<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Howdy all,<div><br></div><div>I'm currently doing some basic (2D, cartesian) Nusselt vs Rayleigh number comparisons with Aspect, and I have a few questions about the heat flux output along the boundaries.</div><div><br></div><div>For example, here is the output from one time step:</div><div><div><font class="Apple-style-span" color="#ff2016" size="2">*** Timestep 32281: t=9.33978e+07 years</font></div><div><font class="Apple-style-span" color="#ff2016" size="2"> Solving temperature system... 1 iterations.</font></div><div><font class="Apple-style-span" color="#ff2016" size="2"> Rebuilding Stokes preconditioner...</font></div><div><font class="Apple-style-span" color="#ff2016" size="2"> Solving Stokes system... 3 iterations.</font></div><div><font class="Apple-style-span" color="#ff2016" size="2"><br></font></div><div><font class="Apple-style-span" color="#ff2016" size="2"> Postprocessing:</font></div><div><font class="Apple-style-span" color="#ff2016" size="2"> RMS, max velocity: 1.34 m/year, 2.72 m/year</font></div><div><font class="Apple-style-span" color="#ff2016" size="2"> Temperature min/avg/max: 0 K, 490.1 K, 1000 K</font></div><div><font class="Apple-style-span" color="#ff2016" size="2"> Heat fluxes through boundary parts: -583.7 W, 643.2 W, -1.076e+05 W, 1.037e+05 W</font></div><div><font class="Apple-style-span" color="#ff2016" size="2"> Advecting particles... done. </font></div></div><div><br></div><div>Above, the heat flux through the boundary parts is listed in terms of Watts (I assume "W" is for watts). Are these values in fact the heat flux values integrated over the length of each boundary? </div><div><br></div><div>Dividing by the length of the top boundary (1.e6 meters) gave reasonable values for the heat flux in terms of Rayleigh-Nusselt number scaling relationships, but I wanted to check and make sure the "heat flux" values listed above are indeed in Watts and represent the integrated heat flux over each boundary. I confess I wasn't able to tell in heat_flux_statistics.cc if an integration was being done over the boundaries.</div><div><br></div><div>Thanks in advance for the clarification.</div><div><br></div><div><div>
<div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div>Cheers,</div><div>John</div><div><br></div><div>John Naliboff</div><div>Postdoctoral Scholar</div><div>Geology Department</div><div>University of California, Davis</div><div>Earth and Physical Sciences Bldg., Rm. 2119</div><div>Davis, CA 95616</div></span><br class="Apple-interchange-newline"></span><br class="Apple-interchange-newline"></div>
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