CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > Main CFD Forum

Inlet velocity becomes entire domain velocity

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 4, 2023, 13:34
Default Inlet velocity becomes entire domain velocity
  #1
New Member
 
Tarık Yaman
Join Date: Dec 2021
Location: Turkey
Posts: 9
Rep Power: 5
dord is on a distinguished road
Hello,


I was working on 2-way fsi analysis. I am trying to simulate the model in figure-1 (google drive). I wanted to validate the results in section 3.1.2 of the article titled "Computation of fluid–structure interaction on lightweight structures".

However, I am getting an error due to a sudden pressure effect on the plate.

Looking at the contours, I thought it would be because the inlet velocity was suddenly the velocity of the entire domain.

To eliminate this situation, I set the inlet velocity to 0 for the first 5 time steps and 1 m/s for the next steps.

I set up another analysis to try the results and again faced the same issue.


I want the flow to travel a distance that will be proportional to the velocity value from the inlet to the outlet. For example, if my inlet velocity is 1m/s, after 0.1 second I want the flow to move 0.1 meters. Is this possible?


You can access all settings and contour pictures from the link : https://drive.google.com/drive/folde...ER?usp=sharing


Thanks for be interested.
dord is offline   Reply With Quote

Reply

Tags
initialization, inlet velocity, patch, transient


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
Atmospheric BCs for domain with a single boundary serving as both the inlet & outlet Newtonian OpenFOAM Running, Solving & CFD 0 July 21, 2022 15:07
Making fluid velocity zero in the inlet of domain nived FLUENT 4 May 28, 2018 10:40
Difficulty in calculating angular velocity of Savonius turbine simulation alfaruk CFX 14 March 17, 2017 07:08
patching velocity profile to the inlet face of domain vasuaero1988 Fluent UDF and Scheme Programming 1 September 29, 2010 04:49
ATTENTION! Reliability problems in CFX 5.7 Joseph CFX 14 April 20, 2010 16:45


All times are GMT -4. The time now is 14:07.