[TurboGrid] Making a custom topology for Turbogrid ATM

Rikki-Tikki-Tavi · June 21, 2017, 11:40

Hello,

I want to generate a mesh for CFX of an axial turbine where the blades alternate between two different shapes. I.e. one blade of the one shape, then one of the other and one of the first and so on. Please believe me that I have a good reason to do this.

My question concerns Turbogrid. When activating the advanced features in Turbogrid, there is the option to make topologies other than the ones in the drop-down menu (single round round symmetric, and so on) from templates.

Ansys tells us that these are loaded in from the working directory and the Turbogrid directory, and in

C:\Program Files\ANSYS Inc\v180\TurboGrid\etc\templates

there are a bunch of files that apparently control how Turbogrid generates topology. They are ascii files, but the syntax is not exactly self-explanatory.

Is there any documentation anywhere on how to create and modify these files in a way that could help me solve my problem? I would like to have a topology that is exactly like two different "single round round symmetric" topologies next to each other.

I have tried other methods, like traditional in Turbogrid, but due to high turning, the results are not acceptable. Right now my method is to generate two topologies with a gap in between and fill it with an "adapter"-domain.

Rikki-Tikki-Tavi · February 25, 2023, 20:44

I contacted Ansys support, and at least at the time, there was no way to specify a custom topology. Some UI elements hint that it may be possible, but afaik, it was never implemented.

June 21, 2017, 11:40	Making a custom topology for Turbogrid ATM	#1
Rikki-Tikki-Tavi New Member Join Date: Jun 2017 Posts: 8 Rep Power: 9	Hello, I want to generate a mesh for CFX of an axial turbine where the blades alternate between two different shapes. I.e. one blade of the one shape, then one of the other and one of the first and so on. Please believe me that I have a good reason to do this. My question concerns Turbogrid. When activating the advanced features in Turbogrid, there is the option to make topologies other than the ones in the drop-down menu (single round round symmetric, and so on) from templates. Ansys tells us that these are loaded in from the working directory and the Turbogrid directory, and in C:\Program Files\ANSYS Inc\v180\TurboGrid\etc\templates there are a bunch of files that apparently control how Turbogrid generates topology. They are ascii files, but the syntax is not exactly self-explanatory. Is there any documentation anywhere on how to create and modify these files in a way that could help me solve my problem? I would like to have a topology that is exactly like two different "single round round symmetric" topologies next to each other. I have tried other methods, like traditional in Turbogrid, but due to high turning, the results are not acceptable. Right now my method is to generate two topologies with a gap in between and fill it with an "adapter"-domain.

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February 25, 2023, 20:44		#2
Rikki-Tikki-Tavi New Member Join Date: Jun 2017 Posts: 8 Rep Power: 9	I contacted Ansys support, and at least at the time, there was no way to specify a custom topology. Some UI elements hint that it may be possible, but afaik, it was never implemented.