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-   -   Line Probe Smoothing (http://www.cfd-online.com/Forums/star-ccm/113271-line-probe-smoothing.html)

badger1 February 16, 2013 08:42

Line Probe Smoothing
 
3 Attachment(s)
Hi,

I am having some trouble with the line probe function in Starccm+ and creating a plot from it.

I have a turbine blade and on the surface is a line probe starting at the surface and on a vector normal to the surface (shown in the image) Attachment 19069

I am then looking to assess the velocity profile in this region so I have created a plot.
Attachment 19070

As you can see the plot is not very smooth as some of the cells have a number of line probe points in them and others near the surface have only one.

I have used the smoothing function as shown below but there are still issues (at the corner for example at a velocity of 14m/s) so I was wondering if anyone knew of a way to sort this.
Attachment 19071

I really just want to create a line probe or something and when extracting data only take the value in each cell once and associate that value with the centre of the cell for example not multiple times at different locations in the cell.

thanks

abdullahkarimi May 21, 2013 22:36

Quote:

Originally Posted by badger1 (Post 408172)
Hi,

I am having some trouble with the line probe function in Starccm+ and creating a plot from it.

I have a turbine blade and on the surface is a line probe starting at the surface and on a vector normal to the surface (shown in the image) Attachment 19069

I am then looking to assess the velocity profile in this region so I have created a plot.
Attachment 19070

As you can see the plot is not very smooth as some of the cells have a number of line probe points in them and others near the surface have only one.

I have used the smoothing function as shown below but there are still issues (at the corner for example at a velocity of 14m/s) so I was wondering if anyone knew of a way to sort this.
Attachment 19071

I really just want to create a line probe or something and when extracting data only take the value in each cell once and associate that value with the centre of the cell for example not multiple times at different locations in the cell.

thanks

The best way would be to go to 'Resolution' of the line-probe edit and then increase it so that you will have more points. By default it is 20 points which might not be sufficient.


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