旋转衍生力在旋转受限层板中的分布规律

白国强; 常海萍

doi:10.13224/j.cnki.jasp.2015.12.017

旋转衍生力在旋转受限层板中的分布规律

doi: 10.13224/j.cnki.jasp.2015.12.017

南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室, 南京 210016

详细信息

作者简介:
白国强(1984-),男,山西阳泉人,博士生,主要从事航空发动机高温部件冷却技术研究.

中图分类号: V231.3
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- 被引次数: 0
出版历程
- 收稿日期: 2014-05-04
- 刊出日期: 2015-12-28

Distribution of forces induced by rotation in rotating limited lamilloy

Jiangsu Province Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 采用数值模拟的方法,研究了旋转衍生力在旋转受限层板中的分布规律.研究表明:由于冷却流体被加热,离心力随着旋转半径的增加而降低,近壁面处离心力较低,远离壁面区域离心力较高.y方向哥氏力在进出口区域影响较大,中间区域可以忽略.z方向哥氏力在进出口区域影响较大,中间段随转速和旋转半径的增加而缓慢增加.离心力衍生的浮升力在冲击区域附近加速流体流动,在其他区域的近壁面处,离心力衍生的浮升力阻碍流体流动,在远离壁面区域,离心力衍生的浮升力加速流体流动.在中间段,离心力和离心力衍生的浮升力起主导作用.
- 离心力 /
- 哥氏力 /
- 浮升力 /
- 层板 /
- 分布规律
Abstract: The distribution of forces induced by rotating limited lamilloy was researched by numerical simulation. It was emphasized that because the cool fluid was heated, the centrifugal force was reduced with the increase of the radius, and became lower near the wall, but higher far from the wall.The Coriolis force directed y was evident in the areas of inlet and outlet, but it could be ignored in the middle of lamilloy. The Coriolis force directed z was evident in the areas of inlet and outlet, and increased slowly with the increase of the rotation speed and radius. The buoyancy force caused by centrifugal force increased the velocity of fluid near impact zoo, but in the other zoo and near the wall, it decreased the velocity of fluid, and far from the wall, it also increased the velocity of fluid. In the middle lamilloy, centrifugal force and buoyancy force caused by centrifugal force played a leading role.
- centrifugal force /
- Coriolis force /
- buoyancy force /
- lamilloy /
- distribution

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参考文献(18)

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