Fluids

Fluids

FLUENT Convergence Problem

    • Stefan_Panajotovic
      Subscriber

      Hi everyone,

      I am trying to model a flow of water through a 30 mm pipe with a lattice structure on its inner side. For now, I am playing around using mass-flow and pressure inlet boundary conditions and looking how solution behaves in both cases.

      First I used following geometry:

    • Keyur Kanade
      Ansys Employee
      It is always better to have inlets or outlets away from the bends, flow obstructions etc. Please increase inlet and outlet length. nAlso please check mesh. It looks like you have some cell jumps. The min orthogonal quality should be above 0.1. nThe residuals are below 1.e-3. nPlease use reports to check convergence instead of residuals. nPlease see help manual for more details about these commands. nRegards,nKeyurnGuidelines for Posting on Ansys Learning ForumnHow to access ANSYS help linksnn
    • Stefan_Panajotovic
      Subscriber
      Hey Keyur,nYour suggestion solved it, thanks a lot! nBesides reporting mass flux, what other report would you suggest me to use in order to check the convergence?nThanks in advance!nStefan n
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