CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > CFX

Variation in refractive index

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 4, 2018, 03:43
Exclamation Variation in refractive index
  #1
New Member
 
S.Abrol
Join Date: Apr 2018
Posts: 2
Rep Power: 0
sanchita.abrol is on a distinguished road
Hello everyone.

I am new to using ANSYS CFX and am currently working on a simulation model on ANSYS CFX. It consists of a dome structure which is experiencing wind velocity due to atmospheric turbulence.
So, due to the wind velocity, there would be minor fluctuations in the refractive index over the dome.

I wish to add refractive index as a variable or an expression using which I can know the changes in 'n' because of the wind velocity.

Thanks in advance for comments and advice.

PS While trying to set up an expression for the same, I did find refractive index as an option under

Definition---> Variable---> Reference Pressure---> Rotation Velocity Z---> Refractive Index

but I don't know if I can use it or how.
sanchita.abrol is offline   Reply With Quote

Old   April 4, 2018, 07:02
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,630
Rep Power: 142
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
I presume you are using the refractive index for radiation modelling.

I thought refractive index was a material property, so you can try making that a CEL expression as a function of whatever you want.
__________________
Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.
ghorrocks is offline   Reply With Quote

Old   April 4, 2018, 08:33
Default
  #3
New Member
 
S.Abrol
Join Date: Apr 2018
Posts: 2
Rep Power: 0
sanchita.abrol is on a distinguished road
Quote:
Originally Posted by ghorrocks View Post
I presume you are using the refractive index for radiation modelling.

I thought refractive index was a material property, so you can try making that a CEL expression as a function of whatever you want.
Thank you Sir for acknowledging my problem. Since I am new to the software, can you please let me know how refractive index as a CEL expression.

I tried to make a new expression namely 'delta n' and I had selected the variable 'Refractive Index' as it's value. But I could not run CFX as it showed that the value of delta n should be in the format 'delta n = value'.
sanchita.abrol is offline   Reply With Quote

Old   April 4, 2018, 08:45
Default
  #4
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,630
Rep Power: 142
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
The best place to learn CEL is with the CFX tutorials. They are available on the ANSYS Customer website, or the ANSYS academic website if you are a student.

The list of available variables are in the CFX documentation, in the reference guide in the section on CEL.
__________________
Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.
ghorrocks is offline   Reply With Quote

Old   April 4, 2018, 16:36
Default
  #5
Senior Member
 
Join Date: Jun 2009
Posts: 1,770
Rep Power: 31
Opaque will become famous soon enough
Try DeltaN instead
Opaque is offline   Reply With Quote

Old   February 2, 2021, 16:20
Default
  #6
New Member
 
John
Join Date: Feb 2020
Posts: 2
Rep Power: 0
JohnnyE is on a distinguished road
Quote:
Originally Posted by ghorrocks View Post
I presume you are using the refractive index for radiation modelling.

I thought refractive index was a material property, so you can try making that a CEL expression as a function of whatever you want.

Hey,


Check out this in depth review of RI.
https://www.opticsforhire.com/blog/r...optical-design


John and Viktor
JohnnyE is offline   Reply With Quote

Reply

Tags
ansys cfx, cfx, refractive index

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
ANSYS ICEPak - setting refractive index chris92jc ANSYS 1 October 13, 2015 09:15
[OpenFOAM] Paraview 3.98 - errors when saving geometry file pajot ParaView 1 September 28, 2013 11:45
Refractive index of a solid rsslnt FLUENT 0 January 7, 2013 04:33
Doxygen documentation Tanay OpenFOAM Installation 9 September 23, 2011 12:40
OpenFOAM install on Ubuntu Natty 11.04 bkubicek OpenFOAM 13 May 26, 2011 06:48


All times are GMT -4. The time now is 18:23.