Plot velocity

- April 2, 2018 at 3:14 pm
  
  hugo CFD
  Subscriber
  
  I am analysing a fixed plate heat exchanger with 3 channel, 2 with fresh fluid and 1 exhaust fluid.
  
  my question is, why the velocity of the flow is higher than the inlet velocity? and because the velocity at the output of the duct increases again? the speed along the duct should decrease, right? velocity inlet is 4.16 m/s.
  
  Entrance of the duct
  
  Outlet
  
  regards
- April 6, 2018 at 7:31 pm
  
  raul.raghav
  Subscriber
  
  The increase in velocity at the center of the channel near the entrance is normal due to the boundary layer effects. But I'm not sure why it isn't consistent throughout the channel. What are conditions at the outlet?
  
  Could you upload your workbench archive file here? If you not sure how to create the archive file, refer the following thread:
  
  Workbench archive
- April 7, 2018 at 11:09 am
  
  Raef.Kobeissi
  Subscriber
  
  Hello, I think your geometry is slightly tilted and when you've taken a plane to display the velocity it didn't capture the center of the pipe all through. Is it a 3D simulation? if you select a plane correctly you will see that the velocity is consistent.
  
  Cheers

Viewing 2 reply threads

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