Ansys Fluent Tutorial | Solidification
Written by cfd.ninja
Solidification uses the same model as melting, run in the other direction. Each cell carries a liquid fraction, and the latent heat released as that fraction drops from one to zero is what drives the thermal field.
The mushy zone is where the physics lives. Between fully liquid and fully solid the material resists flow, and that resistance is imposed through a constant that damps the velocity as the cell freezes. Its value changes how the solidification front advances, so it is worth testing rather than accepting by default.
For casting problems the useful outputs are the shape of the front over time and where the last liquid remains, since that is where shrinkage defects appear. Both depend on resolving the front, which means a fine enough mesh there and a time step that keeps the interface moving less than a cell per step.
Convert Photography to Mesh using Gmsh
Learn how to generate a CFD mesh from any photograph using the Gmsh mesher.
Ansys CFX Tutorial | Flow through Porous Media
In this tutorial you will learn how to simulate a Flow through Porous Media using Ansys CFX.
Related Articles
Ansys Meshing – Multizone + Inflation
In this tutorial, you will learn to use the Multizone and Inflation tool using Ansys Meshing.
Ansys Meshing – Multizone + Inflation + Face Meshing
In this tutorial you will learn how to generate a structured mesh using Ansys Meshing.
Ansys Meshing | Inflation
In this tutorial, you will learn to use the Inflation tool in Ansys Meshing to control the boundary layer mesh near walls for more accurate CFD simulations.
Convert Photography to Mesh using Gmsh
Learn how to generate a CFD mesh from any photograph using the Gmsh mesher.
Ansys Fluent Tutorial | Heatsink
In this tutorial, you will learn how to simulate a Heatsink using Ansys Fluent. In this first video, you will see how to create the geometry and the mesh using DesignModeler, Ansys Meshing and Ansys Fluent.
Ansys Fluent | Hydraulic Jump
Ansys Fluent | Hydraulic Jump Written by cfd.ninja Free surface is the surface of a fluid that is subject to zero parallel shear stress, such as the interface between two homogeneous fluids, for example, liquid water and the air in the Earth's atmosphere....