Influence of Rheological Model on Computation of Traction Coefficient of Aviation Lubricating Oils 流变模型对航空润滑油拖动系数计算的影响
The influence of gas flow rate, liquid flow rate, draft tube to the reactor diameter, solid volume fraction, CMC solution concentration and its rheological property on gas holdup and volumetric mass transfer coefficient were discussed. 讨论了气速、液速、导流筒直径与反应器直径比、固体装填量、羧甲基纤维素钠溶液浓度及其流变特性对它们的影响。
The rheological properties of starches from different rice variety and the influence of temperature and concentration on consistency coefficient and flow behavior index were studied in order to offer parameters for selecting raw material and food processing. 以不同品种大米淀粉为材料,研究淀粉糊的流变学特性,温度、淀粉糊浓度对黏度系数、流变指数的影响,为淀粉质食品的原料选择和加工提供参数。
The effect of concentration was analyzed on the rheological behavior of polymer solution. The variable laws of apparent viscosity, fluid index n, and consistency coefficient k was described with concentration of polymer solution. 同时,分析了聚合物溶液浓度对其流变特性的影响,描述了聚合物溶液表现粘度、流性指数n和稠度系数K随聚合物溶液浓度的变化规律。
And the effect of salinity on the rheological characteristics of polymer solution was researched. Through matching rheological curve, the rheology parameters are calculated, the higher the salinity is, the smaller the consistency coefficient is, and the bigger the power law index is. 且通过流变曲线拟合,得出矿化度对聚合物溶液流变性影响表现为,矿化度越高,幂律指数越大,稠度系数越小。
The volume shrinkage of semi-solid melt in a rheological forming process arises from a sum of such three parts as liquid, solid and solidification contract, which is controlled by the contract coefficient of every parts and solid fraction in semi-solid melt. 半固态合金熔体的体收缩是液相和固相温度降低带来的体收缩以及凝固相变体收缩3部分之和,其大小主要受各相的收缩系数和固相率控制。
The effects of water on the rheological behavior of polyacrylonitrile-dimethylsulfoxide ( PAN-DMSO) solution, the composition of as-spun fiber and double diffusion coefficient were studied. 研究了水对聚丙烯腈-二甲基亚砜(PAN-DMSO)纺丝溶液流变性能和初生纤维组成及双扩散系数的影响。
It was pointed out that the rheological property of oil is the important factor effecting on the energy economy, that means reasonable HTHS ( high temperature and high shear) value, lower viscosity and viscosity-pressure coefficient of engine oils can promote the energy economy. 指出了发动机油的流变性能是影响油品节能效果的重要因素,具有合理高温高剪切粘度的高粘度指数、低粘度和低粘压系数的发动机油利于节能;
The optimum rheological model of rock mass in the test area was given, and the instantaneous elastic modulus, long-term elastic modulus, viscoelastic modulus and viscoelastic coefficient were obtained by in-situ rheological load test curves. 分析了岩体流变荷载试验曲线,给出了能反映试验区域内岩体变形规律的最佳流变模型,反演获得了试验区域内岩体的瞬时弹性模量、长期弹性模量、粘弹性模量和粘弹性系数。
With the increase of the water cut, both the rheological parameter and the viscosity coefficient are on a constant decrease. 随着含水率的增加,流变指数和稠度系数不断减小。
When the fluid is non-Newtonian fluid, the rheological parameter increases and the viscosity coefficient decreases with a rise of the temperature. 随着温度的升高,流变指数增大而稠度系数减小;
It is indicated that rheological characteristic of Xiao-shan soft soil is remarkable, and the over-consolidated ratio affects the coefficient of secondary consolidation significantly. 4. 试验结果表明,萧山软粘土具有明显的非线性和流变特性,超固结比对次固结系数有显著的影响。
It is found that shear and elongational rheological properties are dependent on LCB structure, LCB samples show obvious strain hardening behavior and strain hardening coefficient increases with LCB level. 研究发现,剪切与拉伸流变性能依赖于长支化结构,支化改性样品在瞬态拉伸粘度中具有应变硬化性能,支化度越大应变硬化系数越高。