【摘 要】
：
气升式反应器内气液两相流动力学特性对提高传质效率和降低运行成本有重要意义。基于粒子图像测速(PIV)技术,在改变曝气强度的条件下,分析距曝气管不同位置处反应器轴向各区
【机 构】
：
内蒙古工业大学能源与动力工程学院,
论文部分内容阅读
气升式反应器内气液两相流动力学特性对提高传质效率和降低运行成本有重要意义。基于粒子图像测速(PIV)技术,在改变曝气强度的条件下,分析距曝气管不同位置处反应器轴向各区域的液相流场、雷诺应力以及气泡动力学特性。结果表明,曝气强度对液相流场和雷诺应力的影响较大,在一定范围内增加曝气强度可以使得液相速度和雷诺应力值增加。同时分析了4mm孔径下圆帽状气泡的动力学特性。
The gas-liquid two-phase flow dynamics in an airlift reactor plays an important role in improving the mass transfer efficiency and reducing the running cost. Based on Particle Image Velocimetry (PIV), the liquid flow field, Reynolds stress and bubble dynamics in different regions of the reactor at different positions from the aerator were analyzed under the condition of changing aeration intensity. The results show that aeration intensity has a great influence on liquid flow field and Reynolds stress. Increasing the aeration intensity within a certain range can increase the liquid velocity and Reynolds stress. At the same time, the dynamic characteristics of the dome-shaped bubble with 4mm aperture were analyzed.
其他文献
采用微波消解法处理样品,以电感耦合等离子体发射光谱法(ICP—AES)测定并分析九种补血类中药中Zn,Mn,Na,K,Ca,Mg,Ni,Pb,Se,Fe,Cu,Al,B,Ti,Sn,Hg和Li元素的含量。结果显示,九
到美国没几天,时差感还未调过来,就急着去观光举世闻名的尼亚加拉瀑布。尼亚加拉瀑布,地处美国与加拿大边境。进入瀑布所在的州立公园,就有涛声传来。下车步行,人随路。转,
近期,我站及周边服务站陆续接到多起要求解决解放J6P-6×4牵引及工程车行驶跑偏(大多向右跑偏)故障的客户,出现此类故障的车有的是尚未上牌的全新车,有的是刚上好牌仅行驶了
目的:探讨健脾解毒方对人胃癌裸鼠皮下移植瘤微血管生成的抑制作用。方法:通过接种人胃癌MKN45细胞建立裸鼠人胃癌移植瘤模型。将60只荷瘤裸鼠随机分为模型组、5-氟尿嘧啶(5-
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
目的:应用灰色关联-TOPSIS法评价不同批次和不同产地干姜的质量,并进行质量比较。方法:以不同产地和批次干姜中6-姜辣素,8-姜辣素,10-姜辣素,6-姜烯酚,二乙酰基-6-姜辣二醇的
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.