Bingham flow model by fully implicit sph and its application treinforce underground caves

D. S. Morikawa, M. Asai, Y. Imoto, M. Isshiki

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

Abstract

The present work shows the application of the Smoothed Particle Hydrodynamics (SPH) on non-Newtonian fluids for simulating the injection of a cementitious material into underground caves to reinforce the soil. In special, it presents two main improvements over the already established SPH formulation: an implicit time integration scheme to overcome the problem of impracticable small time step restriction in highly viscous fluid simulation, and the introduction of air ghost particles (AGP) to fix problems on the free-surface treatment. This project utilizes the Incompressible SPH (ISPH) as a basis for the implementation of such improvements, which guarantees a stable and accurate pressure distribution. We validate the proposed implicit time integration scheme with pipe flow simulations and the free-surface treatment with a simple hydrostatic problem. Also, dam break numerical simulations using the proposed method resulted in very good agreement with experimental data. At last, we demonstrate the potential of this method with the highly viscous vertical jet flow over a horizontal plate validation test, which shows a complex viscous coiling behavior.

Original languageEnglish
Title of host publicationRock Dynamics Summit - Proceedings of the 2019 Rock Dynamics Summit, RDS 2019
EditorsOmer Aydan, Takashi Ito, Takafumi Seiki, Katsumi Kamemura, Naoki Iwata
PublisherCRC Press/Balkema
Pages299-305
Number of pages7
ISBN (Print)9780367347833
DOIs
Publication statusPublished - 2019
EventRock Dynamics Summit, RDS 2019 - Okinawa, Japan
Duration: May 7 2019May 11 2019

Publication series

NameRock Dynamics Summit - Proceedings of the 2019 Rock Dynamics Summit, RDS 2019

Conference

ConferenceRock Dynamics Summit, RDS 2019
CountryJapan
CityOkinawa
Period5/7/195/11/19

All Science Journal Classification (ASJC) codes

  • Geology

Fingerprint Dive into the research topics of 'Bingham flow model by fully implicit sph and its application treinforce underground caves'. Together they form a unique fingerprint.

Cite this