CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Community Contributions

[waves2Foam] Average wave elevation decreases along the propagation axis

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 13, 2018, 08:43
Default Average wave elevation decreases along the propagation axis
  #1
New Member
 
Constance C
Join Date: Jun 2018
Posts: 2
Rep Power: 0
ConstanceC120 is on a distinguished road
Hi everyone,

I am currently modelling a Numerical Wave Tank (NWT) thanks to OpenFOAM using the toolbox waves2Foam. The solver waveFOAM allows to generate and absorb waves and also to track the free surface. My simulations run and I have great results!

However, I observe that the average wave elevation depends on the place in the NWT. In the generation and absorption zones, this is explained by the relaxation method implemented in the solver. But between these two zones, in the "CFD zone", the average elevation decreases linearly in function of the abscissa along the wave propagation axis.

I changed the size of generation and absorption but it does not have an impact on results.

Is it a problem you have already observed ?

Thanks a lot in advance !

Constance
ConstanceC120 is offline   Reply With Quote

Old   June 18, 2018, 05:24
Default Average wave elevation decreases along the propagation axis
  #2
New Member
 
Constance C
Join Date: Jun 2018
Posts: 2
Rep Power: 0
ConstanceC120 is on a distinguished road
Hi everyone,

I am currently modelling a Numerical Wave Tank (NWT) thanks to OpenFOAM using the great toolbox waves2Foam.

I observe that the average wave elevation depends on the place in the NWT. In the generation and absorption zones, this is explained by the relaxation method implemented in the solver. But between these two zones, in the "CFD zone", the average elevation decreases linearly in function of the abscissa along the wave propagation axis.

I changed the size of generation and absorption but it does not have an impact on results.

Is it a problem you have already observed ?

Also, I am wondering if it is better to control simulation with a little Courant Number (maxCo) or a little deltaT (maxdeltaT) in controlDict ?

Thanks a lot in advance !

Constance
ConstanceC120 is offline   Reply With Quote

Reply

Tags
decrease, elevation, propagation, waves2foam

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
y+ and u+ values with low-Re RANS turbulence models: utility + testcase florian_krause OpenFOAM 114 August 23, 2023 05:37
How to obtain turbulent kinetic energy data from LES model of Ansys CFX? rsin CFX 19 December 29, 2018 04:43
Near wall treatment in k-omega SST Arnoldinho OpenFOAM Running, Solving & CFD 38 March 8, 2017 13:48
UDF for Sinusoidal wave propagation at channel wall engrmansoor2534 Fluent UDF and Scheme Programming 5 August 21, 2015 04:01
help for a modified probe file (wave elevation vs time ) zhajingjing OpenFOAM 5 August 5, 2011 08:25


All times are GMT -4. The time now is 23:12.