CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

internal velocity doesn't change in rhocentralfoam

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Search this Thread Display Modes
Old   April 25, 2023, 01:09
Cool internal velocity doesn't change in rhocentralfoam
Song Young Ik
Join Date: Apr 2022
Location: South Korea
Posts: 58
Rep Power: 4
songyi719 is on a distinguished road
I am currently running supersonic free stream simulation on rhocentralfoam

However, when I try to set velocity of internal field over mach 1, e.g. 1.5, It crashes with error 'Negative initial temperature' while calculating e

So, I reduced initial velocity to M 0.8, and set boundary to 1.5 so shock doesn't occur initially on the body and crash the computation, but it can slowly converge to result.

It did converge, but when I postprocess and watch it, it shows internal flow velocity is below M1 everywhere.

I set inlet to supersonicFreestream boundary condition, and outlet as inletOutlet .

Is there way to get rid of 'Negative initial temperature' problem, or make internalfield adapt to boundary condition velocity value, which is 1.5?
songyi719 is offline   Reply With Quote


compressible, negative initial temp, rhocentralfoam, supersonic, velocity

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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
[OLAFLOW] The OLAFLOW Thread Phicau OpenFOAM Community Contributions 457 March 27, 2024 00:59
How can it possible to change by itself in volumetric flow rate of velocity inlet BC oozcan FLUENT 10 November 25, 2016 04:54
Use Wall Friction velocity for calculation in internal Field juhuettn OpenFOAM Programming & Development 0 March 4, 2015 10:57
velocity inlet with time related change of the magnitude mobby90 STAR-CCM+ 2 February 4, 2015 04:38
mean velocity change from inlet to outlet ro FLUENT 2 April 19, 2008 13:37

All times are GMT -4. The time now is 08:41.