Some aspects of lubrication in heavy regimes: thermal effects, stability and turbulence

Durany, J.; Pereira-Pérez, J. y Varas Merida, Fernando (2014). Some aspects of lubrication in heavy regimes: thermal effects, stability and turbulence. "Mathematics and Computers in Simulation", v. 102 ; pp. 90-103. ISSN 2070-0482. https://doi.org/10.1016/j.matcom.2013.09.005.

Descripción

Título: Some aspects of lubrication in heavy regimes: thermal effects, stability and turbulence
Autor/es:
  • Durany, J.
  • Pereira-Pérez, J.
  • Varas Merida, Fernando
Tipo de Documento: Artículo
Título de Revista/Publicación: Mathematics and Computers in Simulation
Fecha: 2014
Volumen: 102
Materias:
Escuela: E.T.S.I. Aeronáuticos (UPM) [antigua denominación]
Departamento: Matemática Aplicada a la Ingeniería Aeroespacial
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

In this work, a combination of numerical methods applied to thermohydrodynamic lubrication problems with cavitation is presented. It should be emphasized the difficulty of the nonlinear mathematical coupled model involving a free boundary problem, but also the simplicity of the algorithms employed to solve it. So, finite element discretizations for the hydrodynamic and thermal equations combined with upwind techniques for the convection terms and duality methods for nonlinear features are proposed. Additionally, a model describing the movement of the shaft is provided. Considering the shaft as a rigid body this model will consist of an ODE system relating acceleration of the center of gravity and external and pressure loads. The numerical experiments of mechanical stability try to clarify the position of the neutral stability curve. Finally, a rotating machine for ship propulsion involving both axial and radial bearings operating with nonconventional lubricants (seawater to avoid environmental pollution) is analyzed by using laminar and turbulent inertial flows.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaMTM2010-21135-C02-02Sin especificarSin especificarSin especificar

Más información

ID de Registro: 37425
Identificador DC: http://oa.upm.es/37425/
Identificador OAI: oai:oa.upm.es:37425
Identificador DOI: 10.1016/j.matcom.2013.09.005
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0378475413002280#
Depositado por: Memoria Investigacion
Depositado el: 19 Oct 2015 07:36
Ultima Modificación: 19 Oct 2015 07:42
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