Simulation of Internal Flows in Hydraulic Control Valve Using the Boundary Element Method.
نویسندگان
چکیده
منابع مشابه
buckling of viscoelastic composite plates using the finite strip method
در سال های اخیر، تقاضای استفاده از تئوری خطی ویسکوالاستیسیته بیشتر شده است. با افزایش استفاده از کامپوزیت های پیشرفته در صنایع هوایی و همچنین استفاده روزافزون از مواد پلیمری، اهمیت روش های دقیق طراحی و تحلیل چنین ساختارهایی بیشتر شده است. این مواد جدید از خودشان رفتارهای مکانیکی ارائه می دهند که با تئوری های الاستیسیته و ویسکوزیته، نمی توان آن ها را توصیف کرد. این مواد، خواص ویسکوالاستیک دارند....
Simulation of Three-dimensional Internal Flows by the Random Vortex and Boundary Element Methods
A vortex boundary element method is developed for the grid-free simulation of time-dependent , incompressible, viscous ow in three-dimensional conngurations. The numerical scheme is based on a combination of the Lagrangian vortex method to capture the convection and stretch of the vortical eld, the random walk method to describe the diiusion process, and the boundary element method to impose th...
متن کاملA Fast Immersed Boundary Fourier Pseudo-spectral Method for Simulation of the Incompressible Flows
Abstract The present paper is devoted to implementation of the immersed boundary technique into the Fourier pseudo-spectral solution of the vorticity-velocity formulation of the two-dimensional incompressible Navier-Stokes equations. The immersed boundary conditions are implemented via direct modification of the convection and diffusion terms, and therefore, in contrast to some other similar ...
متن کاملNew Developments of the Boundary Element Method with Internal Cells
The Boundary Element Method (BEM) is very rarely used for the simulation of problems in geomechanics even though it can mean a considerable improvement in user-friendliness, efficiency and accuracy compared to currently used domain based methods because only surfaces have to be discretized. The main reason why the BEM is not applied is because currently there are missing efficient and user-frie...
متن کاملSimulation of the hydraulic fracture process in two dimensions using a discrete element method.
We introduce a discrete element simulation for the hydraulic fracture process in a petroleum well which takes into account the elastic behavior of the rock and the Mohr-Coulomb fracture criterium. The rock is modeled as an array of Voronoi polygons joined by elastic beams, which are submitted to tectonical stresses and the hydrostatic pressure of the fracturing fluid. The fluid pressure is trea...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Society of Materials Engineering for Resources of Japan
سال: 1993
ISSN: 1884-6610,0919-9853
DOI: 10.5188/jsmerj.6.2_65