کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5763666 1625609 2017 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Coupled incompressible Smoothed Particle Hydrodynamics model for continuum-based modelling sediment transport
ترجمه فارسی عنوان
مدل هیدرودینامیک ذرات خرد شده ناپایدار هموار شده برای حمل و نقل رسوب مدل سازی پیوسته
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی
A coupled solenoidal Incompressible Smoothed Particle Hydrodynamics (ISPH) model is presented for simulation of sediment displacement in erodible bed. The coupled framework consists of two separate incompressible modules: (a) granular module, (b) fluid module. The granular module considers a friction based rheology model to calculate deviatoric stress components from pressure. The module is validated for Bagnold flow profile and two standardized test cases of sediment avalanching. The fluid module resolves fluid flow inside and outside porous domain. An interaction force pair containing fluid pressure, viscous term and drag force acts as a bridge between two different flow modules. The coupled model is validated against three dambreak flow cases with different initial conditions of movable bed. The simulated results are in good agreement with experimental data. A demonstrative case considering effect of granular column failure under full/partial submergence highlights the capability of the coupled model for application in generalized scenario.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Water Resources - Volume 102, April 2017, Pages 84-98
نویسندگان
, ,