Create a new task

Create a new task

Ver: 3

DESCRIPTION

Entering this menu creates a new task. The new task becomes the current one, and the global attributes of the task are defined.

One task (at least) must exist to run Polyflow.

OPTIONS The header summarizes the current setup.

The default is :
F.E.M. task

steady-state
plane geometry (2-D only) The current setup is modified by selecting options. The geometrical dimension is that of the input mesh; it can only be modified by reading another mesh file.

2-D problems

-1 Upper level menu with the current setup

Accepts the current setup

1 F.E.M. task

The current task is a classical flow/heat condution analysis problem using the Finite Element Method

2 MIXING task

The current task is a mixing analysis problem

3 Steady-state problem(s)

Makes the current task "steady-state"

4 Time-dependent problem(s)

Makes the current task "time-dependent"

5 Evolution problem(s)

Makes the current task "evolutionary". Evolution means that a continuation scheme will be used (on non-linearities)

6 Rigid rotation

This option must be selected if the flow problem is simulated in a rotating reference frame. For 2-D plane flows, the rotation axis is the z axis (normal to the plane). The value of the angular velocity is requested; its default value is 0.

7 2D Planar geometry

Planar geometry; the velocity field has two components

8 2D Axisymmetric geometry

Axisymmetric geometry: the velocity field has two components in a cylindrical reference frame ; (X,Y) corresponds to (R,Z)

9 2D 1/2 Planar gemotry

Channel flow:
the velocity field has three components. This is the equivalent to option 6 in a planar situation.

10 2D 1/2 Axisymmetric geometry

Axisymmetric geometry with swirling: the velocity field has three components

11 2D shell geometry

This option allows the user to define a blow molding simulation where the parison and the molds are defined by surfaces in the 3D space (3 components for the coordinates).

3-D problems

-1 Upper level menu with the current setup

Accepts the current setup

1 F.E.M. task

The current task is a classical flow/heat condution analysis problem using the Finite Element Method

2 MIXING task

The current task is a mixing analysis problem

3 Steady-state problem(s)

Makes the current task "steady-state"

4 Time-dependent problem(s)

Makes the current task "time-dependent"

5 Evolution problem(s)

Makes the current task "evolutionary". Evolution means that a continuation scheme will be used (on non-linearities)

6 Rigid rotation

This option must be selected if the flow problem is simulated in a rotating reference frame. For 3-D flows, the rotation axis can be either the x-, y- or z-axis of an inertial reference frame.
The value of the angular velocity is requested.
The default is 0.

EXAMPLES A steady-state problem is used to solve problems which do not require a strategy for non-linearities.
The iterative scheme starts from zero or from a previous solution.

An evolution problem is defined when the user wishes to increment parameters or boundary conditions progressively.

SEE ALSO

evolution (UM)

time-dependent problems (UM)

s-dependence

time-dependence

-1	Upper level menu with the current setup
	Accepts the current setup
1	F.E.M. task
	The current task is a classical flow/heat condution analysis problem using the Finite Element Method
2	MIXING task
	The current task is a mixing analysis problem
3	Steady-state problem(s)
	Makes the current task "steady-state"
4	Time-dependent problem(s)
	Makes the current task "time-dependent"
5	Evolution problem(s)
	Makes the current task "evolutionary". Evolution means that a continuation scheme will be used (on non-linearities)
6	Rigid rotation
	This option must be selected if the flow problem is simulated in a rotating reference frame. For 2-D plane flows, the rotation axis is the z axis (normal to the plane). The value of the angular velocity is requested; its default value is 0.
7	2D Planar geometry
	Planar geometry; the velocity field has two components
8	2D Axisymmetric geometry
	Axisymmetric geometry: the velocity field has two components in a cylindrical reference frame ; (X,Y) corresponds to (R,Z)
9	2D 1/2 Planar gemotry
	Channel flow: the velocity field has three components. This is the equivalent to option 6 in a planar situation.
10	2D 1/2 Axisymmetric geometry
	Axisymmetric geometry with swirling: the velocity field has three components
11	2D shell geometry
	This option allows the user to define a blow molding simulation where the parison and the molds are defined by surfaces in the 3D space (3 components for the coordinates).