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• Fluent FAQ
  ...ons are too large and the change in the results is too large as well (high residuals)� ... The solution for the flow dosn't has to be completely convergent, but the residuals should be on the way down.
  39 KB (6,386 words) - 16:48, 26 April 2013
• Best practice guidelines for turbomachinery CFD
  ...t trailing edges. This is often first seen as periodical variations of the residuals. If the unsteady tendencies are judged to not affect the overall simulation ...plot the convergence of a few global parameters before you decide what the residuals should be for a solution to converge. Note also that many manuals for gener
  41 KB (6,252 words) - 08:46, 4 March 2023
• Ansys FAQ
  ...uickly but as the mesh is refined the simulation fails to achieve the same residuals convergence. Frequently the cause for this behavior is by the coarse mesh n <LI>View the MAX-residuals in the solver manager and compare them to the RMS-residuals. If they are about 2 magnitudes higher it is likely to be a local phenomeno
  27 KB (4,461 words) - 02:03, 18 August 2018
• Iterative methods
  ...ly, constants '''B''' and '''c''' are computed by taking inner products of residuals or other vectors arising from the iterative method. <br>
  2 KB (262 words) - 14:17, 19 December 2008
• Geometric multigrid - FAS
  ...ing. Residuals for the coarse grid cell are obtained simply by summing the residuals in the embedded fine grid cells.
  2 KB (297 words) - 09:19, 6 February 2012
• CHAM FAQ
  ...trongly implicit solver, but the option exists to use a Conjugate Gradient Residuals solver for each equation. ... can be assumed that convergence has been achieved, even if the sum of the residuals has not fallen below the cut-off.
  37 KB (5,717 words) - 12:46, 9 December 2019
• PHOENICS
  ...trongly implicit solver, but the option exists to use a Conjugate Gradient Residuals solver for each equation. ... can be assumed that convergence has been achieved, even if the sum of the residuals has not fallen below the cut-off.
  11 KB (1,641 words) - 11:18, 5 July 2013
• CONVERGE FAQ
  ===Where do I see residuals in CONVERGE?=== ... looking at how much better the simulation is than where it started (i.e., residuals). Further, CONVERGE’s variable time-step approach is fundamentally differ
  85 KB (13,492 words) - 15:51, 10 August 2020