Ranjeet

Friday 28 April 2017

Introduction to CFD

Introduction to Computational Fluid Dynamics

Below is the link for two short videos that cover the basic principles of CFD.

Part 1

Part 2

Sunday 12 February 2017

List of open source reservoir simulator package

Open Porous Media (OPM)
MATLAB Reservoir Simulation Toolbox (MRST)
BOAST
DuMux
IFLO
Palabos
OpenFoam
OpenLB
SIMED II (Coal Seam Methane), OpenGeoSys
TOUGH
OOMPFS
DUNE

The Open Porous Media (OPM)

The Open Porous Media (OOpen Porous Media (OPM)

Saturday 30 July 2016

Java 8 Installation in Linux

Open a Linux terminal (command prompt) and issue these commands:

You will be prompted "Do you want to continue?". Hit y and enter When completed it will return to the shell prompt. Now issue this command:

Now, install java 8 using below command. Hit Ok when get asked and continue. Java 8 will download Oracle Java 8 and install it

To verify that Oracle Java 8 can be found and is the right version issue this command:

To configure:

If you ever wish to remove Oracle Java 8 you can use this command:

Sunday 14 February 2016

Add Environmental (Path) Variable in Linux

1. Open .bashrc file.

gedit .bashrc

2. Add path in basrc file like this: (In this care our runnable file is in bin directory.)

PATH=/usr/ansys_inc/v162/ansys/bin:$PATH
export PATH

3. Update the environmental.

source .bashrc

Done!

How to add user into sudoers in Red Hat Linux server

Manual way:

change to root
change directories to /etc
allow to write to sudoers file which READ-ONLY by default
add line with user in question and allow him to use sudo

su
cd /etc
ls -l
chmod +w sudoers
gedit sudoers
--- scroll down in file and find line (root ALL=(ALL) ALL) ---
---- right there add this for the user (example userid: ranjeet)---
root ALL=(ALL) ALL
ranjeet ALL=(ALL) ALL

Exit & Save
chmod -w sudoers  (make the sudoers READ-ONLY again)

All is done and now user “ranjeet” can use elevated right with use of sudo before the command. However if you have too many users to add, it would make sense add them to group and and add the group to sudoers instead of all separate users