Explicit predictor–corrector method for nonlinear acoustic waves excited by a moving wave emitting boundary
نویسندگان
چکیده
We present an explicit finite difference time domain method to solve the lossless Westervelt equation for a moving wave emitting boundary in one dimension and spherical symmetry. The approach is based on coordinate transformation between physical fixed computational domain. This allows simulate combined effects of profile distortion due constitutive nonlinearity medium nonlinear Doppler modulation pressure acceleration boundary. A predictor-corrector employed enhance numerical stability presence shocks grid motion. It demonstrated that can accurately predict shift amplitude caused by oscillating motion novelty presented methodology lies its capability reflect rate shock attenuation acoustic waves emitted from accelerating
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ژورنال
عنوان ژورنال: Journal of Sound and Vibration
سال: 2022
ISSN: ['1095-8568', '0022-460X']
DOI: https://doi.org/10.1016/j.jsv.2022.116814