PDF(Pubmed)
Abstract：
UNASSIGNED: Nanofluids with aggregation effects mediated by nanoparticles, like geothermal panels and crossflow heat exchangers, ignite new industrial interests. Polymer and conversion processes have transport phenomena in the stagnation zone that must be continuously improved to raise the process quality standard.
UNASSIGNED: Hence, the current computational study examines a T i O 2 - C 2 H 6 O 2 nanofluid\'s unsteady stagnation-point flow performance via a shrinking horizontal cylinder. In addition, the effects of a magnetic field, joule-heating viscous dissipation, nanoparticles aggregation and mass suction on the boundary layer flow are reflected.
UNASSIGNED: ology: The RK-IV with shooting method is applied to resolve the simplified mathematical model numerically in computing software MATHEMATICA. In certain circumstances, comparing the current and prior findings indicates good agreement with a relative error of around 0%.
UNASSIGNED: The implementation of a heat transfer operation may be improved by increasing suction settings. Unsteadiness, nanoparticle volume fraction, magnetic, curvature, and Eckert number (implies the operating Joule heating and viscous dissipation) all influence heat transfer rate. The velocity and temperature profiles both increase as the unsteadiness, magnetic field, and nanoparticle volume fraction parameters increase, whereas the curvature and suction parameters show the opposite behavior. When the values of the suction parameters were changed from 2.0 to 2.5 with φ = 0.01, the heat transfer rates rose by 4.751%. A comparison shows that the model with aggregation has a better velocity profile, while the model without aggregation has a better temperature profile.
UNASSIGNED: Hence, the current computational study examines a T i O 2 - C 2 H 6 O 2 nanofluid\'s unsteady stagnation-point flow performance via a shrinking horizontal cylinder. In addition, the effects of a magnetic field, joule-heating viscous dissipation, nanoparticles aggregation and mass suction on the boundary layer flow are reflected.
UNASSIGNED: ology: The RK-IV with shooting method is applied to resolve the simplified mathematical model numerically in computing software MATHEMATICA. In certain circumstances, comparing the current and prior findings indicates good agreement with a relative error of around 0%.
UNASSIGNED: The implementation of a heat transfer operation may be improved by increasing suction settings. Unsteadiness, nanoparticle volume fraction, magnetic, curvature, and Eckert number (implies the operating Joule heating and viscous dissipation) all influence heat transfer rate. The velocity and temperature profiles both increase as the unsteadiness, magnetic field, and nanoparticle volume fraction parameters increase, whereas the curvature and suction parameters show the opposite behavior. When the values of the suction parameters were changed from 2.0 to 2.5 with φ = 0.01, the heat transfer rates rose by 4.751%. A comparison shows that the model with aggregation has a better velocity profile, while the model without aggregation has a better temperature profile.
摘要：
■具有纳米粒子介导的聚集效应的纳米流体，比如地热面板和横流热交换器，点燃新的工业利益。聚合物和转化过程在停滞区具有传输现象，必须不断改进以提高过程质量标准。
■因此，当前的计算研究通过收缩的水平圆柱体检查了TiO2-C2H6O2纳米流体的非稳态停滞点流动性能。此外,磁场的影响，焦耳加热粘性耗散，纳米粒子聚集和质量吸力对边界层流动的反映。
■ology：采用带射击方法的RK-IV在计算软件MATHEMATICA中数值求解简化的数学模型。在某些情况下,比较当前和先前的发现表明，相对误差约为0%。
热传递操作的实施可以通过增加抽吸设置来改进。不稳定，纳米颗粒体积分数，磁性,曲率,和Eckert数（意味着工作焦耳加热和粘性耗散）都会影响传热速率。速度和温度曲线都随着不稳定而增加，磁场,纳米粒子体积分数参数增加，而曲率和吸力参数显示相反的行为。当吸力参数的值从2.0变为2.5，φ=0.01时，传热率上升了4.751％。比较表明，具有聚集的模型具有更好的速度剖面，而没有聚集的模型具有更好的温度曲线。
■因此，当前的计算研究通过收缩的水平圆柱体检查了TiO2-C2H6O2纳米流体的非稳态停滞点流动性能。此外,磁场的影响，焦耳加热粘性耗散，纳米粒子聚集和质量吸力对边界层流动的反映。
■ology：采用带射击方法的RK-IV在计算软件MATHEMATICA中数值求解简化的数学模型。在某些情况下,比较当前和先前的发现表明，相对误差约为0%。
热传递操作的实施可以通过增加抽吸设置来改进。不稳定，纳米颗粒体积分数，磁性,曲率,和Eckert数（意味着工作焦耳加热和粘性耗散）都会影响传热速率。速度和温度曲线都随着不稳定而增加，磁场,纳米粒子体积分数参数增加，而曲率和吸力参数显示相反的行为。当吸力参数的值从2.0变为2.5，φ=0.01时，传热率上升了4.751％。比较表明，具有聚集的模型具有更好的速度剖面，而没有聚集的模型具有更好的温度曲线。
