Acta mathematica scientia,Series B ›› 2018, Vol. 38 ›› Issue (3): 1057-1104.doi: 10.1016/S0252-9602(18)30801-4

• Articles • Previous Articles    

HELICAL SYMMETRIC SOLUTION OF 3D NAVIER-STOKES EQUATIONS ARISING FROM GEOMETRIC SHAPE OF THE BOUNDARY

Weifeng JIANG1, Kaitai LI2   

  1. 1. School of Sciences, Department of Mathematics, Wuhan University of Technology, Wuhan 430070, China;
    2. School of Mathematics and Statistics, Xi'an Jiaotong University, Xi'an 710049, China
  • Received:2016-02-03 Revised:2018-03-21 Online:2018-06-25 Published:2018-06-25
  • Contact: Weifeng JIANG E-mail:weifengjiang@163.com
  • Supported by:

    This work was supported by NSFC (91330116), State Major Basic Research and Development Project (2011CB 706505), NSFC (11371289), NSFC (11371288).

Abstract:

In this article, we investigate three-dimensional solution with helical symmetry in a gap between two concentric rotating cylinders, inside is a helicoidal surface (screw propeller) while outside is a cylindrical surface. Establish the partial differential equations and its variational formulation satisfied by a helical solution in a helical coordinate system using tensor analysis method, we provide a computational method for the power and propulsion of the screw. The existence and uniqueness of weak helical solutions are proved.

Key words: Navier-Stokes equations, helicoidal surface, rotating helical flow

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