# Supported AcuSolve Entities

Entities used to set up a case to run a CFD analysis using AcuSolve.

- Global
- Contains the physical description of the case, for example, laminar/turbulent and numerical parameters, such as convergence tolerance.
- Output
- Define the frequency of different outputs: Derived Quantity Output, Nodal Output and Restart Output.
- Volumes
- Components with Fluid and Solid card images are grouped in this folder.
- Surfaces
- Components with Inflow, Outflow, Wall, Slip, Symmetry and Far Field card images are grouped in this folder.
- Components With No Card Image
- Components with no card image will not be exported with the solver deck. By default, all of the components will not have a card image. You have to choose the appropriate card image for the component and the component will be moved to the Surfaces or Volumes folder accordingly.
- Nodal Boundary Condition
- Define boundary conditions on nodes apart from surface boundary conditions.
- Materials
- Contains material definitions.
- Body Force
- Define gravity and heat source for volume components.
- Periodic Boundary Condition
- Define periodic or axisymmetric boundaries along with the transformation definition.
- Reference Frame
- Define rotational reference frame for the model.
- Mesh Motion
- Define translation and rotation for the mesh.
- Emissivity Model
- Define emissivity model for radiation surface.
- Multiplier Function
- Define multiplier functions (Constant, Piecewise Linear, Cubic Spline, Piecewise Log Linear) and utilize multiplier functions to ramp up supported parameters, for example angular velocities of reference frame.
- Parameters
- Parameters can be utilized to run solver parameter based studies.