Title :
Numerical Simulation of Electro-Hydraulic EWSL with Single-Pulse and Dual-Pulse
Author :
Zhang, Xiaoyan ; Chen, Jingqiu ; Zhang, Yongxiang ; Chunxia Wei
Author_Institution :
Dept. of Eng. Mech., Chongqing Univ., Chongqing, China
Abstract :
The pressure field and the compare of the single-pulse and dual-pulse inside an electro-hydraulic Dornier HM3 lithotripter were studied. The 2D axisymmetric Euler equations, based on the unstructured grid CE / SE numerical scheme, were used. At the same time, water was used as the pressure transmission medium and the shock wave focusing process were simplified the process of water in the corresponding homogeneous process. The pressure field and the comparison of single-pulse and dual-pulse pressure near the focus was simulated successfully. A high negative pressure was occurred after a positive pressure and the pressure generated by dual-pulse was at least two times by single-pulse near of the focus. The simulation results for the design of ESWL (Extracorporeal Shock Wave Lithotripsy) lithotripter and clinical application provide a reliable basis.
Keywords :
diseases; finite element analysis; kidney; patient treatment; shock waves; sparks; 2D axisymmetric Euler equations; ESWL lithotripter design; conservation element-solution element numerical scheme; dual pulse electrohydraulic EWSL; electrohydraulic Dornier HM3 lithotripter; extracorporeal shock wave lithotripsy; numerical simulation; pressure field; pressure transmission medium; shock wave focusing process; single pulse electrohydraulic EWSL; unstructured grid CE-SE numerical scheme; Bismuth; Equations; Focusing; Lithotripsy; Mathematical model; Numerical simulation; Shock waves;
Conference_Titel :
Bioinformatics and Biomedical Engineering, (iCBBE) 2011 5th International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-5088-6
DOI :
10.1109/icbbe.2011.5780290
