Numerical analysis of the spherical surface piezoelectricity ceramics extracorporeal shock wave lithotripsy launch
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Abstract:
We calculate a few numerical solutions of the focusing question related to different flare angle spherical surface piezoelectric ceramics ESWL shockwaves. To do so, we first calculate the actual dynamic focus of spherical surface shock waves near the center of a sphere launched by the spherical surface piezoelectricity ceramics (ESWL) by using a discrete form of the ChisnellChesterWhitham(CCW) beam method. The numerical results show a focusing characteristic of the shock waves near the spherical surface piezoelectricity ceramics EWSL's geometric center, namely near the center of a sphere. The actual dynamic focus is not the center of the sphere but was somewhat offset. The focusing energy and the pressure ratio in the axis increase as the angles increase.
