ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
A non-triangulation inserting particle method is presented to prevent numerical fractures ofSPH computations. The particles in those regions in which numerical fractures may occur are chosenat the beginning of SPH computations. And, the chosen particles are arrayed by the two different rulesrespectively according to the particle position relations. When the distance between each two chosenconnected particles exceeds a certain value and neither of the corresponding two particles hasfractured in SPH computations, a new particle is generated between those two ones and the positionrelation of particles is updated. The physical quantities that the new particle carries are obtainedaccording to some given rules. The method and the same type of method in the reference arecompared. The application of the method is analyzed. Conservation of mass and Conservation ofmomentum of the whole system are kept in this method. Several examples are given to validate theefficiency of the method to prevent numerical fractures
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.845.pdf
