Numerical Simulations of Gas-Liquid Boiling Flows Using OpenFOAM

Direct Numerical Simulations of Gas-Liquid Multiphase Flows

Modeling and Numerical Aspects of Population Balance Equations in gas/liquid-liquid Two Phase Flows

In this paper, we present numerical techniques for one-way coupling of CFD and Population Balance Equations (PBE) based on the incompressible flow solver FeatFlow which is extended with a) Chien’s Low-Reynolds number k − ε turbulence model [4], b) breakage kernel model of Lehr et al. [34, 35], c) coalescence kernel model of Lehr et al. [34]. The presented implementation ensures a strictly conse...

hazard evaluation of gas condensate stabilization and dehydration unit of parsian gas refinery using hazop procedures

شناسایی مخاطرات در واحد 400 پالایشگاه گاز پارسیان. در این پروزه با بکارگیری از تکنیک hazop به شناسا یی مخاطرات ، انحرافات ممکن و در صورت لزوم ارایه راهکارهای مناسب جهت افزایش ایمنی فرا یند پرداخته میگردد. شرایط عملیاتی مخاطره آمیز نظیر فشار و دمای بالا و وجود ترکیبات مختلف سمی و قابل انفجار در واحدهای پالایش گاز، ضرورت توجه به موارد ایمنی در این چنین واحدهایی را مشخص می سازد. مطالعه hazop یک ر...

Numerical Solutions of Population Balance Equations within Liquid/Gas–Liquid Flow Simulations

Numerical solvers based on population balance equations (PBE) coupled with flow equations are a promising approach to simulate liquid/gas–liquid dispersed flows which are very commonly observed in the nature and in industrial processes. Our aim is to discuss the challenges for the numerical solution of the coupled equation systems and to present detailed numerical recipes whose main ingredients...

Liquid and liquid-gas flows at all speeds : Reference solutions and numerical schemes

All speed flows and in particular low Mach number flow algorithms are addressed for the numerical approximation of the Kapila et al. [19] multiphase flow model. This model is valid for fluid mixtures evolving in mechanical equilibrium but out of temperature equilibrium and is efficient for material interfaces computation separating miscible and non-miscible fluids. In this context, the interfac...