scholarly journals Rigid vorticity transport equation and its application to vortical structure evolution analysis in hydro-energy machinery

2021 ◽  
Vol 15 (1) ◽  
pp. 1016-1033
Author(s):  
Chaoyue Wang ◽  
Yongshun Zeng ◽  
Zhifeng Yao ◽  
Fujun Wang
Keyword(s):  
Transport Equation ◽  
Vortical Structure ◽  
Structure Evolution ◽  
Evolution Analysis ◽  
Vorticity Transport

scholarly journals STRUCTURE EVOLUTION ANALYSIS OF ULTRAFINE PARTICLE OF SILVER OXIDE (Ag2O)

1997 ◽  
Vol 46 (2) ◽  
pp. 306
Author(s):  
LIU CUN-YE ◽  
LI JIAN ◽  
LIANG YI-PING
Keyword(s):  
Silver Oxide ◽  
Ultrafine Particle ◽  
Structure Evolution ◽  
Evolution Analysis

The Industrial Structure Evolution Analysis and Optimization Measures in Pingxiang

2013 ◽  
Vol 675 ◽  
pp. 13-16
Author(s):  
Dong Chen ◽  
Yun Jiang
Keyword(s):  
Structure Data ◽  
Industrial Structure ◽  
Structure Optimization ◽  
Structure Evolution ◽  
Evolution Analysis ◽  
Industrial Structure Optimization

This paper analyzes the Pingxiang City,1997-2009, three industrial structure data to explore the characteristics of its industrial structure and the transformation of the industrial structure optimization countermeasures.

The effect of buoyancy on vortex shedding in the near wake of a circular cylinder

1990 ◽  
Vol 220 ◽  
pp. 253-266 ◽  
Author(s):  
Keun-Shik Chang ◽  
Jong-Youb Sa
Keyword(s):  
Nusselt Number ◽  
Circular Cylinder ◽  
Drag Coefficient ◽  
Transport Equation ◽  
Fourth Order ◽  
Vortex Shedding ◽  
Near Wake ◽  
Periodic Flows ◽  
Vortex Pattern ◽  
Vorticity Transport

The phenomenon of vortex shedding from a heated/cooled circular cylinder has been investigated numerically in the mixed natural and forced convection regimes. Accuracy of the computation was achieved by the fourth-order Hermitian relation applied to the contravariant velocity components in the convection terms of the vorticity transport equation, and by the far-boundary stream-function condition of an integral-series form developed by the authors. Purely periodic flows at Re = 100, efficiently established through the use of a direct elliptic solver called the SEVP, was found to degenerate into a steady twin-vortex pattern at the critical Grashof number 1500, confirming an earlier experimental observation identified as ‘breakdown of the Kármán vortex street’. Various other buoyancy effects about the heated/cooled cylinder are discussed by means of the flow patterns, the Nusselt number and the drag coefficient curves.

scholarly journals A Dynamic LES Scheme for the Vorticity Transport Equation: Formulation anda PrioriTests

1998 ◽  
Vol 145 (2) ◽  
pp. 693-730 ◽  
Author(s):  
John R. Mansfield ◽  
Omar M. Knio ◽  
Charles Meneveau
Keyword(s):  
Transport Equation ◽  
Equation Formulation ◽  
Vorticity Transport
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