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Warianty tytułu
Numeryczna symulacja pulsacyjnej metody rozbijania kamienia nerkowego – litotrypsji
Języki publikacji
Abstrakty
This research focused on the pressure of the single-pulse and dual-pulse of ESWL (Extracorporeal Shock Wave Lithotripsy). And both results were compared and analyzed. Based on the 2D axisymmetric Euler equations and hybrid grids improved CE / SE numerical scheme, the pressure field was simulated in the case of water is the pressure transmission medium. Using the pressure field of shock wave lithotripsy simulated, single-pulse and dual-pulse pressure values near the focus were compared. A Great negative pressure was occurred after the positive pressure near the focus. Furthermore, dual-pulse pressure was about twice of the single-pulse near the focus. The simulation results provided a reliable numerical simulation result for the design and application of ESWL lithotripter.
Badano możliwości jedno- i dwupulsowej litotrypsji (techniki rozbijania kamienia nerkowego). Przedstawiono model matematyczny w wodzie jako medium przenoszenia ciśnienia.
Słowa kluczowe
Wydawca
Czasopismo
Rocznik
Tom
Strony
48--53
Opis fizyczny
Bibliogr. 16 poz., schem., tab., wykr.
Twórcy
autor
autor
autor
autor
- Chongqing University, Department of Engineering Mechanics, zxyxbb@yahoo.com.cn
Bibliografia
- [1] Brennen C E. Cavitation and Bubble Dynamics. Oxford University Press, New York/ Oxford, 1995
- [2] Chaussy C., Brendel W., Schmiedt E. Extracorporesally induced destruction of kidney stones by shock waves. Lancet, 207(1980), No.2, 1265~1268
- [3] Delius M., Lithotripsy. Ultrasound Med Biol, 26(2000), 55~58
- [4] Delius M., Medical applications and bioeffects of extracorporeal shock waves. Shock Waves, 56(1994), No.4, 55~72
- [5] Tanguay M. Computation of bubbly cavitating flow in shock wave lithotripsy, California: California Insitute of Technology, 1(2004)
- [6] Wolfgang Eisenmenger. The mechanisms of stone fragmentation in ESWL. Ultrasound in Medicine & Biology, 27(2001), No.5, 683~693
- [7] Zhong P, Preminger GM. Mechanisms of differing stone fragility in extracorporeal shock wave lithotripsy. J Endourol, 8(1994), 163~8
- [8] Zhang Yong-Xiang, Chen Jing-Qiu, Deviation of the Factual Focus of Spherical Piezoelectric ESWL from the Spherical Center, Chinese Journal of Biomedical Engineering, 27(2007), No.2, 177~181
- [9] Chen Jing-Qiu, WEI Chun-Xia, Studies on Mechanical Mechanism about Stone C omminution and Tissue Trauma in Extra Corporeal Shock Wave Lithotripsy, Advances in Mechanics, 37(2007), No.4, 590~605
- [10] Zhang Yong-xiang CHEN Jing-qiu, Numerical simulation of 2-D dam-break wave by using conservation element and solution element method, Journal of Hydraulic Engineering, 36(2005), No.10, 1224-1229
- [11] Chen Jing-qiu, Zhang Yong-xiang, Wei Chun-xia, Numerical simulation of propagation diffraction and reflection of 2-D dambreak wave, Journal of Hydraulic Engineering, 36(2005), No.5, 569-574
- [12] Chang S C. The Method of Space-Time Conservation Element and Solution Element - A New Approach for Solving the Navier-Stokes and Euler Equations. Journal of Computational Physics, 119(1995), No.2, 295~324
- [13] Chang Sin-Chung,Wang Xiao-Yen and To Wai-Ming. Application of the Space–Time Conservation Element and Solution Element Method to One-Dimensional Convection–Diffusion Problems. Journal of Computational Physics, 165(2000), No.1, 189-215
- [14] Zhang Zeng-Chan, John Yu S. T. and Chang Sin-Chung. A Space-Time Conservation Element and Solution Element Method for Solving the Two- and Three-Dimensional Unsteady Euler Equations Using Quadrilateral and Hexahedral Meshes, Journal of Computational Physics, 175(2002), No.1, 168-199
- [15]Lim Young-II, Chang Sin-Chung and Jorgensen Sten Bay. A novel partial differential algebraic equation (PDAE) solver: iterative space–time conservation element/solution element (CE/SE) method. Computers & Chemical Engineering, 28(2004), No.8, 1309-1324
- [16] Muller M, Stosswellenfokusierung in Wasser, Dissertation der RWTH Aachen, Germany, 1988
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPOH-0062-0013