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Source: Ansys
Available when Use Adaptive Sizing is set to Yes, the Resolution option controls the mesh distribution. The default setting is Program Controlled. The range of values that can be set is 0 to 7, with the mesh resolution changing from coarse (0) to fine (7).
A value of -1 will set the Resolution to the default value set for Adaptive Resolution in the Options dialog box.
If Adaptive Resolution is set to Program Controlled, the default value is 4 when the Physics Preference is Electromagnetics or Explicit. For all other Physics Preference, the default value is 2.
If Adaptive Resolution is explicitly set in the Options dialog box (0-7), the value set will be used as default.
Note:
If you set the Resolution explicitly, the set value will be retained.
For databases from previous releases (prior to Release 2020 R1), the Resolution will be explicitly set to a value which is not the default.
For new databases, if Resolution is set to Default and the Adaptive Resolution in the Options dialog box is different than it was when the database was saved, the new value will be used instead.
In this first tutorial, you will learn to generate a fine mesh of a geometry using Ansys Meshing.

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 Meshing | Inflation
You can set the Use Automatic Inflation control so that inflation boundaries are selected automatically depending on whether or not they are members of Named Selections groups.
Related Articles
Ansys Meshing | Inflation
You can set the Use Automatic Inflation control so that inflation boundaries are selected automatically depending on whether or not they are members of Named Selections groups.
Ansys Meshing – Keyframe Animation
You can make animations based on keyframes. Keyframes define the start and endpoints of each section of animation.
Ansys Meshing – Match Control
In this tutorial, you will learn how to use the Match Control tool in Ansys Meshing. Match Control allows duplicating the mesh in a body. We have two option Match Control Cyclic and Arbitrary.
Ansys Meshing – Body of Influence
The Body of Influence option is available in the Type field if you selected a body and Use Adaptive Sizing is set to No. Using this option, you can set one body as a source of another body
Ansys Meshing – Sphere of Influence
The Sphere of Influence option is available in the Type field after you select an entity such as a body, face, edge, or vertex.
Ansys Meshing – Sizing
By default, Use Adaptive Sizing is set to Yes, unless Physics Preference is set to CFD or Nonlinear Mechanical (in which case the default is Capture Curvature set to Yes),
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