Numerical calculation of particle and bubble dispersion in a fluid-phase resonance mixer

液相共振混合器中颗粒和气泡分散的数值计算

基本信息

项目摘要

In preliminary investigations it could be demonstrated that the fluid-phase resonance mixer (FPR-mixer) is suitable for realising effective fluid mixing. For this purpose, both numerical calculations (with OpenFOAM) as well as experiments were conducted. In the present proposal it is intended to prove the suitability of the FPR-mixer for particle and bubble dispersion. The numerical calculations shall be conducted by the Euler (LES)/Lagrange approach using again OpenFOAM.For allowing a realistic numerical calculation of particle and bubble dispersion in a liquid phase, however, the dynamics of the dispersed phase shall be analysed considering all relevant fluid forces. This implies an extension of the equation of motion accounting for drag, gravity/buoyancy, pressure term, added mass, basset-force and slip-shear lift. The coefficients for added mass and Basset term shall be taken according to Odar & Hamilton (1964) as well as those recently suggested by Michaelides & Roig (2011), which depends for the Basset term on the Strouhal number. Results obtained with both coefficients will be compared. Moreover, the importance of the different unsteady forces will be analyzed in detail and the simulation results will be compared with measurements in the FPR-mixer. These studies will be done in dependence of the Stokes-number (depending on particle- and bubble-size, density ratio and pulsation frequency) and provide corresponding recommendations regarding the importance of the unsteady forces.On the basis of these developments, numerical calculations of the dispersion of particles and bubbles are planned in order to optimise geometry (e.g. diameter of immersed pipe and bottom clearance) and operational conditions (e.g. oscillation frequency) of the FPR-mixer. The objective is achieving a homogeneous distribution of particles or bubbles as much as possible. For identifying these conditions the Stokes-number shall be varied over the relevant range. In addition the effect of the unsteady forces on the dispersion result in a technical process will be analysed in detail for the first time.For validating the numerical calculations, experiments for selected conditions will be conducted. The simultaneous measurement of the velocity fields for continuous and dispersed phase will be realised by using fluorescing tracer particles in conjunction with the application of PIV (particle image velocimetry) as well as PTV (particle tracking velocimetry). By using two CCD-cameras with appropriate optical filters both phases are reliably distinguished. In addition instantaneous dispersed phase concentration fields will be estimated.
初步研究表明,液相共振混合器(fpr -混合器)适合实现流体的有效混合。为此,进行了数值计算(用OpenFOAM软件)和实验。在本提案中,旨在证明fpr混合器对颗粒和气泡分散的适用性。数值计算采用欧拉(LES)/拉格朗日方法,再次使用OpenFOAM。然而,为了对颗粒和气泡在液相中的分散进行真实的数值计算,必须考虑所有相关的流体力来分析分散相的动力学。这意味着考虑到阻力、重力/浮力、压力项、附加质量、基础力和滑移剪切升力的运动方程的扩展。附加质量和Basset项的系数应根据Odar & Hamilton(1964)以及Michaelides & Roig(2011)最近提出的建议,其中Basset项取决于Strouhal数。用两个系数得到的结果将进行比较。此外,还详细分析了不同非定常力的重要性,并将模拟结果与fpr混合器中的测量结果进行了比较。这些研究将根据斯托克斯数(取决于颗粒和气泡的大小、密度比和脉动频率)进行,并就非定常力的重要性提供相应的建议。在这些发展的基础上,计划对颗粒和气泡的分散进行数值计算,以优化fpr混合器的几何形状(例如浸入管的直径和底部间隙)和操作条件(例如振荡频率)。目标是尽可能实现粒子或气泡的均匀分布。为确定这些条件,斯托克数应在相关范围内变化。此外,本文还首次详细分析了非定常力对工艺过程中分散结果的影响。为了验证数值计算,将在选定的条件下进行实验。通过荧光示踪粒子结合PIV(粒子图像测速)和PTV(粒子跟踪测速)的应用,可以实现连续相和分散相速度场的同时测量。通过使用两个带有适当滤光片的ccd相机,可以可靠地区分两个相位。此外,还将估计瞬时分散相浓度场。

项目成果

期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Numerical and experimental analysis of Fluid Phase Resonance mixers
液相共振混合器的数值和实验分析
  • DOI:
    10.1016/j.ces.2017.08.012
  • 发表时间:
    2017
  • 期刊:
  • 影响因子:
    4.7
  • 作者:
    Schmalfuß;Sommerfeld
  • 通讯作者:
    Sommerfeld
{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

Professor Dr.-Ing. Martin Sommerfeld其他文献

Professor Dr.-Ing. Martin Sommerfeld的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('Professor Dr.-Ing. Martin Sommerfeld', 18)}}的其他基金

Investigation on gas-liquid-solid three phase flow coupled with meso-scale particle-bubble interactions, particle-liquid turbulence and bubble induced turbulence in bubble column reactors
鼓泡塔反应器中气-液-固三相流与细观颗粒-气泡相互作用、颗粒-液湍流和气泡诱导湍流耦合的研究
  • 批准号:
    391978046
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Modelling the influence of bubble dynamics on motion, mass transfer and chemical reaction
模拟气泡动力学对运动、传质和化学反应的影响
  • 批准号:
    367360141
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Analysis and modelling the coating of solid particles
固体颗粒涂层的分析和建模
  • 批准号:
    336370664
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Transport von nicht-sphärischen Partikeln in turbulenten Innenströmungen
非球形颗粒在湍流内部流动中的传输
  • 批准号:
    175576138
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Experimental investigation and modelling of coalescence and agglomeration for spray drying of suspensions
悬浮液喷雾干燥聚结和团聚的实验研究和建模
  • 批准号:
    121820773
  • 财政年份:
    2009
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Simulation turbulenter kolloidaler Systeme und Vorhersage der Agglomeratmorphologie
湍流胶体系统的模拟和团聚形态的预测
  • 批准号:
    43660057
  • 财政年份:
    2007
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Modellierung des Einflusses von Partikelagglomeration und -bruch für eine verbesserte numerische Berechnung von Gaszyklonen
模拟颗粒团聚和破碎的影响,以改进气体旋流器的数值计算
  • 批准号:
    26743416
  • 财政年份:
    2006
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Dreidimensionale Visualisierung von Wirbelstrukturen bei der turbulenten Vermischung mit Hilfe von PIV und LIF
使用 PIV 和 LIF 对湍流混合过程中的涡流结构进行三维可视化
  • 批准号:
    5445179
  • 财政年份:
    2005
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Einbeziehung der Strukturentstehung von Agglomeraten in CFD-Methoden zur Berechnung von Produkteigenschaften
将附聚物的结构形成纳入计算产品性能的 CFD 方法中
  • 批准号:
    5435834
  • 财政年份:
    2004
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Entwicklung eines Euler/Lagrange-Verfahrens mit räumlich verteilter Kopplung
具有空间分布耦合的欧拉/拉格朗日方法的发展
  • 批准号:
    5428546
  • 财政年份:
    2004
  • 资助金额:
    --
  • 项目类别:
    Research Grants

相似国自然基金

非管井集水建筑物取水机理的物理模拟及计算模型研究
  • 批准号:
    40972154
  • 批准年份:
    2009
  • 资助金额:
    41.0 万元
  • 项目类别:
    面上项目

相似海外基金

Analytic calculation for precise predictions in particle physics phenomenology
粒子物理现象学精确预测的解析计算
  • 批准号:
    20J00328
  • 财政年份:
    2020
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for JSPS Fellows
Time resolved simulation of particle rebound for erosion calculation in jet aero engines
用于喷气航空发动机腐蚀计算的粒子回弹的时间分辨模拟
  • 批准号:
    420603919
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
4D cone beam computed tomography as a novel tool for accurate time-resolved dose calculation in particle therapy
4D 锥形束计算机断层扫描作为粒子治疗中精确时间分辨剂量计算的新工具
  • 批准号:
    399148265
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Dose calculation algorithm for charged-particle beams passing through materials with microheterogeneity
带电粒子束穿过微不均匀材料的剂量计算算法
  • 批准号:
    17K09074
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of the electronic structure calculation using the particle method
粒子法电子结构计算的发展
  • 批准号:
    16K05047
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of calculation code for physical phenomenon elucidation on the way from physical to chaemical processes in particle irradiation
粒子辐照中从物理到化学过程的物理现象解释计算代码的开发
  • 批准号:
    25390131
  • 财政年份:
    2013
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Dedicated calculation method using GP-GPU to dose distribution in particle therapy.
使用 GP-GPU 的粒子治疗剂量分布专用计算方法。
  • 批准号:
    23602003
  • 财政年份:
    2011
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Refinment of calculation model for activation induced by medical particle beams
医用粒子束诱导激活计算模型的完善
  • 批准号:
    23791419
  • 财政年份:
    2011
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
A Novel Dose Calculation Method for Targeted Radionuclide Therapy
一种新的放射性核素靶向治疗剂量计算方法
  • 批准号:
    7888739
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
A Novel Dose Calculation Method for Targeted Radionuclide Therapy
一种新的放射性核素靶向治疗剂量计算方法
  • 批准号:
    8303411
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了