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<p class="MsoNormal">Dear Nek users,</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I ran into a problem when restarting using the .rea file. In the .rea file, I specified the name of the file (the file was renamed from the last time step of the previous simuiatlion)to restart with:</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> ***** NO THERMAL BOUNDARY CONDITIONS *****<o:p></o:p></p>
<p class="MsoNormal"> 1 PRESOLVE/RESTART OPTIONS *****<o:p></o:p></p>
<p class="MsoNormal">restart.fld<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Without changing the time step size, I restarted the simulation, but I received an error:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Step 581, time= 3.0955000E+02, DT= 5.0000000E-02, C= 4.240 4.3486E+01 1.1724E-01<o:p></o:p></p>
<p class="MsoNormal"> Solving for fluid<o:p></o:p></p>
<p class="MsoNormal"> 581 Hmholtz VELX 12 1.5661E-12 7.4073E-01 5.0000E-12<o:p></o:p></p>
<p class="MsoNormal"> 581 Hmholtz VELY 11 9.6329E-13 3.3660E+00 5.0000E-12<o:p></o:p></p>
<p class="MsoNormal"> 581 Project PRES 5.5975E-05 1.6744E+00 2.9913E+04 13 20<o:p></o:p></p>
<p class="MsoNormal"> 581 U-PRES gmres 120 6.1973E-10 1.8658E-06 5.0000E-12 4.3239E-02 1.0688E-01<o:p></o:p></p>
<p class="MsoNormal"> 581 Fluid done 3.0955E+02 1.1453E-01<o:p></o:p></p>
<p class="MsoNormal"> 581 3.09550E+02 6.46747E+01 0.00000E+00 7.53982E+02 blasius: delta*<o:p></o:p></p>
<p class="MsoNormal">CFL, Ctarg! 7.39542251238818 0.500000000000000<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The original CFL was only 0.028 or so, after restart, it fluctuates significantly and eventually it quits for CFL being too large. Could anyone help me on this please?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Many thanks <o:p></o:p></p>
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