نتایج جستجو برای: fene model
تعداد نتایج: 2104367 فیلتر نتایج به سال:
since its introduction in 1959, translation quality assessment (tqa) has been among the most addressed research topics in translation studies. during recent years, there has been a crucial increase on the study of tqa. various methods have come on scene. although these methods are based on scientific theories, most of them have remained at the level of theory. juliane house’s model is among tho...
The dynamic behaviours of a filament in viscoelastic uniform flow were investigated by an immersed boundary-lattice Boltzmann method. effects the Reynolds numbers (Re, ranging from 10 to 200) and Weissenberg number (Wi, 0 1.2) on flapping motion drag lift coefficients studied. It was found that higher inertial effect (larger Re) promotes filament. In addition, major viscoelasticity Giesekus flu...
Okul öncesi fen eğitiminde temalı bilgi veren resimli çocuk kitapları, bilimsel bilgilerin kazandırılmasında ve süreç becerilerinin geliştirilmesinde oldukça önemlidir. Ulusal uluslararası alan yazında yapılmış olan araştırmalar okul öğretmenlerinin fene karşı ön yargılı düşük öz-yeterlik inancına sahip olduklarını, kavram bilgilerinin yeterli düzeyde olmadığını göstermektedir. Bu noktada dönem...
We study the flow around a periodic array of cylinders using mesoscopic viscoelastic fluid that mimics polymeric solutions. model our employing novel method based on Smoothed Dissipative Particle Dynamics and FENE springs. characterize static dynamic properties solutions compare results with theoretical predictions Zimm model. After rheological characterization modeled solutions, we simulate co...
We study the existence of global-in-time weak solutions to a coupled microscopicmacroscopic bead-spring model which arises from the kinetic theory of dilute solutions of polymeric liquids with noninteracting polymer chains. The model consists of the unsteady incompressible Navier–Stokes equations in a bounded domain Ω ⊂ Rd, d = 2 or 3, for the velocity and the pressure of the fluid, with an ela...
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
Direct numerical simulations are carried out to study the effect of finite Weissenberg number up $Wi=16$ on laminar and turbulent channel flows an elastoviscoplastic (EVP) fluid, at a fixed bulk Reynolds $2800$ . The incompressible flow equations coupled with evolution equation for EVP stress tensor by modified Saramito model that extends both Bingham viscoplastic extensible nonlinear elastic-P...
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