CFD

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CFD

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► PROJECT | Export | CFD

The CFD group contains the supported CFD product interfaces.

Export preconditions

The export availability of CFD interfaces depends on component type and design progress.

Component type

Export  available from design step

Impeller, stator with blades

"Blade edges"

Stator without blades

"Meridional contour"

Volute

"Diffuser geometry"

The interfaces ANSA, Ansys ICEM-CFD, Ansys Meshing, Ansys TurboGrid, OMNIS/AutoGrid, OpenFOAM, Pointwise, Simerics, Simcenter Star-CCM+ and TCFD support multi-component export.

[ I = Impeller     S = Stator     V = Volute     MC = Multi-Component export supported ]

Menu entry

Description

Component type

ANSA

*.igs

I

S

V

MC

File | Open

Select *.igs file

 

 

 

 

Ansys Meshing

*.stp; *.x_t; *.x_b

 

 

 

 

Ansys Workbench:

Add "Mesh" container to "Project Schematic"

Right click on "Geometry" inside the "Mesh" container:
select "Import geometry"

 

 

 

 

OMNIS/AutoGrid

*.geomTurbo

I

S

V

MC

File | New Project

“Initialize a New Project from a geomTurbo File”

Select *.geomTurbo file

 

 

 

 

Ansys ICEM-CFD

*.tinXML, *.stp

I

S

V

MC

A STEP file with named geometries is created. The names are visible in ICEM-CFD if the file is imported via Workbench Reader.

Parameters are saved in a separate XML file.

 

 

 

 

IGG

*.dat

I

S

V

MC

Multiple data files are generated: section.dat, diffusor.dat, curves.dat

File | Import | IGG Data

Select *.dat file

Repeat steps for remaining files

 

 

 

 

Pointwise

*.step

I

S

V

MC

File | Import | Database

Select *.step file

 

 

 

 

Simerics

*.spro, *.stl

I

S

V

MC

The *.spro file contains all project information. The *.stl files contain the geometry in STL format as triangulated surfaces.

In SimericsMP/ SimericsMP+: Select *.spro file under File | Open

 

 

 

 

Simcenter STAR-CCM+

*.stp

I

S

V

MC

File | Import | Import Surface Mesh...

Select *.stp file

 

 

 

 

Ansys TurboGrid

*.tse or *.inf, *.curve

I

S

V

MC

2 alternative formats are available:

a) Session file *.tse (not available within Ansys Workbench)

4 files are created: a session file <filename>.tse and
3 geometry files <filename>_hub.curve, <filename>_shroud.curve, <filename>_profile.curve.

Load the session file <filename>.tse under Session | Play Session.

b) Initialization file *.inf

4 files are created: a initialization file <filename>.inf and
3 geometry files <filename>_hub.curve, <filename>_shroud.curve, <filename>_profile.curve.

Load the initialization file <filename>.inf under File | Load TurboGrid Init File.

Alternatively you can open the curve files (<filename>_hub.curve, <filename>_shroud.curve, <filename>_profile.curve) manually under File | Load Profile Points. Beside the selection of the *.curve files one has to specify the number of blades, define the z axis as rotational axis, select the cartesian coordinate system and the length unit specified in CFturbo for export

 

 

 

 

TCFD

*.tcfd, *.stl

I

S

V

MC

The *.tcfd file contains all the CFD project information. The *.stl files contain the geometry in STL format as triangulated 3D surfaces. The .tcfd file is read and the simulation is performed automatically.

In TCFD run command:
$ CFDProcessor -setup fan.tcfd -allrun &

More info at CFD support website

 

 

 

 

Ansys Vista TF

*.fil, *.con, *.geo, *.aer, *.cor

I

S

V

MC

5 files are created:

- default file <filename>.fil
- control data file <filename>.con
- geometry data file <filename>.geo
- aerodynamic data file <filename>.aer
- correlation data file <filename>.cor

Run compiled executable version of the Vista TF code. Exported files need to be in the same folder than the executable file.

 

 

 

 

Possible warnings

Problem

Possible solutions

Inlet CFD-interface does not match previous component.

 Impeller - Impeller

 Impeller - Stator

 Impeller - Volute

 Stator  - Impeller

If possible, activate the RSI connection in CFD setup of the impeller.

 Stator - Stator

 Stator - Volute

Inlet geometry was defined in such a way that it does not match the inlet of the previous component. See geometric coupling for more details.

Outlet CFD-interface does not match next component.

 Stator - Stator

 Stator - Volute

Outlet geometry was defined in such a way that it does not match the outlet of the next component. See geometric coupling for more details.