Averaging of an homogeneous two-phase flow model with oscillating external forces

Two Phase Flow Pressure Drop Calculation Using Homogeneous Equilibrium Model

Although two-phase flow is frequently encountered in various location of the process plants, there is no a general accepted and verified two-phase flow model that may be used to size lines for such conditions. An obvious example is condensate water return lines. The API method that used in this study is based on the homogeneous equilibrium flow assumption, that is, equal velocity and equal temp...

Averaging of nonautonomous damped wave equations with singularly oscillating external forces

We consider, for ρ ∈ [0,1] and ε > 0 small, the nonautonomous weakly damped wave equation with a singularly oscillating external force ∂2 t u− u+ γ ∂tu=−f (u)+ g0(t)+ ε−ρg1(t/ε), together with the averaged equation ∂2 t u− u+ γ ∂tu=−f (u)+ g0(t). Under suitable assumptions on the nonlinearity and the external force, we prove the uniform (with respect to ε) boundedness of the attractors Aε in th...

Internal Forces in Piles “Under External Forces and Earthquake in Homogeneous and Nonhomogeneous Media”

Internal Forces in Piles “Under External Forces and Earthquake in Homogeneous and Nonhomogeneous Media”

synthesis of platinum nanostructures in two phase system

چکیده پلاتین، فلزی نجیب، پایدار و گران قیمت با خاصیت کاتالیزوری زیاد است که کاربرد های صنعتی فراوانی دارد. کمپلکس های پلاتین(ii) به عنوان دارو های ضد سرطان شناخته شدند و در شیمی درمانی بیماران سرطانی کاربرد دارند. خاصیت کاتالیزوری و عملکرد گزینشی پلاتین مستقیماً به اندازه و- شکل ماده ی پلاتینی بستگی دارد. بعضی از نانو ذرات فلزی در سطح مشترک مایع- مایع سنتز شده اند، اما نانو ساختار های پلاتین ب...