排灌机械工程学报
   首页  学报介绍  编 委 会  作者园地  征订启事  编校法规  编读往来  录用公告  广告合作   行业新闻  留  言  English 
排灌机械工程学报  2010, Vol. 28 Issue (6): 510-514    DOI: 10.3969/j.issn.1674—8530.2010.06.012
流体工程 最新目录 | 下期目录 | 过刊浏览 | 高级检索 Previous Articles  |  Next Articles  
搅拌滚筒内非牛顿流体的流场分析
谢  俊1, 郭洪锍2, 陈  炜1, 尹小琴1, 匡俐辉1
(1.江苏大学 机械工程学院, 江苏 镇江 212013; 2.常州广播电视大学 信息与工程系, 江苏 常州 213001)
Flow field analysis of non Newtonian fluid in mixing tumbling box
Xie Jun1,  Guo Hongliu2, Chen Wei1, Yin Xiaoqin1, Kuang Lihui1
(1.School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013,China; 2.Department of Information and Engineering, Changzhou Radio and TV University, Changzhou, Jiangsu 213001,China)
 全文: PDF (391 KB)   HTML (1 KB)   输出: BibTeX | EndNote (RIS)      背景资料
摘要 针对混凝土这种典型的非牛顿流体中的宾汉流体,建立了其本构方程和流体力学模型.以有限元为依据,应用计算流体动力学技术,基于k-ε模型,利用Fluent软件计算了预拌混凝土在搅拌滚筒内的三维流场,数值模拟搅拌叶片螺旋角为73°时流场的流线和轴向出料速度,较为真实地反映了混凝土在滚筒内搅拌的实际情况.通过与搅拌叶片螺旋角为66°和80°的搅拌滚筒内流动的模拟计算比对,表明螺旋角为73°的叶片的搅拌性能和出料速度均优于其他螺旋角的搅拌叶片,能满足搅拌运输车的搅拌滚筒对拌料匀质、送料连续和低动力消耗的要求.同时进行了相应的试验比对,验证了模拟分析的正确性.该搅拌筒内非牛顿宾汉流体混凝土流动的数值模拟,表明基于k-ε模型的CFD数值模拟方法可以用于搅拌筒内混凝土这种非牛顿流体的搅拌过程的分析.
服务
把本文推荐给朋友
加入我的书架
加入引用管理器
E-mail Alert
RSS
作者相关文章
郭洪锍
尹小琴
匡俐辉
关键词搅拌滚筒   非牛顿流体   搅拌叶片螺旋角   流场分析   计算流体动力学     
Abstract: According to the characteristic of concrete,which is of typical non Newtonian Bingham fluid, the constitutive equations and fluid mechanical model were set up. Based on finite element method and  k-ε model, the three dimensional flow field of readymixed concrete in mixing tumblingbox was calculated using Fluent software. The numerical simulation for streamline and axial output speed of flow field were obtained at the condition of mixing blade spiral angle of 73°. The actual concrete mixing situation in tumbling box was relatively truly reflected. Contrasted with other mixing blades with different spiral angles of 66° and 80°, the mixing performance and output speed with spiral angle of 73° was superior to other mixing blades, and it satisfied the requirements of  homogeneous materials, continuous feeding and low power consumption of mixing tumblingbox for mixing carriers. In the meantime, some comparison testing was done and the correctness of simulation was proved. The numerical simulation for the concrete of nonNewtonian Bingham fluid in mixing tumbling box shows that k-ε model based CFD method can be used for analyzing the mixing process of concrete in mixing tumblingbox.
Key wordsmixing tumblingbox   non Newtonian fluid   spiral angle of mixing blade   flow field analysis       computational fluid dynanics   
收稿日期: 2010-01-30; 出版日期: 2010-11-30
基金资助:

江苏省自然科学基金资助项目(BK2007095);镇江市工业科技攻关项目(GY2005003)

通讯作者: 谢俊(1968-),女,江苏武进人,副教授,博士(xiejun@ujs.edu.cn),主要从事机械设计及理论、流体机械特性等研究.   
作者简介: 郭洪锍(1985-),男,江苏靖江人,助教(ghl.2004@163.com),主要从事机械设计及理论研究.
引用本文:   
谢,俊,郭洪锍等. 搅拌滚筒内非牛顿流体的流场分析[J]. 排灌机械工程学报, 2010, 28(6): 510-514.
XIE ,JUN ,GUO Hong-Liu et al. Flow field analysis of non Newtonian fluid in mixing tumbling box[J]. Journal of Drainage and Irrigation Machinery Engin, 2010, 28(6): 510-514.
 
[1] 于世旭,仪垂杰,郭健翔,等.混凝土搅拌运输车搅拌罐内部流场的CFD分析[J].机床与液压,2007,35(10):111-114.Yu Shixu,Yi Chuijie,Guo Jianxiang,et al.The CFD analysis of flow field inside the concrete truck mixers mixing drum[J].Machine Tool & Hydraulic,2007,35(10):111-114.(in Chinese)
[2] 王安麟,孟井泉,杨兴,等.基于双流体模型的简易化两相搅拌流场数值模拟[J].机械设计,2007,24(6):45-48.Wang Anlin,Meng Jingquan,Yang Xing,et al.Numeri-cal value simulation of facilitated two phase agitated flow field based on double fluid model[J].Journal of Machine Design,2007,24(6):45-48.(in Chinese)
[3] 郭柏灵,林国广,尚亚东.非牛顿流动力系统[M].北京:国防工业出版社,2006.
[4] 王春林,吴志旺,司艳雷,等.旋流自吸泵气液两相流数值模拟[J].排灌机械,2009,27(3):163-167.Wang Chunlin,Wu Zhiwang,Si Yanlei,et al.Gas-liquid two-phase flow numerical simulation of a vortex flow self-priming pump[J].Drainage and Irrigation Machinery,2009,27(3):163-167.(in Chinese)
[5] 谢俊,刘军,马履中.汽车磁流变减振器流变力学特性的研究[J].江苏大学学报:自然科学版,2002,23(6):26-29.Xie Jun,Liu Jun,Ma Lüzhong.Study on rheological properties of vehicle MRF shock absorber[J].Journal of Jiangsu University:Natural Science Edition,2002,23(6):26-29.(in Chinese)
[6] 王福军.计算流体动力学分析--CFD软件原理与应用[M].北京:清华大学出版社,2004.
[7] Liu Chunho,Dennis Y C Leung,Alex C S Man,et al.Computational fluid dynamics simulation of the wind flow over an airport terminal building[J].Journal of Zhejiang University-Science:Applied Physics & Enginee-ring,2010,11(6):389-401.
[8] Cao Xiaochang,Zhang Tingan,Zhao Qiuyue.Computational simulation of fluid dynamics in a tubular stirred reactor[J].Transactions of Nonferrous Metals Society of China,2009,19(2):489-495.
[9] Crochet Marcel J,Davies A R,Walters K.Numerical Simulation of Non-Newtonian Flow[M].Amsterdam:Elsevier,1984.
[10] Zhang Min'ge,Zhang Lühong,Jiang Bin,et al.Calculation of Metzner constant for double helical ribbon impeller by computational fluid dynamic method[J].Chinese Journal of Chemical Engineering,2008,16(5):686-692.
[1] 刘竹青1, 肖若富1, 吕腾飞1, 李述林2. 弯掠叶片对轴流泵驼峰及空化性能的影响[J]. 排灌机械工程学报, 2012, 30(3): 270-273.
[2] 龙新平, 姚鑫, 杨雪龙. 多孔喷嘴射流泵流动模拟与涡结构分析[J]. 排灌机械工程学报, 2012, 30(2): 136-140.
[3] 常书平, 王永生. 基于CFD的混流泵空化特性研究[J]. 排灌机械工程学报, 2012, 30(2): 171-175.
[4] 田飞, 施卫东, 卢熙宁, 陈斌, 欧鸣雄. 三叶片潜水搅拌机的数值模拟[J]. 排灌机械工程学报, 2012, 30(1): 11-14.
[5] 朱荣生, 王韬, 付强, 陈景俊. 基于CFD技术的核电站上充泵全流场数值模拟[J]. 排灌机械工程学报, 2012, 30(1): 30-34.
[6] 陈红勋, 刘卫伟, 见 文, 魏培茹, 朱 兵. 基于流动控制技术的低比转速离心泵叶轮研发[J]. 排灌机械工程学报, 2011, 29(6): 466-470.
[7] 肖若富, 吕腾飞, 王福军, 刘竹青. 双吸式双蜗壳泵隔板优化设计[J]. 排灌机械工程学报, 2011, 29(6): 477-482.
[8] 郑 源, 茅媛婷, 周大庆, 张 单. 低扬程大流量泵装置马鞍区的流动特性[J]. 排灌机械工程学报, 2011, 29(5): 369-373.
[9] 高 波, 杨敏官, 吴承福, 谌志伟. BPX型排水泵内流分析及降噪方案[J]. 排灌机械工程学报, 2011, 29(5): 401-405.
[10] 潘中永, 李帅, 张华,施卫东. 搅拌罐内纸浆悬浮液内部流动数值模拟[J]. 排灌机械工程学报, 2011, 29(3): 204-208.
[11] 王 勇, 刘厚林, 袁寿其, 谈明高, 王 凯. 离心泵内部空化特性的CFD模拟[J]. 排灌机械工程学报, 2011, 29(2): 99-103.
[12] 杨正军,王福军,刘竹青,张志民 . 基于CFD的轴流泵空化特性预测[J]. 排灌机械工程学报, 2011, 29(1): 11-15.
[13] 王洪亮, 施卫东, 陆伟刚, 周 岭, 王 川. 深井离心泵的水力设计和二次回归正交试验[J]. 排灌机械工程学报, 2010, 28(6): 479-483.
[14] 丛小青, 王光辉, 袁丹青, 贾自强. 空间导叶式离心泵的数值计算及优化设计[J]. 排灌机械工程学报, 2010, 28(6): 488-491.
[15] 黄剑峰, 张立翔, 王文全, 姚 激. 基于大涡模拟的水轮机内瞬态湍流场特性分析[J]. 排灌机械工程学报, 2010, 28(6): 502-505.

江苏大学梦溪校区(镇江市梦溪园巷30号)图书馆5楼 0511-84440893 传真0511--84440033
Copyright 江苏大学杂志社 2010-2015 All Rights Reserved