Evaluation of Multiphase Approaches and Turbulence Models for Industrial CFD Simulation of Stirred Bubble Column Reactors

  • سال انتشار: 1390
  • محل انتشار: هفتمین کنگره ملی مهندسی شیمی
  • کد COI اختصاصی: ICHEC07_299
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 637
دانلود فایل این مقاله

نویسندگان

s Pahlevani

Computational Fluid Dynamic Laboratory, Chemical Engineering Department, Iran University of Science and Technology, Narmak, Tehran, Iran

s.h Hashemabadi

Computational Fluid Dynamic Laboratory, Chemical Engineering Department, Iran University of Science and Technology, Narmak, Tehran, Iran

چکیده

In this work, stirred bubble column simulation has been performed by computational fluid dynamics (CFD) technique. To this aim, Eulerian multiphase approach and algebraic slip mixture model (ASM) has been considered in terms of large-scale CFD simulations computational time. Simulations have been performed for three cases. The first case is ASM approach with Spalart-Allmaras (S-A) turbulence model, the second is ASM approach withStandard k-ε turbulence model and the last one is Eulerian approach with Standard k-ε turbulence model. Geometrical and operational parameters have been taken from Aubin et al. (2004) to verify simulation results with their experimental data. The results show that the radialprofile of axial fluid velocity in each case has good agreement with experimental data. The results illustrate, almost with reasonable accuracy, using of ASM approach reduces the computation time near 20 percent, on the other hand, implementation of S-A turbulence modelsdecreases the simulation time close to 25 percent respect to k-ε model. This reduction in computation time is very useful for large scale simulation.

کلیدواژه ها

stirred bubble column, computational fluid dynamics, hydrodynamics, multi-phase approaches, Spalart-Allmaras (S-A) and k-ε turbulence model

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.