نتایج جستجو برای: vof model

تعداد نتایج: 2104825  

Journal: :International Journal of Heat and Mass Transfer 2021

The paper describes a coupling of the geometric Volume-of-Fluid (VOF) method with sharp-interface phase-change model for Cartesian and axisymmetric grids. Both interfacial position temperature field are resolved subgrid accuracy. Species transport implicit diffusion is considered in gas phase. numerical implementation developed here described detail, as well its incompressible Navier-Stokes sol...

2000
Jie Li

Two-fluid dynamics is a challenging subject, rich both in physics and in practical applications, which range from manufacturing to lubricated transport. Mechanisms unique to a flow can be exploited to enhance functionality in applications. For example, density-matching can be used to depress the effect of gravity, or of centripetal acceleration in rotating systems, making it possible to manipul...

ژورنال: :دانش آب و خاک 2010
پیمان ورجاوند داود فرسادی زاده علی حسین زاده دلیر علی اشرف صدرالدینی

سرریزها سازههایی هستند که برای تخلیه سیلاب از مخزن سد در مواقع اضطراری استفاده میشوند. یکی از رایجترینو در عین حال پیچیدهترین این سازهها، سرریز جانبی میباشد. در تحقیق حاضر، هیدرولیک جریان در مدل فیزیکیسازه کنترل سیلاب سد ونیار واقع در استان آذربایجان شرقی که شامل سرریز جانبی، کانال جمعآوری، تبدیل، سرریزشبیهسازی گردید و نتایج شامل عمق fluent اوجی و تندآب میباشد، به صورت سهبعدی و با استفاده از مد...

Journal: :Water Science & Technology: Water Supply 2022

Abstract In this research, a numerical investigation was carried out on the effect of obstacle presence water flow during dam-break in dry bed. The validity simulations confirmed after comparing results with experimental evidence. Rectangular, trapezoidal and triangle obstacles were simulated numerically to explain flow. Water surface tracking turbulent modeled using Volume Fluid (VOF) method s...

Journal: :Physical review fluids 2022

A volume-of-fluid (VOF) based numerical study on the spin-affected droplet separation of off-center collisions is presented. The roles orbital angular momentum ${L}_{o}$ and spin ${L}_{s}$ in affecting are illustrated by changing chirality spin, showing that an augmented total can promote stretching suppress reflexive separation. unified theoretical model conservation laws proposed to qualitati...

2012
David K. Jones David Kenneth Jones

In this paper we investigate the process of embankment wave overtopping combinedwith overflow due to extreme surge levels that are above the embankment crest. AReynolds Averaged Navier-Stokes (RANS-VOF) model is employed to simulate thehydrodynamics. To investigate the success of the model at reproducing thehydrodynamic processes, the model is compared with experimental laborato...

Journal: :Partial differential equations in applied mathematics 2022

Heat & fluid flow conservation equations of carburant liquid droplet are solved by a semi-implicit method the Volume Of Fluid ( VOF ) scheme. A new technique radius regression estimation based on Piece-wise Linear Interface Calculation PLIC is developed. Numerical computation performed for stagnant droplets in evaporation natural convection (which takes into consideration buoyancy forces) and a...

Journal: :Symmetry 2021

Gene regulatory networks (GRN) are one of the etiologies associated with cancer. Their dysregulation can be cancer formation and asymmetric cellular functions in stem cells, leading to disease persistence resistance treatment. Systems that model complex dynamics these along adapting partially known real omics data closer reality may useful understand mechanisms underlying neoplastic phenomena. ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - پژوهشکده علوم انسانی و اجتماعی 1391

abstract the present study was conducted to investigate the effect of using model essays on the development of writing proficiency of iranian pre-intermediate efl learners. to fulfill the purpose of the study, 55 pre- intermediate learners of parsa language institute were chosen by means of administering proficiency test. based on the results of the pretest, two matched groups, one as the expe...

Journal: :Journal of Computational Physics 2021

We present a novel interface-capturing scheme, THINC-scaling, to unify the VOF (volume of fluid) and level set methods, which have been developed as two different approaches widely used in various applications. The key success is maintain high-quality THINC reconstruction function using field accurately retrieve geometrical information fulfill numerical conservativeness. interface well defined ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید