Holdup相关论文
针对脉冲筛板萃取柱溶质质量传递和两相逆流流动特性问题，本文采用轴向扩散微分接触模型进行动态的数值模拟。该模型假定分散相为一......
,Primary study on holdup measurement of 235U in pipe using γ-ray spectrometry and Monte Carlo simula
The pipe holdup measurement is very important for decommissioning nuclear facilities and nuclear-material control and ac......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Primary study on holdup measurement of 235U in pipe using γ-ray spectrometry and Monte Carlo simulat
The pipe holdup measurement is very important for decommissioning nuclear facilities and nuclear-material control and ac......
Gas holdups of large bubbles and small bubbles were measured by means of dynamic gas disengagement approach in the press......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
对于需要进行专用性资产投资或通过契约安排形成专用性资产投资的经销关系中,往往会存在双边道德风险:一是生产商敲竹杠的道德风险......
考察了开式涡轮转盘塔(OTRDC)中的分散相滞留率和液泛特性。采用五种不同的液-液体系,在两种不同直径的塔中进行了实验。给出了估......
电磁流动成像测井可以实时测量油井内油、气、水在流动截面上的分布图像,进一步通过图像分析识别流体的流型,提取流动参量。根据油......
以上－煤油为介质，在内径为０．０３１ｍ的往复振动板式萃取塔内研究了此塔的分散相持液量、轴向混合和液滴大小。研究表明分散相持液量与板振幅、......
在内径0.3 m、高6.6 m的加压鼓泡床反应器内采用床层塌落技术测量床层内的大小气泡气含率实验.由于大小气泡上升速度不同,床层塌落......
Study on the Holdup and Mass Transfer Performances for Gas-Liquid-Liquid System in a Screen Plate Co
The gas and dispersed phase holdups and mass transfer coefficients of liquid-iquid were determined for gas-liquid-liquid......
A new model for determining bubble size distributions in bubble columns by the dynamic gasdisengagement(DGD)technique is......
Axial and radial profiles of gas and solids holdups have been studied in agas-liquid-solid circulating fluidized bed at ......
The time-dependent liquid film thickness and pressure drop were measured by using parallel-wire conductance probes and c......
The time-dependent liquid film thickness and pressure drop are measured by using parallel-wire conduc tance probes and c......
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在空气、水和小的固体玻璃或氧化铝球形颗粒床层中,测定了两相并流时压降和持液量。测定了流体流率、颗粒粒度及材质,分别对压降和......
采用Eulerlan—Eulerian多流体模型和k-ε-A。多相湍流模型，模拟研究了带挡板的直径为0．154m的标准Rushton搅拌槽内含两种不同粒径固......
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Variation law of gas holdup in an autoclave during the pressure leaching process by using a mixed-fl
The multiphase reaction process of pressure leaching is mainly carried out in the liquid phase. Therefore, gas holdup is......
本文研究了气、液两相垂直上升流动的摩擦压降，改进了两相液中流体的压差与持液量的测定技术，实验在内径为１９ｍｍ、高度为１５００ｍｍ的垂直玻璃管中完......
Most multiphase flow separation detection methods used commonly in oilfields are low in efficiency and accuracy,and have......
为阐明高炉下部熔融物的滞留特性，对填料床内液体的滞留量进行了冷态模拟实验研究，考察了液体的粘度、密度和表面张力、填料的粒度和......
该文研究了两种直径的直管油水两相流动对流型和相含率的影响和在不同管径的水平并行分支管路中的相含率变化规律。实验设备包括内......
本文从理论上建立了往复振动筛板萃取柱内分散相总体平均滞存率与压降的关系，测量了各种操作条件下柱内分散相的总体平均滞存率，为开......
天然气运输过程当中,由于弯管处的阻力所造成的局部能量损失,以及重力的作用,造成气体携液能力的降低,本文将通过workbench建立不......
在内径为90mm的搅拌萃取塔中，对分散相滞存率和液泛速度进行了研究，实验用的物系为煤油－水，煤油－15％甘油水，锭子油－水，2－乙基己醇－水，实验结果......
1 INTRODUCTIONBubble diameter distribution and gas holdup are very important parameters indicatingthe characteristics of......
起伏多相流管路持液率计算方法在工艺计算中具有重要的地位，但目前只能靠经验或半经验相关式计算。计算水平管持液率，Ｆａｔｏｎ、Ｄｕｋｌｅｒｌｌ相关式了，在下......
研究的目的是为了简化和改进泰特尔和杜克勒建立的估算水平两相流液体滞留量的力学模型，在一条直径为５０．８ｍｍ｀长为３６ｍ的实验管道上，用煤油空气的......
指出了Ｂｅｇｇｓ－Ｂｒｉｌｌ截面含液率计算模型在计算下倾管路时存在的问题，并从数学上进行了分析，推导得出了截面含液率计算公式在计算下倾管时的使用范......
Rotor–stator reactor(RSR), an efficient mass transfer enhancer, has been applied in many fields. However,the hydrodynam......
The hydrodynamics is still not fully understood in the three-phase stirred tank equipped with multi-impeller due to the ......
Hydrodynamics in vertical tubular leaching reactor was studied in this work. Based on the observation of particle saltat......
Effects of internals on phase holdup and backmixing in a slightly-expanded-bed reactor with gas–liqu
Five different internals were designed,and their effects on phase holdup and backmixing were investigated in a gas–liqu......
