent #CFDtutorial #BeginnerCFDSeries #FluidJob #FluentMeshing #AnsysWorkbench #InviscidFlow #CurvedChannelFlow #AnsysSimulation #EngineeringEducation #FluentCFD #computationalfluiddynamics 🔔 Subscribe for weekly Ansys Fluent and CFD tutorials: [   / @fluidxav  ] 👍 Like | 💬 Comment | 📤 Share with your CFD network