Hexahedral Meshing of ONERA M6 Wing Using ICEMCFD (Part 2)

Name: Hexahedral Meshing of ONERA M6 Wing Using ICEMCFD (Part 2)
Rating: 4.1 (7 reviews)

Hexa Meshing Best Practices for Validating CFD Against Experimental Data

Created bySijal Ahmed

Last updated 3/2025

English

What you'll learn

Importing files into ICEMCFD
Thinking about the grid toplogy
creating hexa mesh
creating three meshes

Course content

2 sections • 13 lectures • 3h 1m total length

Introduction7:41
Develop high-quality hexahedral meshes for the ONERA M6 wing with ICEM CFD, validating transonic external flow using lift and drag coefficients and applying meshing and post-processing best practices.

Geometry import and some preliminary settings10:32
Open ICM CFD, import the geometry via import model, adjust name selections and parts, and define boundary conditions using surfaces and place a material point inside the domain.
Discussion on Grid Topology for ONERA M6 Wing and creating master block13:44
Explore grid topology and blocking for the ONERA M6 wing, using orchid guides for circular sections, forming a master block that projects the mesh onto the aero file geometry.
Splitting block into smaller blocks and adjusting it for wing14:20
Move and split the blocking to fit the wing geometry, snap vertices to the geometry, and define solid and fluid blocks, with leading and trailing edge splits and edge-curve associations.
General adjustment of blocking for outer most edges and vertices4:56
Adjust blocking to align outermost edges and vertices with the geometry, using blocking indices and the association panel to snap vertices, then verify placement with symmetry and cemetery controls.
Preliminary mesh settings and further adjustments to blocking12:43
Refine the preliminary blocking for the ONERA M6 wing in ICEM CFD, fix low mesh density and edge associations, and prepare the mesh for wing and trailing-edge grid generation.
O-Grid around wing for boundary layer12:38
Create an o-grid around the ONERA M6 wing in ICEMCFD, block geometry for near-wall refinement with 0.2 offset and 20 cells using geometric spacing to capture boundary layer.
Refining mesh in O-Grid16:28
Refine the O-grid mesh by copying remesh parameters between edges, adjusting spacing, and using edge matching and reference planes to improve wake-region resolution with controlled cell counts.
Creating 2nd O-Grid in trailing edge region18:57
Create a second o-grid on the trailing edge of the ONERA M6 wing using ICEM CFD, refine blocking and spacing with index control, pre-mesh tuning, and symmetry considerations.
Refining and improving mesh in whole domain9:49
Refine the whole-domain hex mesh by enforcing determinant (2x2x2) > 0.3, minimum angles > 18 degrees, and maximum angles < 165 degrees, while increasing edge node counts and copying spacing.
Solving low quality mesh issues to improve minimum quality and min angle6:08
Address low quality mesh on the Onera m6 wing by copying edge spacing to padded edges and replotting to improve minimum quality and angle.
Preparing final mesh ready for simulation33:59
Refine the final hexahedral mesh for the ONERA M6 wing by improving edge spacing, blocking control, and plane placement to enhance simulation accuracy and convergence.
Exporting mesh19:12
Convert the pre mesh to an unstructured hexa mesh, define boundary conditions, and export for Fluent or CFX solvers; study mesh independence with fine, medium, and coarse meshes.

Requirements

Basic understanding of CFD and mesh generation in ICEMCFD
ANSYS 2022 R1 professional installed on your computer
Computer with i5/i7 CPU and atleast 8 GB RAM

Description

In this course, you will learn how to create a high-quality structured hexahedral mesh for the ONERA M6 wing using ICEMCFD, a powerful tool for precise mesh generation in Computational Fluid Dynamics (CFD). The ONERA M6 wing is a well-known test case used in aerodynamic studies to validate CFD results against experimental data. Mastering structured meshing is crucial for achieving accurate and reliable simulations, making this course essential for those interested in high-fidelity CFD analysis.

This is the second part of a three-part course on the CFD analysis of the ONERA M6 wing. The first part covers geometry creation in SolidWorks, this part focuses on structured hexahedral meshing in ICEMCFD, and the third part will cover CFD simulation and validation against experimental data from the AGARD AR 138 report.

Meshing is a critical step in CFD simulations because it directly affects the accuracy, stability, and convergence of results. Hexahedral meshes are preferred in aerodynamic simulations due to their ability to reduce numerical diffusion and improve solution precision. In this course, you will learn how to generate a structured mesh that captures the complex aerodynamic features of transonic flow over the ONERA M6 wing, ensuring high accuracy and computational efficiency.

What You Will Learn

Setting up the computational domain for external flow simulation
Creating a high-quality structured hexahedral mesh in ICEMCFD
Applying boundary conditions and refining the mesh for better accuracy
Optimizing mesh quality to achieve grid convergence
Exporting the mesh for use in ANSYS Fluent for CFD simulation

Why Take This Course?

Hands-on experience with industry-standard meshing techniques
Real-world application using a benchmark test case for CFD validation
Improved understanding of structured meshing for aerodynamic simulations
Practical learning with step-by-step guidance and real project files

This course provides all necessary resources, including geometry files, domain setup, and mesh files, to help you follow along seamlessly. Whether you are a student, researcher, or professional, this course will enhance your CFD skills and prepare you for advanced aerodynamic simulations.

Enroll now and take the next step toward mastering CFD meshing with ICEMCFD.

Who this course is for:

Interested in learning CFD analysis of wings

Hexahedral Meshing of ONERA M6 Wing Using ICEMCFD (Part 2)

What you'll learn

Explore related topics

Course content

Introduction1 lecture • 8min

Hexa mesh generation in ICEMCFD12 lectures • 2hr 53min

Requirements

Description

Who this course is for: