Physical Reasoning of Double- to Single-Loop Transition in Industrial Reactors using Computational Fluid Dynamics
نویسندگان
چکیده
Double- to single-loop pattern transition and a significant reduction in the power number with decrease clearance of Rushton turbine impeller baffled reactor was elucidated earlier research works. The present work investigates physical reasons behind these phenomena using computational fluid dynamics approach. Reynolds Averaged Navier–Stokes equations standard turbulence model closure were used turbulent flow conditions vessels. Multiple Reference Frame (MRF) approach adopted baffle interactions implicit Volume Fluid (VOF) method employed simulate aeration process configurations considered. development low pressure region below vessel deflects discharge streams downward, leading formation pattern. downward movement reduces vortex activity blades, weaker form drag impeller. Similarly, high provides above which impeller, resulting considerable increase air entrainment due superior near free liquid surface. found provide bulk mixing as overall dissipation rate is 35% more than that associated
منابع مشابه
Modeling of Diffusion Propagation due to Ignition of Karaj Oil Depot using Computational Fluid Dynamics Method
Background and Aim: This study investigates the distribution of pollutants from the oil storage ignition scenario using Ensys Fluint software has studied and for the first time in the country the dangerous and unexpected scenarios of explosion and ignition in oil sites using advanced Fluent and monitoring software and aims to preserve the life and financial assets of the areas around the oil de...
متن کاملInvestigation on thermal behavior of common types of roofs in buildings using computational fluid dynamics method
In this study, the influence of type and structure of different roofing systems were investigated using computational fluid dynamic method. The considered roofing systems include beam and block types (clay brick, light weight concrete block, polystyrene) and Uboot slab which were designed for 6m and 8m span. To simulate the fluid flow and heat transfer, the computational fluid dynamic method wa...
متن کاملInvestigation of handmade ferrofluids' motion in a ventilated cavity using computational fluid dynamics
In this research, some more applicable ferrofluids are produced and their mechanical specifications are measured, experimentally. Also, their treatments in the ventilated cavity geometry are assessed numerically. The magnetite nanoparticles are produced by a chemical combination of Fe2+ and Fe3+ with NH3. In order to solve the nanoparticles in the new mediums, a...
متن کاملInvestigation of handmade ferrofluids' motion in a ventilated cavity using computational fluid dynamics
In this research, some more applicable ferrofluids are produced and their mechanical specifications are measured, experimentally. Also, their treatments in the ventilated cavity geometry are assessed numerically. The magnetite nanoparticles are produced by a chemical combination of Fe2+ and Fe3+ with NH3. In order to solve the nanoparticles in the new mediums, a...
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 Applied Fluid Mechanics
سال: 2022
ISSN: ['1735-3572', '1735-3645']
DOI: https://doi.org/10.47176/jafm.15.05.1190