1993/03/01 by Y.K. Shin, Young-Kil Shin, W. Lord · 1 citation
Engineering · Materials Science · Mathematics · #Acoustics #Algorithm #Computer science #Electromagnetic Simulation and Numerical Methods #Magnetic Properties and Applications #Materials science #Mathematical analysis #Mathematics #Matrix (chemical analysis) #Mechanics #Non-Destructive Testing Techniques #Physics #Term (time) #Transient (computer programming) #Upwind scheme
paper · doi:10.1109/20.250770
openalex publication_date 1993/03/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
In view of the complex geometries involved in nondestructive evaluation (NDE) applications, a transient analysis for moving probe effects is performed. The time-step method used successfully reproduces the steady-state upwinding results by introducing a time-dependent artificial reluctivity term. The support plate signal of the variable reluctance probe obtained at the probe velocity of 5 m/s is compared with that of 0 m/s, i.e., the magnetostatic result. Due to the time dependence of the artificial reluctivity term, numerical dissipation is less than that of time stepping with upwinding. The matrix becomes symmetric in this formulation, which has many beneficial aspects compared to the upwinding nonsymmetric matrix.>