Performance characteristics of viscoseals in laminar and turbulent flow regimes

Souchet, Dominique; Jarray, Mohamed; Fatu, Aurelian

doi:10.1016/j.triboint.2017.04.025

Cited by 5 publications

(9 citation statements)

References 12 publications

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“…We use, in the different calculus, the values of grooves number and the grooves angle given in the case of aerodynamic herringbone [6,9] and these given in the case of viscoseals [13][14][15][16]. e data of the operating conditions are summarized in Table 1.…”

Section: Discussionmentioning

confidence: 99%

“…Otherwise, it is interesting to underline that the numerical model used for the characterization of a herringbone bearing has been validated in the case of viscoseals in laminar and turbulent regime [14]. In the case of a laminar regime, the results on the optimal geometry [11] were compared with those of Boon and Tall [13].…”

Section: Numerical Solution and Numerical Algorithmmentioning

confidence: 99%

“…e results are compared to those of Boon and Tall [13]. In 2017, Souchet et al [14] developed a model for different flow regimes in the case of a propeller joint.…”

Section: Introductionmentioning

confidence: 99%

“…It is this model that was introduced here. e publications, written in part by Souchet et al [11,14], describe the Reynolds equation thus modified as well as the numerical algorithm of resolution [11,12,14,19].…”

Section: Introductionmentioning

confidence: 99%

“…To minimize the problem of fluid leakage into systems and from models developed and validated with theoretical and experimental results on the viscoseals [11,14], in this paper our study will be extended to different herringbone grooved journal bearing geometries, for an incompressible lubricant.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Numerical Analysis of a Hydrodynamic Herringbone Grooved Journal Bearing

Souchet

Senouci

Zaïdi

et al. 2020

Journal of Engineering

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In hydrodynamic lubrication, at very high rotational speed, the phenomenon of axial fluid leakage is often present. This can involve an increase of shear stress in the contact and consequently a considerable increase of the temperature. For that and in order to solve this problem, we took interest in the herringbone grooved journal bearings. The researches made before on these types of groove bearing have shown that they present a good dynamical behavior with a low eccentricity and a low axial flow. In this paper, a numerical study of a herringbone journal bearing operating behavior, under laminar and isothermal regime, is presented. The theoretical model, based on the classical Reynolds equation, is used. In order to include the film rupture and reformation, the Reynolds equation is modified using a mass conservative algorithm. To understand the behavior of these herringbone grooved journal bearings well, numerical modeling, using finite element method, has been developed. Various geometrical shapes of the herringbone grooved journal bearings have been analyzed, allowing us to limit the fluid leakage problem, by working particularly on the contact form.

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Section: Discussionmentioning

confidence: 99%

Section: Numerical Solution and Numerical Algorithmmentioning

confidence: 99%

“…e results are compared to those of Boon and Tall [13]. In 2017, Souchet et al [14] developed a model for different flow regimes in the case of a propeller joint.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Numerical Analysis of a Hydrodynamic Herringbone Grooved Journal Bearing

Souchet

Senouci

Zaïdi

et al. 2020

Journal of Engineering

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Sealing performance solution by means of a liquid-gas interface tracking approach: Application to viscoseals

Jarray

Souchet

Fatu

et al. 2018

Tribology International

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Experimental and numerical investigation of a viscoseal: part I

Jarray¹,

Yann²,

Fatu³

et al. 2019

Sealing Technology

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This article, which is published in two parts, describes research that focuses on the analysis – through an experimental study – of the sealing behaviour of a non-contact dynamic sealing device known as a viscoseal (or sometimes called a helical groove seal). Despite its reliability and its advantageous characteristics, compared with other types of sealing devices, the viscoseal is still under-researched because of its complex characteristics. The experimental apparatus used in this work is equipped with two different test cells. This first, made from acrylic glass, is transparent and is used for the visualisation of the liquid–air interface within the viscoseal. The second cell, used for pressure measurement, is composed of bronze. The experimental results are compared with numerical results obtained using the Reynolds model and also with computational fluid dynamics code. The first instalment, which appears here, includes a general introduction and covers the experimental set-up and relevant references. Part II will be published in the September issue.

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Performance characteristics of viscoseals in laminar and turbulent flow regimes

Cited by 5 publications

References 12 publications

Numerical Analysis of a Hydrodynamic Herringbone Grooved Journal Bearing

Numerical Analysis of a Hydrodynamic Herringbone Grooved Journal Bearing

Sealing performance solution by means of a liquid-gas interface tracking approach: Application to viscoseals

Experimental and numerical investigation of a viscoseal: part I

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