نتایج جستجو برای: volume of fluid vof method

تعداد نتایج: 21313889  

Journal: :international journal of industrial mathematics 0
j. khorshidi department of mechanical engineering, hormozgan university, bandarabbas, ‎iran‎. t. zarei department of mechanical engineering, hormozgan university, bandarabbas, ‎iran‎. h. davari department of mechanical engineering, hormozgan university, bandarabbas, ‎iran‎.

the purpose of this study is numerical modeling of temperature variation of phases in a two phase regime in fluidized bed dryers including particles belonging to group d of geldart classification. the mass transfer between phases is not taken into consideration in this modeling which has been assumed in three- dimensional, unsteady, and two-phase regime.to verify the modeling we consider the do...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی 1388

در این پایان نامه، به کمک نرم افزار flow-3d میدان جریان عبوری از سریز اوجی بررسی می گردد. همچنین اثر هندسه سرریز و بلندای آب بالا دست سرریز بر میدان جریان و توزیع فشار بررسی شده و تاثیر مدل های مختلف آشفتگی (renormalizd group) rng, k-e, prandtl در میدان جریان نیز مورد توجه بوده است. نرم افزار flow-3d یک برنامه تحلیلی میدان جریان است که معادلات حاکم بر میدان جریان عبوری از روی سرریز که همان معاد...

Journal: :international journal of automotive engineering 0
jafari azadi samadian

the directional response and roll stability characteristics of a partly filled tractor semi-trailer vehicle, with cylindrical tank, are investigated in various maneuvers. the dynamic interaction of liquid cargo with the tractor semi-trailer vehicle is also evaluated by integrating a dynamic slosh model of the partly filled tank with five-degrees-of-freedom of a tractor semi-trailer tank model. ...

Journal: :J. Comput. Physics 2010
Milan Kucharik Rao V. Garimella Samuel P. Schofield Mikhail J. Shashkov

In this paper we compare the performance of different methods for reconstructing interfaces in multi-material compressible flow simulations. The methods compared are a material-order-dependent Volume-of-Fluid (VOF) method, a material-orderindependent VOF method based on power diagram partitioning of cells and the Moment-of-Fluid method (MOF). We demonstrate that the MOF method provides the most...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1388

در این پایان نامه، به کمک نرم افزار flow-3d میدان جریان عبوری از سریز اوجی بررسی می گردد. همچنین اثر هندسه سرریز و بلندای آب بالا دست سرریز بر میدان جریان و توزیع فشار بررسی شده و تاثیر مدل های مختلف آشفتگی (prandtl، و rng (renormalized group) در میدان جریان نیز مورد توجه بوده است. نرم افزار flow-3d یک برنامه تحلیلی میدان جریان است که معادلات حاکم بر میدان جریان عبوری از روی سرریز که همان معادل...

2003
C. W. HIRT

Several methods have been previously used to approximate free boundaries in tinitedifference numerical simulations. A simple, but powerful, method is described that is based on the concept of a fractional volume of fluid (VOF). This method is shown to be more flexible and efftcient than other methods for treating complicated free boundary configurations. To illustrate the method, a description ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه شیمی و مهندسی شیمی ایران - پژوهشکده شیمی تجزیه و معدنی 1390

hydrochlorothiazide (hct) is a diuretic agent which is shown to be effective in the treatment of hypertension. literature reports have demonstrated that urinary excretion data may be used to assess the bioavailability of various formulations containing this thiazide. also hct consumption by the athletes is one of the drugs which should be regulated by world anti-doping agency (wada), because of...

2009
D. L. Sun W. Q. Tao

A coupled volume-of-fluid and level set (VOSET) method, which combines the advantages and overcomes the disadvantages of VOF and LS methods, is presented for computing incompressible two-phase flows. In this method VOF method is used to capture interfaces, which can conserve the mass and overcome the disadvantage of nonconservation of mass in LS method. An iterative geometric operation proposed...

2012
Xinggang Li

Droplet (fluid) -droplet (fluid) interaction: A numerical investigation of binary droplet collisions in a gaseous phase has been conducted as part of the coalescence modeling project. A volume of fluid (VOF) based interface capturing method, which is characterized by introducing an extra artificial compression term into the volume-fraction transport equation, is employed to capture the liquid-g...

2010
Satoshi Xiaobo Gong Kazuyasu Sugiyama Jinbiao Wu Huaxiong Huang Shu Takagi

A novel full Eulerian fluid-elastic membrane coupling method on the fixed Cartesian coordinate mesh is proposed within the framework of the volume-of-fluid approach. The present method is based on a full Eulerian fluid-(bulk) structure coupling solver (Sugiyama et al., J. Comput. Phys., 230 (2011) 596–627), with the bulk structure replaced by elastic membranes. In this study, a closed membrane ...

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