Hydraulic Diameter and Symmetry Boundary Conditions

- February 18, 2022 at 2:00 am
  
  FluxLimited
  Subscriber
  
  If I have, say, a 1/4 symmetry model of a straight cylindrical pipe (with two symmetry boundary conditions) do I input 0.5*diameter in the turbulence specifications as the hydraulic diameter? Or is the correct hydraulic diameter the actual diameter of the full model?
- February 18, 2022 at 7:16 am
  
  Murari Iyengar
  Ansys Employee
  
  Hi FluxLimited The hydraulic diameter value needs to be equal to the diameter of the full model. Although you are simulating 1/4 of the model using symmetry, the diameter does not change, thus the hydraulic diameter also remains the same.

Viewing 1 reply thread

You must be logged in to reply to this topic.

Ansys Innovation Space

Boost Ansys Fluent Simulations with AWS

Computational Fluid Dynamics (CFD) helps engineers design products in which the flow of fluid components is a significant challenge. These different use cases often require large complex models to solve on a traditional workstation. Click here to join this event to learn how to leverage Ansys Fluids on the cloud, thanks to Ansys Gateway powered by AWS.

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.

Trending discussions