[seucj]

hello
i have a homework to simulate the liquid slosh in a tank, it's about Moving Wall BC, i have the tutorial "Simulation of Wave Generation in a Tank", but i can't find the files, especially the libudf.c.
can someone help me? if you know where i can get it or you have. please help me out! my email seuchenjian@gmail.com.
thanks again

[minhaj_iut]

Hi,

Did you manage to get the UDF file for wave generation tank. I am also looking for it. Could you email me if you already get it. minhaj_iut@yahoo.com

[82.hosein@gmail.com]

Hi,
I am also a master engineer and I am really in need of this file. could you please do me a favor and send it to me?
82.hosein@gmail.com

[Amir1]

hi guys,

Can you send me the UDF file plz?

Thanks, Amir

[adi.ptb]

hi,try this

#include "udf.h"

DEFINE_CG_MOTION(wave, dt, vel, omega, time, dtime)
{
vel[0]=(0.037098)*((1 - exp(-2.303*time))*7.7528*cos(7.7528*time) + ((2.303*exp(-2.303*time))*sin(7.7528*time)));
}

[Amir1]

Thanks a lot. Best, Amir

[Engr_AhsanBaig]

Originally Posted by adi.ptb

hi,try this

#include "udf.h"

DEFINE_CG_MOTION(wave, dt, vel, omega, time, dtime)
{
vel[0]=(0.037098)*((1 - exp(-2.303*time))*7.7528*cos(7.7528*time) + ((2.303*exp(-2.303*time))*sin(7.7528*time)));
}

Can you explain what these numeric values represent in this udf?

[Engr_AhsanBaig]

Kindly elaborate me this udf posted by adi. I want to know about the function so that i can put my own numeric values.

[adi.ptb]

I dont think that its really matter what this number represent for,its only an example,u have to decide what profile you want to use for motion of the wall,for example you can use sine function or parabolic function for motion of the wall,u just have to modify it to suit your problem

[engrmansoor2534]

Originally Posted by adi.ptb

I dont think that its really matter what this number represent for,its only an example,u have to decide what profile you want to use for motion of the wall,for example you can use sine function or parabolic function for motion of the wall,u just have to modify it to suit your problem

Dear Adi
I am trying to simulate peristaltic flow in a 2D channel. this includes a UDF which will propagate a sinusoidal wave at the channel wall as a result the wall deforms and accounts for the motion of fluid inside the channel. the problem is that I am not too good in C language I would highly appreciate if you can help me out in this matter.
thank you
Regards
Waiting for your positive feedback

[adi.ptb]

I think you should better take a look at the Dynamic meshing in UDF manual,
you can start from there, the structure is the same you just have to modify it to your desire,

[engrmansoor2534]

thank you Adi... I am working on it and will get back to you If I needed any assistance.
Regards

[like.no.other]

Hi seucj

UDF is attached