The Flow Over a High-Viscosity Fluid Layer as a Drag Enhancement Technique

2017 ◽  
Author(s):  
Francisco J. Arias ◽  
Salvador Augusto D. Jimenez
Keyword(s):  
Fluid Layer ◽  
High Viscosity ◽  
Enhancement Technique ◽  
Viscosity Fluid

Stabilization of Journal Bearing Using Two-Layered Film Lubrication

2012 ◽  
Vol 134 (1) ◽  
Author(s):  
T. V. V. L. N. Rao
Keyword(s):  
Frequency Ratio ◽  
Journal Bearing ◽  
Fluid Layer ◽  
Load Capacity ◽  
High Viscosity ◽  
Fluid Film ◽  
Low Viscosity ◽  
Linearized Stability ◽  
Viscosity Fluid ◽  
Layered Fluid

The purpose of this paper is to present the linearized stability analysis of two-layered fluid film in the journal bearing. In this work, a modified classical Reynolds equation is derived under dynamic conditions consisting of two layers of fluid film described by Newtonian viscosities. The magnitude of lubricant layer’s film thickness and viscosities are taken into consideration. The Reynolds boundary conditions are used in the analysis of classical one-dimensional journal bearing to predict the stiffness and damping coefficients, threshold speed and critical whirl frequency ratio. The coefficients of load capacity, threshold speed, and critical whirl frequency ratio (Cw, Cω, CΩ) for two-layered film with reference to homogeneous film are computed as a function of the two parameters: (i) higher to lower dynamic viscosity ratio of two-layered fluid film (β), and (ii) thickness ratio of fluid layer attached to journal and bearing (γ). Higher threshold speed is obtained for thick high viscosity fluid film attached to the bearing surface and a thin low viscosity fluid film attached to the journal surface.

Partially Filled Flow Simulation Using Meshfree Method for High Viscosity Fluid in Plastic Mixer

2019 ◽  
Vol 34 (2) ◽  
pp. 279-289
Author(s):  
K. Sekiyama ◽  
S. Yamada ◽  
T. Nakagawa ◽  
Y. Nakayama ◽  
T. Kajiwara
Keyword(s):  
Flow Simulation ◽  
Meshfree Method ◽  
High Viscosity ◽  
Viscosity Fluid

Optical diagnostics of the structure and evolution of buoyant jets in a high-viscosity fluid

2014 ◽  
Vol 50 (5) ◽  
pp. 466-473 ◽  
Author(s):  
V. A. Arbuzov ◽  
E. V. Arbuzov ◽  
V. S. Berdnikov ◽  
N. S. Bufetov ◽  
Yu. N. Dubnishchev ◽  
...  
Keyword(s):  
Optical Diagnostics ◽  
High Viscosity ◽  
Buoyant Jets ◽  
Viscosity Fluid

Tests and numerical one-dimensional modelling of a high-viscosity fluid dam-break wave

1995 ◽  
Vol 33 (1) ◽  
pp. 17-26 ◽  
Author(s):  
J. Aguirre-Pe ◽  
F.P. Plachco ◽  
S. Quisca
Keyword(s):  
High Viscosity ◽  
Dam Break ◽  
One Dimensional ◽  
Viscosity Fluid

P031 Study on the Gas-Liquid Two-Phase Slug Flow in Micro-Tubes : High Viscosity Fluid Case

2015 ◽  
Vol 2015.90 (0) ◽  
pp. 449
Author(s):  
Yuki Yamaguchi ◽  
Hisato Minagawa ◽  
Ryo Kurimoto ◽  
Takahiro Yasuda
Keyword(s):  
Slug Flow ◽  
High Viscosity ◽  
Two Phase ◽  
Viscosity Fluid
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