CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

Time step question

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 26, 2021, 11:36
Default Time step question
  #1
New Member
 
anonymous
Join Date: Jun 2021
Posts: 1
Rep Power: 0
Robben Cheung is on a distinguished road
Hi everyone,

I am a beginner in cfd modelling.

I have a manhole and a pipe connect to it. I make velocity inlet for the pipe and the magnitude is 3m/s. The distance between the inlet to the manhole is 10m. It should take about 3.3s for the water flows from inlet to manhole.

My time step size is set to 1s.

However, in the results, it takes 20 time steps for the water flows from inlet to manhole, which is 20s.

What mistakes I make? Or any misunderstanding on time step or hydraulics in my knowledge.

Thanks for help
Robben Cheung is offline   Reply With Quote

Reply

Tags
timesteps


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Transient simulation not converging skabilan OpenFOAM Running, Solving & CFD 14 December 16, 2019 23:12
Extrusion with OpenFoam problem No. Iterations 0 Lord Kelvin OpenFOAM Running, Solving & CFD 8 March 28, 2016 11:08
AMI interDyMFoam for mixer nu problem danny123 OpenFOAM Programming & Development 8 September 6, 2013 02:34
How to write k and epsilon before the abnormal end xiuying OpenFOAM Running, Solving & CFD 8 August 27, 2013 15:33
Could anybody help me see this error and give help liugx212 OpenFOAM Running, Solving & CFD 3 January 4, 2006 18:07


All times are GMT -4. The time now is 12:12.