1 resultado para Rough interfaces
em Biblioteca de Teses e Dissertações da USP
Filtro por publicador
- JISC Information Environment Repository (1)
- Rhode Island School of Design (1)
- ABACUS. Repositorio de Producción Científica - Universidad Europea (1)
- Aberdeen University (1)
- Abertay Research Collections - Abertay University’s repository (3)
- Aberystwyth University Repository - Reino Unido (18)
- Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (6)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (6)
- ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (7)
- Archimer: Archive de l'Institut francais de recherche pour l'exploitation de la mer (1)
- Archive of European Integration (1)
- Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (1)
- Aston University Research Archive (15)
- Biblioteca de Teses e Dissertações da USP (1)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (4)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (5)
- Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (10)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (21)
- Boston University Digital Common (2)
- Brock University, Canada (8)
- Bucknell University Digital Commons - Pensilvania - USA (1)
- Bulgarian Digital Mathematics Library at IMI-BAS (3)
- CaltechTHESIS (8)
- Cambridge University Engineering Department Publications Database (93)
- CentAUR: Central Archive University of Reading - UK (60)
- Chinese Academy of Sciences Institutional Repositories Grid Portal (51)
- Cochin University of Science & Technology (CUSAT), India (2)
- Comissão Econômica para a América Latina e o Caribe (CEPAL) (1)
- CORA - Cork Open Research Archive - University College Cork - Ireland (3)
- CUNY Academic Works (3)
- Deakin Research Online - Australia (47)
- DI-fusion - The institutional repository of Université Libre de Bruxelles (1)
- Digital Archives@Colby (1)
- Digital Commons - Michigan Tech (1)
- Digital Commons at Florida International University (2)
- Digital Peer Publishing (3)
- Diposit Digital de la UB - Universidade de Barcelona (1)
- DRUM (Digital Repository at the University of Maryland) (1)
- Düsseldorfer Dokumenten- und Publikationsservice (1)
- Earth Simulator Research Results Repository (1)
- Glasgow Theses Service (1)
- Greenwich Academic Literature Archive - UK (3)
- Harvard University (3)
- Helda - Digital Repository of University of Helsinki (6)
- Indian Institute of Science - Bangalore - Índia (47)
- Infoteca EMBRAPA (4)
- Instituto Politécnico de Castelo Branco - Portugal (1)
- Instituto Politécnico de Santarém (2)
- Iowa Publications Online (IPO) - State Library, State of Iowa (Iowa), United States (1)
- Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (7)
- Massachusetts Institute of Technology (1)
- Memoria Académica - FaHCE, UNLP - Argentina (12)
- Ministerio de Cultura, Spain (9)
- National Center for Biotechnology Information - NCBI (4)
- Plymouth Marine Science Electronic Archive (PlyMSEA) (4)
- Publishing Network for Geoscientific & Environmental Data (1)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (47)
- Queensland University of Technology - ePrints Archive (142)
- RDBU - Repositório Digital da Biblioteca da Unisinos (8)
- Repositorio Académico de la Universidad Nacional de Costa Rica (3)
- Repositório Científico da Universidade de Évora - Portugal (1)
- Repositório Científico do Instituto Politécnico de Santarém - Portugal (2)
- Repositório digital da Fundação Getúlio Vargas - FGV (4)
- Repositório Digital da UNIVERSIDADE DA MADEIRA - Portugal (3)
- Repositório Digital da Universidade Municipal de São Caetano do Sul - USCS (1)
- Repositório Institucional da Universidade de Aveiro - Portugal (4)
- Repositório Institucional da Universidade de Brasília (1)
- Repositório Institucional da Universidade Estadual de São Paulo - UNESP (1)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (68)
- Repositorio Institucional Universidad EAFIT - Medelin - Colombia (1)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (2)
- SAPIENTIA - Universidade do Algarve - Portugal (2)
- School of Medicine, Washington University, United States (1)
- Universidad Autónoma de Nuevo León, Mexico (1)
- Universidad de Alicante (3)
- Universidad Politécnica de Madrid (16)
- Universidade Complutense de Madrid (3)
- Universidade de Madeira (1)
- Universidade Federal de Uberlândia (1)
- Universidade Federal do Pará (8)
- Universidade Federal do Rio Grande do Norte (UFRN) (16)
- Universidade Metodista de São Paulo (13)
- Universitat de Girona, Spain (1)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (1)
- Université de Lausanne, Switzerland (1)
- Université de Montréal, Canada (5)
- Université Laval Mémoires et thèses électroniques (1)
- University of Connecticut - USA (1)
- University of Michigan (51)
- University of Queensland eSpace - Australia (15)
- University of Southampton, United Kingdom (1)
- University of Washington (3)
- USA Library of Congress (2)
- WestminsterResearch - UK (2)
Resumo:
Friction in hydrodynamic bearings are a major source of losses in car engines ([69]). The extreme loading conditions in those bearings lead to contact between the matching surfaces. In such conditions not only the overall geometry of the bearing is relevant, but also the small-scale topography of the surface determines the bearing performance. The possibility of shaping the surface of lubricated bearings down to the micrometer ([57]) opened the question of whether friction can be reduced by mean of micro-textures, with mixed results. This work focuses in the development of efficient numerical methods to solve thin film (lubrication) problems down to the roughness scale of measured surfaces. Due to the high velocities and the convergent-divergent geometries of hydrodynamic bearings, cavitation takes place. To treat cavitation in the lubrication problem the Elrod- Adams model is used, a mass-conserving model which has proven in careful numerical ([12]) and experimental ([119]) tests to be essential to obtain physically meaningful results. Another relevant aspect of the modeling is that the bearing inertial effects are considered, which is necessary to correctly simulate moving textures. As an application, the effects of micro-texturing the moving surface of the bearing were studied. Realistic values are assumed for the physical parameters defining the problems. Extensive fundamental studies were carried out in the hydrodynamic lubrication regime. Mesh-converged simulations considering the topography of real measured surfaces were also run, and the validity of the lubrication approximation was assessed for such rough surfaces.