Performance Characteristics of Cavitated Noncircular Journal Bearings in the Turbulent Flow Regime

A thermohydrodynamic analysis of tilting-pad bearing in turbulent flow regime is presented. Two tilting-pad journal bearings are studied. A local analysis of thermal turbulent phenomena is shown. The theoretical prediction of the maximum temperature decreases when the flow regime becomes nonlaminar and the decrease corresponding to higher power losses is explained using the velocity component profiles and the local heat flux in the film.

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Discussion: “Thermohydrodynamic Analysis of Tilting-Pad Journal Bearings Operating in Turbulent Flow Regime” (Bouard, L., Fillon, M., and Frene, J., 1996, ASME J. Tribol., 118, pp. 225–231)

Journal of Tribology ◽

10.1115/1.2832472 ◽

1997 ◽

Vol 119 (1) ◽

pp. 229-229

Author(s):

J. E. L. Simmons ◽

S. J. Dixon

Keyword(s):

Turbulent Flow ◽

Flow Regime ◽

Journal Bearings ◽

Turbulent Flow Regime ◽

Tilting Pad ◽

Tilting Pad Journal Bearings

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Convective Heat Transfer Characteristics of Low Concentration CuO-Water Nanofluids in the Turbulent Flow Regime Based on an Artificial Intelligence Models

Proceedings of the 15th International Heat Transfer Conference ◽

10.1615/ihtc15.fcv.008461 ◽

2014 ◽

Author(s):

Mehdi Mehrabi ◽

Mohsen Sharifpur ◽

Josua P. Meyer

Keyword(s):

Heat Transfer ◽

Artificial Intelligence ◽

Turbulent Flow ◽

Convective Heat Transfer ◽

Flow Regime ◽

Convective Heat ◽

Heat Transfer Characteristics ◽

Turbulent Flow Regime ◽

Intelligence Models ◽

Artificial Intelligence Models

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Thermal performance analysis of plate fin arrays with hexagonal perforations under turbulent flow regime

10.1063/1.5115847 ◽

2019 ◽

Author(s):

Imtiaz Taimoor ◽

Md Lutfor Rahman ◽

Nazneen Sultana Aankhy ◽

Muzahid Bin Khalid

Keyword(s):

Performance Analysis ◽

Turbulent Flow ◽

Flow Regime ◽

Thermal Performance ◽

Turbulent Flow Regime

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Influence of different flow regimes on the performance characteristics of a four-pad hydrostatic squeeze film damper loaded between pads

Industrial Lubrication and Tribology ◽

10.1108/ilt-05-2018-0215 ◽

2019 ◽

Vol 71 (3) ◽

pp. 440-446

Author(s):

Amina Nemchi ◽

Ahmed Bouzidane ◽

Aboubakeur Benariba ◽

Hicham Aboshighiba

Keyword(s):

Turbulent Flow ◽

Load Capacity ◽

Flow Regimes ◽

Performance Characteristics ◽

Squeeze Film ◽

Eccentricity Ratio ◽

Flow Conditions ◽

Content Type ◽

Turbulent Flow Regime ◽

Squeeze Film Dampers

Purpose The purpose of this paper is to study the influence of different flow regimes on the dynamic characteristics of four-pad hydrostatic squeeze film dampers (SFDs) loaded between pads. Design/methodology/approach A numerical model based on Constantinescu’s turbulent lubrication theory using the finite difference method has been developed and presented to study the effect of eccentricity ratio on the performance characteristics of four-pad hydrostatic SFDs under different flow regimes. Findings It was found that the influence of turbulent flow on the dimensionless damping of four-pad hydrostatic SFDs appears to be essentially controlled by the eccentricity ratio. It was also found that the laminar flow presents higher values of load capacity compared to bearings operating under turbulent flow conditions. Originality/value In fact, the results obtained show that the journal bearing performances are significantly influenced by the turbulent flow regime. The study is expected to be useful to bearing designers.

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