Abstract
The present study introduces a new class of unconditionally strong stability preserving (SSP) multi-derivative Runge–Kutta methods for the numerical simulation of reaction–diffusion systems in the stiff regime. The unconditional SSP property of the methods makes them highly efficient for the simulation of reaction–diffusion systems without any restrictive time-step requirements. These methods have been tested for accuracy using L∞ error analysis, and comparisons with existing literature have shown that they perform better even for larger time-steps. In addition, the robustness and efficiency of the derived method are also validated by numerical simulations of the Brusselator, Gray–Scott, and Schnakenberg models.
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