Fire resistance furnace laminar flamelet model

- November 30, 2020 at 6:34 pm
  
  Morne_vB
  Subscriber
  
  I am trying to simulate a furnace model with only the bottom burner running at full power (300 kW), with 5 points measuring temperature (5 thermocouples), numbered from top to bottom 1-5. An imported CHEMKIN file is used for the diesel mass inlet (C12H23) is 0.0035 kg/s and air (21% O2 + 79% N2) inlet 0.04 kg/s. There is a pressure outlet flue at the top and 2 outlets at the back of the furnace. The viscous model is k-eps with realizable standards wall treatment and a DO radiation model is used.
- December 1, 2020 at 1:23 pm
  
  KR
  Administrator
  
  Hello,nYes, this looks like a convergence issue to me. This could be because of several reasons. nWhat is your mesh quality? nAlso, how large is your time step and what is your Courant number. Please try to reduce your time step to see if you are able to obtain a better convergence. nAlso, make sure your boundary conditions are physical.nThank you.nKarthikn

Viewing 1 reply thread

The topic ‘Fire resistance furnace laminar flamelet model’ is closed to new replies.

Ansys Innovation Space

SimACE-23

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