Hello Sonia Xavier,
I am not sure to understand exactly what you want. If it is to get in your results file U, k, epsilon, sediment concentration, you can read the TELEMAC-3D user manual, in particular the subsection describing the 3D RESULT FILE + keyword VARIABLES FOR 3D GRAPHIC PRINTOUTS.
U, V, W, K, EPS, TAn if n is the tracer corresponding to sediment.
I hope you have read the latest releases of the manuals, available her :
wiki.opentelemac.org/doku.php?id=documentation_latest
The latest official release is v8p1r2 (tagged last week).
For data extractions or plots from results file, you can have a look at the notebooks (jupyter-notebooks name.ipynb in the notebooks folder).
Hope this helps,
Chi-Tuan