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<p>Dear all,<br>
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<p>I'm running the flash code radflaHD in 1D with<span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);"> a very st</span><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">eep </span><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">den</span><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">si</span><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">ty
profile. The code is running properly but there are wiggles appearing a<span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">round the steep den</span><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">si</span><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">ty
structure. I have attached the figures which show the initial density profile (density_1d_initial.png) and the density structure at a late epoch (density_1d_later.png) when the wiggles start to appear. The amplitude of these wiggles are increasing with time. </span></span></p>
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<div><span style="font-size: 12pt;">Does anyone know why these wiggles are appearing and </span><span style="font-size: 12pt;">how can</span><span style="font-size: 12pt;"> I get rid of these wiggles? <span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">I</span><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);"> am
using split PPM hydro solver, have uniform resolution all over the simulated region and the </span><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">eosModeInit = "dens_temp".</span></span></div>
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<div><span style="font-size: 12pt;">I would appreciate if someone can help me. </span><br>
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<p>Thanks,<br>
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<p>Esha <br>
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<p><span style="font-size: 10pt;"><span style="font-family: Times, "Times New Roman", serif;"><span style="font-family: Times, "Times New Roman", serif;"><span style="font-family: Times, "Times New Roman", serif;">Department of Astronomy</span></span></span><br style="font-family: Times, "Times New Roman", serif;">
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<p><span style="font-size: 10pt;"><span style="font-family: Times, "Times New Roman", serif;"><span style="font-family: Times, "Times New Roman", serif;"><span style="font-family: Times, "Times New Roman", serif;">The Oskar Klein Centre</span></span></span><br style="font-family: Times, "Times New Roman", serif;">
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<p><span style="font-size: 10pt;"><span style="font-family: Times, "Times New Roman", serif;"><span style="font-family: Times, "Times New Roman", serif;"><span style="font-family: Times, "Times New Roman", serif;">Stockholm University</span></span></span><br style="font-family: Times, "Times New Roman", serif;">
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<p><span style="font-size: 10pt;"><span style="font-family: Times, "Times New Roman", serif;"><span style="font-family: Times, "Times New Roman", serif;"><span style="font-family: Times, "Times New Roman", serif;">10691 Stockholm </span></span></span><br style="font-family: Times, "Times New Roman", serif;">
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<p><span style="font-family: Times, "Times New Roman", serif; font-size: 10pt;"><span style="font-family: Times, "Times New Roman", serif;"><span style="font-family: Times, "Times New Roman", serif;">Sweden</span></span></span><br>
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