You can also change the value with the mesh_enhance_gradation in the Flag Manager. When simulating external aerodynamics with the SST k-omega turbulence model, a low value of y+ is essential for accurate flow prediction. This is an effective way to reduce the element thickness near the wall and the value of Turbulence y+. When the Number of layers is greater than 5, you should change the Layer gradation value from Auto to a value. Use this setting to improve the accuracy of heat flux at the wall as well as for the SST k-omega turbulence model. Gradation allows the layers nearest the wall to be smaller than those closest to the neighboring unstructured elements. As the number of enhancement layers increases, the layer thickness often has a tendency to become uniform.
#Autodesk mesh enabler 2015 download
To download the appropriate object enabler: Navigate to Autodesk Knowledge Network. For non-Autodesk object enablers, the Proxy Information window that appears in AutoCAD when opening a drawing should show the company and its web address to acquire the object enabler. Use Layer gradation to control the rate of growth of the enhancement layers. Object enablers installed for AutoCAD will apply to all AutoCAD-based software. Reduce this factor for thinner layers and reduced total thickness. The layer height is determined by multiplying this factor by the local isotropic length scale for that surface.
Rotating-region analyses, you can improve stability by reducing the number of layers to 1.Ĭontrols the layer thickness. In the latter case, meshes that have been enhanced have been shown to be significantly less disruptive than non-enhanced meshes to the flow near the walls, resulting in improved flow uniformity throughout the channel. Examples include flows in which the turbulence is very sensitive to the flow near the walls and within long, narrow channels. Layer uniformity is important for accuracy in certain analyses. Gradual transitioning between surfaces ensures gradual variations in element height throughout the model. Mesh Enabler will works with Inventor 2013, 20. You are unable to draw sketches on Mesh faces, or created 2D drawings of them, they are just graphical representations of geometry. Element layer height across each surface is uniform, and is based on the smallest length scale on a surface. Without the Mesh Enabler, STL files come into Inventor as mesh entities, which are not really much use to the user.
Diagnostic algorithms detect and avoid element clashes in small gaps automatically. Mesh Enhancement creates layers before the 3D mesh is constructed. Mesh Enhancement ensures adequate mesh across small gaps, which can be very difficult manually. It augments the original mesh to produce a smooth distribution along all walls, which is critical for accurate flow and temperature prediction. Mesh Enhancement adds element layers along all fluid-wall and fluid-solid interfaces.