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<p class="MsoNormal">Dear Prof. Fischer</p><p class="MsoNormal"><br></p><p class="MsoNormal">Thanks for the detailed reply. I will use your
description and understand the relevant subroutines of navier5.f routine in
detail.</p>
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<br>
Regards,<br>
Ravi</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, May 26, 2014 at 5:39 PM, Ravi Tumkur <span dir="ltr"><<a href="mailto:ravi.tumkur@gmail.com" target="_blank">ravi.tumkur@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Dean NEK Users,<br clear="all"><div><br></div><div>I am looking for some sort of help or documentation explaining the object definitions for evaluating surface integrals. <br>
<br></div><div>My eventual application will be to evaluate the drag and lift forces for the case of a 2D flow past a cylinder, supported on elastic foundation, i.e., vortex-induced vibration simulations using NEK5000.<br>
<br></div><div>So far, the examples available in the repository and the NEK mailing list have enabled me to simulate the motionless cylinder and the case of cylinder moving with a prescribed motion. <br><br>However, I have hard time decoding the surface integral evaluation in subroutine "set_obj" available in the "ext_cyl.usr". Overall, I understand that there is a conditional statement to find all the elements (or element edges) with "W" boundary condition and then an object is created for each of those elements. It would be very helpful is someone could point me to a documentation/help, which gives an explanation for the following functions or variables which have been used in the "set_obj" subroutine.<br>
<br></div><div>1. variable "hcode"<br></div><div>2. variable "lochis"<br></div><div>3. variable "nhis"<br></div><div>4. function or variable "cbc" <br></div><div>5. variable "nmember"<br>
</div><div>6. function or variable "object"<br><br></div><div>Any hints to understand this subroutine "set_obj" of the example model "ext_cyl" would be of great help for me to understand and develop the model for vortex-induced vibration. <br>
<br></div><div>In addition, if there is already an example model to perform vortex-induced vibration, please let me know.<br><br></div><div>Thanks in advance. Any hints and tips are much appreciated. <br><br></div><div>Regards,<br>
</div><div>Ravi<span class="HOEnZb"><font color="#888888"><br><br></font></span></div><span class="HOEnZb"><font color="#888888"><div><br></div><div>-- <br>Ravi Kumar T R<br><br>University of Illinois at Urbana-Champaign<br>
ph : <a href="tel:%2B1%20217%20778%207538" value="+12177787538" target="_blank">+1 217 778 7538</a><br>
<a href="http://lndvl.mechse.illinois.edu/" target="_blank">http://lndvl.mechse.illinois.edu/</a>
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</blockquote></div><br><br clear="all"><br>-- <br>Ravi Kumar T R<br><br>University of Illinois at Urbana-Champaign<br>ph : +1 217 778 7538<br><a href="http://lndvl.mechse.illinois.edu/">http://lndvl.mechse.illinois.edu/</a>
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