基于分数Maxwell模型对摇摆条件下流体流动特性的理论分析

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

Theoretical Research on Flowing Characteristics in Rolling Motion with Fractional Maxwell Model

摘要: 针对初始速度为零的流体,利用分数Maxwell模型对摇摆条件下圆管内的流体流动特性进行了理论分析。推导出了摇摆条件下的流体流动速度表达式。分析了摇摆运动对非牛顿流体和牛顿流体流动速度的影响和速度峰值与管壁处的速度梯度的变化规律。与非牛顿流体相比,牛顿流体受摇摆运动的影响更加平均。管壁处速度梯度变化规律与速度峰值变化规律相类似,二者波动周期均为摇摆周期的一半。
- 摇摆 /
- 分数Maxwell模型 /
- 速度 /
- 速度梯度
Abstract: The flowing characteristics of the flow with no initial velocity in a tube in rolling motion are investigated theoretically,with the fractional Maxwell method.The velocity in rolling motion is derived.The effect of rolling motion on the flowing velocity of Newtonian fluids and Non-Newtonian fluids is analyzed.The variation of peak velocity and velocity gradient in the wall is also investigated.Compared with the non-Newtonian fluid,the effect of rolling motion on Newtonian fluid is more averaged.The oscillation of velocity gradient at the wall is similar to that of velocity.And their oscillation period is half of the rolling period.
- Rolling /
- Fractional Maxwell model /
- Velocity /
- Velocity gradient