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

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

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

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.

本文言語英語
ホスト出版物のタイトルRock Dynamics Summit - Proceedings of the 2019 Rock Dynamics Summit, RDS 2019
編集者Omer Aydan, Takashi Ito, Takafumi Seiki, Katsumi Kamemura, Naoki Iwata
出版社CRC Press/Balkema
ページ299-305
ページ数7
ISBN(印刷版)9780367347833
DOI
出版ステータス出版済み - 2019
イベントRock Dynamics Summit, RDS 2019 - Okinawa, 日本
継続期間: 5 7 20195 11 2019

出版物シリーズ

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

会議

会議Rock Dynamics Summit, RDS 2019
国/地域日本
CityOkinawa
Period5/7/195/11/19

All Science Journal Classification (ASJC) codes

  • 地質学

フィンガープリント

「Bingham flow model by fully implicit sph and its application treinforce underground caves」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル