Sometimes I use the “field” to track where material goes with the default “solver parameter”, but the output show the “<0 or >1 composition”.
Postprocessing: Writing graphical output: mesh-box2/solution/solution-00009 RMS, max velocity: 2.97e-05 m/year, 0.000318 m/year Compositions min/max/mass: -0.08593/1.201/1.034e+10 // -0.0586/1.059/2.422e+11
In some model, the compositions max could up to 4;
Does this mean that: the computational results use field in this model is wrong? but why the output don’t show the wrong information and cancel the task? Should I use particles-in-cell to track the material instead?