JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2016, Vol. 46 ›› Issue (1): 22-27.doi: 10.6040/j.issn.1672-3961.0.2015.222

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A bleeding simulation algorithm for skin surface based on improved SPH method

WANG Na1, CHEN Guodong2, CHEN Yi2   

  1. 1. School of Electronics and Information Engineering, Fuqing Branch of Fujian Normal University, Fuqing 350300, Fujian, China;
    2. College of Physics and Information Engineering, Fuzhou University, Fuzhou 350116, Fujian, China
  • Received:2015-07-10 Online:2016-02-20 Published:2015-07-10

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Abstract: Aiming at low dynamic model precision problem of the current blood flow realistic graphics rendering methods, a bleeding simulation algorithm for skin surface based on improved SPH method was proposed. First, some blood flow simulation algorithms were analyzed and the Casson model was selected as the fluid dynamics model of blood flow. Second, according to the characteristics of the dynamic equation of Casson fluid, the traditional SPH method was improved. Third, the improved method was used to calculate the blood flow. Finally, the obtained blood particle kinematics information was used to simulate the flow of the skin surface. The experimental results showed that the improved SPH method could reduce the complexity of the traditional method and improve the accuracy of the program, which would provide a new method for the skin incision bleeding simulation in virtual surgery.

Key words: blood flow, dynamic model, Casson model, virtual surgery, smoothed particle hydrodynamics

CLC Number: 

  • TP391.41
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