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        <span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;">Hi </span>
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        <span style="font-family:SimSun;"><br>
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        <span style="font-family:SimSun;">    Recently I want to build a simulation with Circular</span><span style="font-family:SimSun;"> region Domain size. </span>
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        <span style="font-family:SimSun;">    Because our boundary condition needs to be specified. It is more accurate to define in circular boundary. </span>
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        <span style="font-family:SimSun;">    Is it possible to specify the variate inside of the domain?</span>
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        <span style="font-family:SimSun;">    What's more, is it possible to set non-rectangle cell?</span>
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        <span style="font-family:SimSun;">    </span>
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        <span style="font-family:SimSun;">Thanks!</span>
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