Dynamic Mesh Training Course in ANSYS Fluent

Objectives: Master the fundamentals of dynamic mesh and when to use it in CFD simulations

Key Concepts:

• • What is dynamic mesh and why it matters in ANSYS Fluent • Real-world applications: pistons, valves, flapping wings, fluid-structure interaction • Types of mesh motion: rigid body, deforming mesh, and remeshing • Overview of all dynamic mesh methods supported in ANSYS Fluent

Objective: Choose the right mesh motion technique for your moving boundary problem

Key Concepts:

• • Mesh smoothing methods: spring-based and diffusion-based approaches • Layering method for linear motion problems • Remeshing techniques for large deformations • How to compare methods and pick the best one for your CFD simulation • Mesh quality checks and limitations

Objective: Set up dynamic mesh zones and moving boundaries correctly in ANSYS Fluent

Key Concepts:

•  Creating dynamic mesh zones using Fluent GUI • Defining motion with built-in options and UDF ANSYS Fluent • Setting boundary conditions for moving mesh problems • Best practices for case setup • Motion preview and verification tools

Objective: Write custom UDFs to control any type of mesh motion in your simulations

Key Concepts:

• • C programming basics for ANSYS Fluent UDF • Essential macros: DEFINE_CG_MOTION, DEFINE_GRID_MOTION, DEFINE_GEOM • Creating time-dependent and position-based motions • Compiling and hooking UDFs in ANSYS Fluent • Debugging tips and common errors

Objective: Simulate piston engines and compressors using the layering method

Key Concepts:

• Setting up piston-cylinder geometry for dynamic mesh
• Implementing layering for cyclic piston motion
• Using rigid body motion and UDF for piston control
• Zone interactions and mesh handling
•  Applications in engines, compressors, and pumps

Objective: Master complex rotating machinery with remeshing and mesh smoothing

Key Concepts:

• Gear pump geometry setup with dynamic interfaces
• UDF-based motion for synchronized gear rotation
• Combining remeshing and smoothing for best results
• Handling mesh quality during rotation
• Applications in lubrication systems and fluid pumps

Objective: Simulate flow control valves with deforming mesh techniques

Key Concepts:

• • • Circular valve geometry and dynamic mesh setup

  • • Time-dependent valve motion using UDF

  • • Mesh deformation strategies for valve movement

  • • Pressure and flow rate analysis

  • • Applications in hydraulic systems and flow control

Objective: Perform advanced 6DOF simulations for projectile aerodynamics

Key Concepts:

• • •External ballistics and projectile motion setup

  • • Configuring 6DOF solver parameters (mass, inertia, center of gravity)

  • •DEFINE_SDOF_PROPERTIES and DEFINE_CG_MOTION UDFs

  • • High-speed flow boundary conditions

  • • Post-processing drag, lift, and stability metrics