CFD Online Logo CFD Online URL
Home > Forums > General Forums > System Analysis

Solution of a "simple" linear system

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

LinkBack Thread Tools Search this Thread Display Modes
Old   June 21, 2023, 12:32
Default Solution of a "simple" linear system
Senior Member
Join Date: Mar 2022
Location: United Kingdom
Posts: 177
Rep Power: 4
hunt_mat is on a distinguished road
Suppose I have the linear system:




This is a mixed system of equations, one hyperbolic and two parabolic. I thought about upwinding the first-order derivatives and doing central difference for the second-order derivatives. The domain is for 0<=x<=1, and t>0.

The method I used failed completely, I was using explicit Euler, with a low CFL number to get convergence, but the results were haywire.

Any suggestions on how to get started?
hunt_mat is offline   Reply With Quote


cfd, mixed type

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
overflow error in linear solution tsh850227 CFX 1 March 27, 2017 07:13
2way FSi, Initialize with steady solution, Fluent, Transient Sturcural, System Coupli mmkkeshavarzi FLUENT 0 June 22, 2016 08:26
2nd Order Convergence Problem for 3D Airfoil turkmengokce OpenFOAM Running, Solving & CFD 1 September 10, 2015 07:20
error on turbulence scheme immortality OpenFOAM Pre-Processing 11 August 21, 2013 08:45
Use "bounded" in scheme or not to use? immortality OpenFOAM Pre-Processing 0 June 11, 2013 16:20

All times are GMT -4. The time now is 23:26.