33.2 General Task Page

The General task page allows you to set various generic problem settings, such as those related to the mesh or the solver.

Controls

Mesh   contains controls relating to mesh settings.

Scale...   opens the Scale Mesh dialog box.

Check   verifies the validity of the mesh. The check provides volume statistics, mesh topology and periodic boundary information, verification of simplex counters, and verification of node position with reference to the $x$ axis for axisymmetric cases. See Section  6.5 for details.

  It is recommended that you check the mesh right after reading it into the solver, in order to detect any mesh trouble before you get started with the problem setup.

Report Quality   displays various quantities in the console window relating the mesh quality, such as Maximum cell squish and Maximum aspect ratio. See Section  6.2.2 for details.

Display...   opens the Mesh Display dialog box.

Solver   contains controls relating to solver settings.

Type   contains the solution methods available for computing a solution for your model. See Chapter  26 for details about using these options.

Pressure-Based   enables the pressure-based Navier-Stokes solution algorithm (the default).

Density-Based   enables the density-based Navier-Stokes coupled solution algorithm.

Velocity Formulation   specifies the velocity formulation to be used in the calculation. See Section  10.7.1 for details.

Absolute   enables the use of the absolute velocity formulation. This is the default setting.

Relative   enables the use of the relative velocity formulation. This option is available only with the Pressure-Based solver.

Time   contains options related to time dependence.

Steady   specifies that a steady flow is being solved.

Transient   enables a time-dependent solution. See Section  26.12 for details.

2D Space   contains options available only when solving two-dimensional problems.

Planar   indicates that the problem is two-dimensional. (This option is available only when you start the 2D version of the solver.)

Axisymmetric   indicates that the domain is axisymmetric about the $x$ axis. When Axisymmetric is enabled, the 2D axisymmetric form of the governing equations is solved instead of the 2D Cartesian form. (This option is available only when you start the 2D version of the solver.) Be sure to change the zone type of the axis of rotation to axis, using the Boundary Conditions task page, as described in Section  7.1.3.

Axisymmetric Swirl   specifies that the swirl component (circumferential component) of velocity is to be included in your axisymmetric model. You should select this option if you are solving swirling flow in an axisymmetric geometry (see Section  9.3 for more information).

Gravity   enables the specification of gravity.

Gravitational Acceleration   sets the $x$, $y$, and $z$ components of the gravitational acceleration vector. (The $z$ component is available only in 3D solvers.) See Section  13.2.4 for details about buoyancy-driven flows. This option appears only when Gravity is enabled.

Units...   opens the Set Units dialog box.