توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Studying Droplet Impact on a Solid Surface Using Particle LevelSet Method
اطلاعات انتشار: دوازدهمین کنفرانس دینامیک شاره ها، سال
تعداد صفحات: ۹
In this study a particle level set method is developed to model droplet impact on a flat surface .The main advantage of this simulation over previous published results is that the effect of the second phase (air) is included and the contact angle is modeled at the contact point of solid, liquid and gas without changing the level set function near this point. The recoiling velocity is computed for different initial impact velocities. Comparison of numerical simulation with available experimental data and also other simulations reveals the accuracy of the method used in this paper.<\div>

۲Parametric study on the stability of a liquid jet using VOF method
اطلاعات انتشار: هشتمین همایش انجمن هوافضای ایران، سال
تعداد صفحات: ۶
The object of the study is to investigate the behavior of liquid jet which is discharged in to air. This problem has great importance in aerospace engineering especially in lubrication of the airplane engines such as bearing box lubrication. The main adventage of this study is consideration of the second phase of the flow which is air in this study. The problem is numerically simulated by using volume of fluid (VOF) method which is based on conservation of each fluid in the domain. Surface tension effect is also considered by including surface tension as a volumetric force in Navier–stokes equations. Because our numerical simulation is unsteady, Navier–Stokes equation is solved by explicit projection method. Both Navier–Stokes equation and interface tracking equation are solved in each time step. The simulation is performed for different inlet velocities, also the effect of jet diameter is studied. Critical velocities are found for different inlet diameters which beyond these values the effect of gravity is negligible. Also it is found that by reducing the diameter of the liquid jet this critical velocity also reduced respectively. In order to verify the code used for the numerical simulation, dam break problem is simulated and numerical results are compared with available experimental data. Comparison of the numerical results with available experimental data reveals the accuracy of the method.<\div>

۳Coupling DPD with FEM to solve micro scale fluid structure interaction
اطلاعات انتشار: بیستمین کنفرانس سالانه مهندسی مکانیک، سال
تعداد صفحات: ۴
We present a new method for coupling the dissipative particle dynamics with the finite element method to investigate fluid structure interaction problems at micro and nano scales. We use this method to solve the micro scale beam in the fluid media. Result of the numerical simulation shows the ability of this method<\div>
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