September 14, 2018 at 12:08 pmmariannebassilSubscriber
I am using the pressure based solver and i don't find the way to put a condition of non reflective wall to a pressure outlet wall
September 14, 2018 at 2:27 pmKonstantine KourbatskiAnsys Employee
can you be more specific in your description? What version are you running? Is it steady or transient? Pressure-based solver includes an option to specify non-reflecting outlets (or inlets)
September 14, 2018 at 5:24 pmmariannebassilSubscriberIm using 19.1 version, transient flow, i have a wall with pressure outlet 0 pa but i need to mention it as non reflecting wall and i dont find the option
September 14, 2018 at 11:59 pmkluAnsys Employee
The general NRBCs using the pressure-based solver are not compatible with steady-state cases or the Eulerian multiphase model. For VOF or mixture multiphase cases that involve compressible gases or compressible liquids, only pressure inlets and pressure outlets can enable the non-reflecting boundary condition option. Make sure to have compressible fluids in the model for example air that uses the ideal-gas model for density.
September 15, 2018 at 6:20 ammariannebassilSubscriber
I am using a transient case and an ideal gas so as u said i can activate the NRBC option, please can i know how
September 17, 2018 at 10:51 ammariannebassilSubscriber
It is ok i found it ( acoustic wave equation>> non reflective)
Thank you anyway
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