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Author:

Shen, Feng (Shen, Feng.) | Chen, Cong-Lian (Chen, Cong-Lian.) | Liu, Zhao-Miao (Liu, Zhao-Miao.) (Scholars:刘赵淼)

Indexed by:

EI Scopus SCIE

Abstract:

The three-dimensional pressure-and shear-driven flow phenomena in a circular recess of hydrostatic rotary table in heavy-duty computer numerical control machines is very complicated and has not been fully explored. Navier-Stokes equations have been applied through the whole flow region using a finite volume approach to explore this complicated flow phenomena, including the influences of feeding Reynolds number (Re-i), sliding Reynolds number (Re-s) and the recess geometry on flow behaviors. A test rig based on a particle image velocimetry was built to compare experimental and numerical results, finding a good agreement for stationary cases. The results show that the flow patterns in the recess are very complex and four three-dimensional vortices exist at Re-i = 448 and Re-s = 74.6. Four flow states are defined according to the structure of the vortices. Different sectional profiles of the streamlines and velocity vector fields are examined to reveal the mechanism of pressure-and shear-driven flow interactions. The results of influences of recess geometry on flow states and pressure patterns are intended to contribute to represent a database in view of the hydrostatic rotary table theoretical modeling.

Keyword:

Hydrostatic rotary table oil pad vortex pressure- and shear-driven flow phenomena recess flow

Author Community:

  • [ 1 ] [Shen, Feng]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China
  • [ 2 ] [Chen, Cong-Lian]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China
  • [ 3 ] [Liu, Zhao-Miao]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Shen, Feng]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China

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Source :

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE

ISSN: 0954-4062

Year: 2014

Issue: 6

Volume: 228

Page: 989-1004

2 . 0 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:176

JCR Journal Grade:4

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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