Comparative Electrothermal Analysis of Single and Small-Electrode Grid Configurations for HD-Inspired Peripheral Transcutaneous Neurostimulation: COMSOL Models and Simulation Data

This repository contains the COMSOL Multiphysics 6.3 finite-element model files and raw parameter-sweep simulation outputs used to generate the results reported in the manuscript "Comparative Electrothermal Analysis of Single and Small-Electrode Grid Configurations for HD-Inspired Peripheral Transcutaneous Neurostimulation" (submitted to Frontiers in Bioengineering and Biotechnology, Manuscript ID 1904885).

The dataset compares a conventional single-electrode reference configuration against a series of HD-inspired small-electrode grid configurations (grid1 through grid16), evaluating current-density distribution and electrothermal (Joule heating) behavior under current-controlled pulsed stimulation, across the complete 128-combination current-amplitude/pulse-width/frequency parameter sweep for all seventeen configurations. In addition to this primary series, the dataset includes: (i) an area-matched control series (electrode radius increased to hold total active area constant while electrode count varies), (ii) a mesh-convergence study across five refinement levels for representative configurations, and (iii) alternative electrode fill-pattern variants used to isolate the effect of spatial arrangement independent of electrode count and total active area.

See the included README.md for a full description of the folder structure and how each file maps to the manuscript's figures and tables.