<div dir="ltr">One possible solution is to change the block size, number of blocks in each direction, and refinement level to get what you want. For example, you could use 14x12 sized blocks, set nblockx=18, nblocky=1, and lrefine_max=3. Then the maximum number of cells in the x-direction will be 14*18*4=1008, and in the y-direction 12*1*4=48. You can play with those numbers to have more or less cells on level 1. Does something like that work for you?<div class="gmail-yj6qo gmail-ajU" style="outline:none;padding:10px 0px;width:22px;margin:2px 0px 0px"><br class="gmail-Apple-interchange-newline"></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Oct 29, 2019 at 9:23 PM Zhang Daoyuan <<a href="mailto:zdy0903@stu.xjtu.edu.cn">zdy0903@stu.xjtu.edu.cn</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><p>
<span style="font-family:SimSun">Hi all!</span>
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<span style="font-family:SimSun"> I am trying to set different refinement along different direction in 2D simulation. For example, I need 1000 cells in X direction and only 50 cells in Y direction. When I have set the "lrefine_min and lrefine_max" in flash.par, it seems that the total cell number is similar so that there will be about 1000 cells in Y direction. This will largely decrease the computational speed. What should I do to set different refinement along different direction for adaptive mesh refinement?</span>
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<span style="font-family:SimSun"> Thank you very much!</span>
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<span style="font-family:SimSun">Zhang <br>
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</p></blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>Eddie Hansen, PhD<br>Postdoctoral Scholar</div><div>University of Chicago</div><div>607-341-6126 | Flash Center</div></div></div></div></div></div></div></div></div>