A new discontinuous model for three dimensional analysis of fluid-solid interaction behavior

H. Zhang, Guangqi Chen, L. Zheng, Y. Zhang, Y. Q. Wu, Z. Han, F. S. Fan, P. D. Jing, W. Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

The analysis of interaction behavior between fluid and solid is a topic interested to many researchers due to its wide application in engineering. A new discontinuous model coupling the methods of 3D Discontinuous Deformation Analysis (DDA) and 3D Smoothed Particle Hydrodynamics (SPH) is presented for three dimensional analysis of fluid-solid interaction behavior. The motions of solid element (termed block) are analyzed with 3D DDA method while the motions of the fluid element (termed particle) are simulated using 3D SPH method. The contact type between the particles and the blocks is treated as vertex-to-face contact, thus the impact of fluid is applied as point loading on the blocks which is referred to as "penalty-force" method. A method of particle-block contact detection is developed aiming to judge the entrance facet and maintain the interaction with the identical facet during the process of contact interaction to satisfy the criterion that the blocks should be prevent form penetrating by the particles and push them back directly in the case of high velocity impact. A quick sort and search algorithm of particles in the vicinity of the blocks combined with the method of bounding box is introduced for efficient particle-block contact detection. The coupled SPH-DDA provides a promising computational tool to simulate a variety of fluid-solid interaction problems in many potential applications in hydraulic engineering, coastal and offshore engineering, geomechanical engineering, etc.

Original languageEnglish
Title of host publicationGeomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014
PublisherTaylor and Francis - Balkema
Pages503-508
Number of pages6
ISBN (Print)9781138027077
Publication statusPublished - Jan 1 2015
EventInternational Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014 - Cambridge, United Kingdom
Duration: Sep 1 2014Sep 3 2014

Publication series

NameGeomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014
Volume1

Other

OtherInternational Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014
CountryUnited Kingdom
CityCambridge
Period9/1/149/3/14

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Geophysics

Cite this

Zhang, H., Chen, G., Zheng, L., Zhang, Y., Wu, Y. Q., Han, Z., ... Wang, W. (2015). A new discontinuous model for three dimensional analysis of fluid-solid interaction behavior. In Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014 (pp. 503-508). (Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014; Vol. 1). Taylor and Francis - Balkema.