ANSYS CFD: Mastering External Aerodynamics & Turbomachinery

Explore solving a missile aerodynamics problem at Mach 0.7 and Mach 2.0 using the same workflow, emphasizing shock capture through refined mesh and shock-region matching.

Explore boundary layer concepts, first cell height, and Y+ for turbulence simulations, including Wyplosz value and near-wall modeling on a flat plate.

import the CAD model and inspect geometry for gaps, missing parts, and overlaps; change display to opaque with random colors, and make parts independent to delete them without affecting others.

Create the fluid domain around the missile body, form a hemisphere upstream and a downstream cylinder, set 90-degree alignments, then save the file for meshing in SpaceClaim.

Improve surface mesh quality using Laplace smoothing, delete the volume mesh, and generate volume from the refined surface with the Denali method through global smoothing iterations.

Master density boxes and density balls to define a volume, apply growth rules and translations, and generate a Delaunay mesh to capture the region around the geometry.

Begin with the problem description, create the missile body mesh, and analyze shock wave capture at zero and six degree angles of attack, comparing normal and axial coefficients with literature.

Learn to generate and edit prism meshes by setting prism parameters, including height, layers, and distribution, then compute and refine the mesh through layer splitting and redistribution.

Check the mesh information and export the mesh for CFX and Fluent; CFX uses predefined boundary conditions, while Fluent requires defining boundary types before exporting as an MSH file.

Open the mesh file, set material properties and turbulence model, and verify mesh units and quality for accurate external aerodynamics simulations.

Learn advanced assembly creation in SpaceClaim by aligning faces and planes, moving anchors, and setting tangent conditions for an impeller. Prepare for meshing with multiple plans and properly positioned components.

Import IGES geometry and apply preliminary SpaceClaim settings to prep external aerodynamics and turbomachinery workflows, defining inlet and outlet regions and outer boundaries for accurate flow capture.

Separate the centrifugal fan components and perform geometry processing, saving parts with their positions, deleting the inner cone and blades, and splitting the body to prepare for meshing.

Master the final inlet cone model with an extended inlet region by cleaning up internal parts, creating surfaces and a solid, and finalizing model before importing to generate high-quality tetrapods.

Create the centrifugal fan impeller model by isolating the blade section from the casing, forming a solid assembly, and preparing the geometry for tetrapod meshing.

Create a tetra-prism mesh for the inlet cone, centrifugal fan blades, and adjacent parts, define walls and interfaces, optimize size and quality, and export the Fluent-format mesh with boundary conditions.

Create a tetra-prism mesh for the volute and scroll by setting surface sizes, generating points and curves, and exporting the high-quality mesh for simulation.

Create a tetra-prism mesh for a centrifugal fan impeller by preparing geometry, defining fluid and impeller parts, and applying prism and tetra layers with an appropriate size ratio.

Determine when to apply the MRF vs SRF approaches in ANSYS CFD for external aerodynamics and turbomachinery, with rotating and fixed domains and interface conditions.

Set up the srf in Fluent for a rotating compressor stage by defining the rotation axis and rpm, and assign boundary conditions for rotor and stationary parts.

Master the frozen rotor (MRF) model in Fluent for turbomachinery, including rotating and stationary domains. Create mesh interfaces using interior definitions or mesh interface commands.

Apply four models to diverse simulation cases, selecting between the single reference frame, moving and stationary domain coupling, filter, and missing plane approaches for turbomachinery and external aerodynamics.