Fluids

Fluids

  1. All Channels
  2. Fluids
  3. Acoustic impedance boundary condition at wall

Acoustic impedance boundary condition at wall

    • February 28, 2017 at 9:46 am
      Nikita
      Ansys Employee

      How to define acoustic impedance boundary condition at wall?

    • March 21, 2017 at 12:03 pm
      Vishal Ganore
      Ansys Employee

      The impedance boundary condition (IBC) lies in between a traditional reflective boundary condition and a fully non-reflective boundary condition. There is no direct implementation of an impedance based wall boundary condition. However one. The soft walls where the acoustics wave are partially dampened /partially reflected are then modeled as velocity inlet with velocity equal to zero. On this inlet one can then use the impedance boundary. With zero velocity inlet there is not heat coming with convection. To disable heat diffusion one has to disable inlet diffusion in the energy equation. You can do this under the TUI: /define/models/energy then switch include diffusion at inlets? to no Keywords: Acoustic, Impedance, Wall, BC, Boundary,

Viewing 1 reply thread
  • You must be logged in to reply to this topic.
Ansys Innovation Space

Simulation World 2022

Check out more than 70 different sessions now available on demand. Get inspired as you hear from visionary companies, leading researchers and educators from around the globe on a variety of topics from life-saving improvements in healthcare, to bold new realities of space travel. Take a leap of certainty and check out a session today here.

Earth Rescue – An Ansys Online Series

The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.

Ansys Blog

Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.

© 2022 Copyright ANSYS, Inc. All rights reserved.