Cross-Validated Numerical Predictions of Electromagnetic Stress Asymmetry in Asymmetric Resonant Cavities

This work presents a cross-validated numerical investigation of electromagnetic stress asymmetry in asymmetric resonant cavity systems. Using reduced-order finite-difference time-domain (FDTD) and finite-element-inspired (FEM) computational approaches, the study evaluates field-energy distributions, asymmetry parameters, convergence behavior, and effective force scaling under resonant conditions. Multiple validation layers are included, including mesh-convergence testing, cross-method comparison, residual analysis, and control configurations. The results demonstrate consistent asymmetry-dependent scaling across independent computational approaches, with bounded residuals and no systematic bias across parameter sweeps. The analysis defines a dimensionless asymmetry parameter and establishes an approximately linear scaling relation of the form F ≈ kA, linking geometric asymmetry to predicted force response. Additional results confirm expected physical dependencies, including linear scaling with input power, suppression under symmetric configurations, and strong resonance dependence. While based on reduced-order numerical models, these results provide a reproducible and quantitatively constrained computational benchmark. The study defines explicit, falsifiable predictions and directly informs experimental validation efforts, including parameter regimes, expected scaling behavior, and control conditions required to test or constrain potential electromagnetic stress effects in asymmetric cavity systems.