What it demonstrates
Successive refinement can reveal whether a reported quantity is stabilizing and provide evidence about discretization error.
L01 / Interactive laboratory
Mesh convergence explorer
Explore how a numerical observable approaches a limiting value as spatial resolution increases—and why one refined result is not a convergence study.
Educational model
Values are synthetic and dimensionless unless labelled. This laboratory illustrates relationships; it is not a solver, design tool, validation result or client-project output.
What it does not demonstrate
A converged numerical result can still be physically wrong because of model form, boundary conditions, material data or implementation error.
Practical question
Is the change caused by resolution small enough relative to the decision margin—and has relevant physical behaviour also been validated?
Apply the principle to a real requirement