Release 12.0 c ANSYS Inc. March 12 2009

The new view will be centered at the center of the rectangle. Select Feature from the Edge Type list. The solution has converged when the Convergence Criterion for each variable has been reached. If you make changes to the project that are upstream of the updating cell, then the cell will not be in an up-to-date state when the solution completes.

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Be sure to click the Scale button only once. Click Display and close the Mesh Display dialog box.

Residuals continuity x-velocity y-velocity z-velocity energy k epsilon. Roberto Carlos Ramos Santillano.

If computational resources allow, it is always recommended to perform successive rounds of adaption until the solution is independent of the mesh within an acceptable tolerance. When you release the mouse button, the magnication of the view will be reduced by an amount that is inversely proportional to the size of the rectangle. You will use the Equations dialog box to turn the solution of the equations on and o during such a procedure. Specically, full english songs further mesh adaption should be used in order to obtain a solution that is independent of the mesh.

By starting the calculation, you are also starting to save the surface monitor data at the rate specied in the Surface monitors dialog box. Typically, proles of important variables are examined in this case, temperature and compared to determine mesh independence. An Information dialog box will open to alert you that the calculation is complete. Enable the k - turbulence model.

Creating a Fluent Fluid Flow Analysis System in ANSYS Workbench

Hence, it is not necessary to deselect Coarsen in this instance. You can use the mouse to probe for mesh information in the graphics window. When you probe a point in the displayed domain with the mouse, the level of the corresponding contour is highlighted in the colormap in the graphics window, and is also reported in the console.

The Viscous Model dialog box will expand. In the following steps, you will adapt the mesh based on the temperature gradients in the current solution. However, monitoring the representative ow variables through iterations may show that the residuals have stagnated and do not change with further iterations. The screen shots and graphic images in the tutorials may be slightly dierent than the appearance on your system, depending on the operating system or graphics card. You can perform additional rounds of mesh adaption based on temperature gradient and run the calculation to see how the temperature prole changes at the outlet.

The sum of the ux for the inlets should be very close to the sum of the ux for the outlets. Double-click the Fluid Flow Fluent label underneath the analysis system if it is not already highlighted. The Velocity Inlet dialog box will expand. Change the solver settings.

Fluent Tutorial 1 - Fluid Flow and Heat Transfer in a Mixing Elbow

Enabling Second-Order Discretization The elbow solution computed in the rst part of this tutorial uses rst-order discretization. Set the cell zone conditions for the uid zone uid.

Elbow Workbench ZipANSYS FLUENT in Workbench Tutorial - Preparation

Various supported applications are listed in the Toolbox and the components of the analysis system will be displayed in the Project Schematic. Fluid Flow and Heat Transfer in a Mixing Elbow Introduction This tutorial illustrates the setup and solution of a three-dimensional turbulent uid ow and heat transfer problem in a mixing elbow. Both the materials will also be listed under Fluid in the Materials task page.

This could also be considered as convergence. Enable heat transfer by activating the energy equation. You do not have to include. The mesh is now sized correctly and the working unit for length has been set to inches.

Check to see if the case conforms to best practices. Click No so that the new material water is added to the list of materials which originally contained only air. Retain the default settings in the Solver group box of the General task page.

The original copy will not be aected. If you want a dierent working unit for length, other than inches e. It will also report a number of other mesh features that are checked. While an initial X Velocity is an appropriate guess for the horizontal section, the addition of a Y Velocity component will give rise to a better initial guess throughout the entire elbow. The choice of inches for the unit of length has been made by the actions you have just taken.

ANSYS FLUENT in Workbench Tutorial - Preparation

You should expect to see the residuals jump whenever you change the solution control parameters. You will need to scroll the Spatial Discretization group box down to nd Energy.