Results 71 to 80 of about 1,719 (170)

مدل‌سازی عددی جریان به روش ISPH در مسائل شکست سد، جریان از روی سرریز و عملکرد همزمان دریچه و سرریز [PDF]

هیدرولیک, 2012
مدل‌سازی جریان‌های سطح آزاد با استفاده از نسل جدید روش‌های عددی موسوم به روش‌های بدون المان و به طور خاص روش هیدرودینامیک ذرات هموار1 (SPH) یکی از مسائل مورد توجه در حال حاضر است.
زهرا قدم پور, ناصر طالب بیدختی, سید محمدرضا هاشمی, امیر حسین نیک سرشت   +3 more
doaj   +1 more source

Semi‐implicit Lagrangian Voronoi approximation for the incompressible Navier–Stokes equations

International Journal for Numerical Methods in Fluids, Volume 97, Issue 1, Page 88-115, January 2025.
We introduce semi‐implicit Lagrangian Voronoi approximation (SILVA), a novel numerical method for the solution of the incompressible Euler and Navier–Stokes equations, which combines semi‐implicit time marching with time‐dependent Voronoi tessellations with topology changes.
Ondřej Kincl, Ilya Peshkov, Walter Boscheri   +2 more
wiley   +1 more source

Learning Correlations Between Computational Scale and Performance for Accurate Numerical Modeling: Application Case of Dam‐Break Flood Processes

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
Scientists aim to accurately simulate and characterize complex natural phenomena, thus revealing the underlying natural laws or physical mechanisms governing these phenomena. Conventional physical experiments require significant time and cost, and numerical methods offer an alternative solution. However, modeling complex phenomena such as fluid flow in
Xiaoyu Qi, Gang Mei, Mimi Luo, Nengxiong Xu, H. Naderpour   +4 more
wiley   +1 more source

Hybrid incompressible SPH–machine learning approach for simulating natural convection in a porous intricate domain

Case Studies in Thermal Engineering
This study explores the double-diffusive convection of nano-enhanced phase change material (NEPCM) inside a intricate-shaped cavity partially filled with porous media, integrating Incompressible Smoothed Particle Hydrodynamics (ISPH) with an Artificial ...
Noura Alsedais, Abdelraheem M. Aly
doaj   +1 more source

Capabilities and limitations of smoothed particle hydrodynamics for the simulation of two‐phase flow instabilities

Proceedings in Applied Mathematics and Mechanics, Volume 24, Issue 4, December 2024.
Abstract Smoothed particle hydrodynamics (SPH) is a mesh‐free, Lagrangian particle‐based method that is able to simulate multiphase flows in an economical manner. However, its ability to capture the flow regimes and regime transitions in two phase (liquid‐gas) internal flows, such as pipe or channel flows is not yet generally established.
Rishindra Vallem, Marten Klein, Heiko Schmidt   +2 more
wiley   +1 more source

Double-diffusive natural convection in an enclosure filled with nanofluid using ISPH method

Alexandria Engineering Journal, 2016
The double-diffusive natural convection in an enclosure filled with nanofluid is studied using ISPH method. The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis.
Abdelraheem M. Aly, Zehba A.S. Raizah
doaj   +1 more source

Uncoupled thermoelasticity problem for a finite rectangular composite

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 104, Issue 12, December 2024.
Abstract The stretching of a composite specimen taking into account temperature influence is modelled in terms of tensile stress applied at the opposite boundaries of the elastic rectangular domain. Two other boundaries are supposed to be fixed, it allows to formulate the stated problem as a boundary value problem.
Huang Sheng, Natalya Vaysfeld, Zinaida Zhuravlova   +2 more
wiley   +1 more source

Numerical Simulation of Violent Wave Impact by ISPH Method

Procedia Engineering, 2015
AbstractSmoothed particle hydrodynamics (SPH) is an attractive method for simulating unsteady flows with free-surfaces due to its Lagrangian form. Free-surface tracking or capturing is not required and hence arbitrarily complex free-surface deformations can be handled automatically.
Niu, Kang-Ning, Zheng, Xing, Miao, Ye, Lv, Xi-Peng   +3 more
openaire   +1 more source

A smoothed particle hydrodynamics solver for hydroelastic interactions between fluid and structure [PDF]

AIP Advances
There is still a lack of accurate and stable numerical solvers for Fluid–Structure Interaction (FSI) problems involving violent fluid flows and large deformations of structures.
Takafumi Gotoh, Abbas Khayyer, Dongfang Liang, Hitoshi Gotoh   +3 more
doaj   +1 more source

The reverse genetic as a potential of virus‐induced gene silencing in tomato biology

Food Frontiers, Volume 5, Issue 6, Page 2498-2514, November 2024.
Abstract In the realm of plant genomics, virus‐induced gene silencing (VIGS) technology emerges as a potent tool, employing a reverse genetic strategy to elucidate plant gene functions. Recognized for its simplicity, cost‐effectiveness, and broad applicability, VIGS facilitates the exploration of novel genes in vegetable crops and unveils mechanisms ...
Qiong Tang, Sishan Wei, Zexun Chen, Xiaodong Zheng, Pengcheng Tu, Fei Tao   +5 more
wiley   +1 more source