We’re putting the final touches on our new badges platform. Badge issuance remains temporarily paused, but all completions are being recorded and will be fulfilled once the platform is live. Thank you for your patience.
General

General

Why does the adjoint solver fail with a nan-residual?

    • FAQFAQ
      Participant

      If the following adjoint solver residuals are shown: Computing the adjoint for observable myObservable Iter Adjoint-continuity Adjoint-xMom Adjoint-yMom Adjoint-zMom Adjoint-Flowrate Adjoint-energy 1 -nan 0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 Invalid arithmetic operations – exiting. ! Adjoint solution is converged then you have probably applied non-constant material properties. Only the density can be defined as either a constant or a compressible ideal gas. All other fluid properties should be defined as constant.