editing mesh in comsol

 hahahahaha I finally solve the problem in COMSOL myself. all these damn things come from the physics induced sequence.

next time cannot converge the model., right click mesh edit the physics induced sequence, then set the minimum order to be smaller then you can solve any model. 

https://www.comsol.com/forum/thread/53241/ivar-kjelberg-problem-on-joule-heating-analysis-over-a-thin-geometry

Ivar kjelberg after so many years you are still the best mentor on the forum. thanks for tips. 

matlab ubuntu remote control and python2 to python3

Today manage to using remote control on the ubuntu

1. you can turn on the screen sharing using privary setting and ask it to just use the password,
then you can on remina from virtual ubuntu to remote access it
or you can also use windows
instal the vnc viewer
https://www.howtogeek.com/429190/how-to-set-up-remote-desktop-on-ubuntu/

2. also I manage to install matlab on ubuntu
https://linuxconfig.org/how-to-install-matlab-on-ubuntu-18-04-bionic-beaver-linux

3.         try:
            val_local = w.vector()(val_dof[0])

from dolfin import *
from ufl import cofac
import dolfin as dolfin
import sys

import
from ufl import cofac

mesh = Mesh()
f = HDF5File(MPI.comm_world, meshname+".hdf5", 'r')

print(tstep, p_cav*0.0075 , V_cav, fdataPV)

use 2to3 convert print function from python2 to python3
sudo apt-get 2to3

mesh = Mesh()
f = HDF5File(MPI.comm_world, meshname+".hdf5", 'r')

A farewell for what-if

did not expect I am going to have my last paper to publish before I go to industry so soon.
I like research, however if I cannot get the Newton fellowship to go Imperial college, then I guess, this is going to be my last chance to do research in postdoc.

Thanks Prof yap for helping me throughout the fellowship application.

Thanks lik chuan and his team to support me unconditionally.

too many people I want to say thanks, but just to say sorry, as I have to let you down this time, as I am preparing to leave already if I dont get it.

Thank you very much NUS for every memory you give me. I am grateful for the past five years you give me. I am thinking if I got the fellowship, I will have another round to stay in research, but ya, my family need money, so I guess there is no turning back and I have to go d.

Thank you so much for the research world and wish all the best for the biomechanics journey.

I will be going to miss your guys very much.

enjoy guys!

error for gcloud permission

I recently has problem on uploading the file to gcloud services, so the solution is suggested as below

is add the username@ instances name

that solve the problem

Linux and aws

what the hell, keep facing the error cannot save text file under gedit in virtual box
so following the procedure here
https://unix.stackexchange.com/questions/52951/gedit-wont-save-a-file-on-a-virtualbox-share-text-file-busy

What fixed it for me (still a bit annoying but works), and is applicable to gedit, is to:

edit - preferences - editor Put a check on "Create backup copy"

When saving from now on, save the file once, ignore the error, save again. works every time.

note for using LINUX

haha, first time join a company using Linux, dont even know how to close the file using vi command
just press escape, it will go out of the text and go the last line, then press SHift +semi colon, thenit will appear, then you pressre q +exclamation, then last one, and omost important one, just press enter, then magic will appear.

happy to solve the problem.

also need to take note the OpenFOAM. just type writenow and save file, it will terminate immediately,


iyou can change start now from last time start. then it will start from lasttimestep.


useful vi command
https://www.cs.colostate.edu/helpdocs/vi.html

some thought

Recently decided to try CRIMSON installation, after I uninstall Virtural tool box and off the wifi, it start to run, so happy now,

finally run my model in CRIMSON software.


________________________________________________________________________

running OPENFOAM.
here is the good website to record
http://www.cfdyna.com/Home/openFOAM_Win.html

it has some protocol error, i guess it is just adminstrator problem
https://www.cfd-online.com/Forums/openfoam-installation/174281-got-error-while-copying-tutorial-files-local-directory.html
https://stackoverflow.com/questions/17895256/creating-symbolic-link-protocol-error