S
S.J. Howell-Smith
Researcher at Loughborough University
Publications - 26
Citations - 620
S.J. Howell-Smith is an academic researcher from Loughborough University. The author has contributed to research in topics: Lubrication & Piston. The author has an hindex of 14, co-authored 25 publications receiving 529 citations.
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Journal ArticleDOI
Combined numerical and experimental investigation of the micro-hydrodynamics of chevron-based textured patterns influencing conjunctional friction of sliding contacts
Nicholas J. Morris,Michael Leighton,M. De la Cruz,Ramin Rahmani,Homer Rahnejat,S.J. Howell-Smith +5 more
TL;DR: In this article, a combined numerical and experimental investigation is presented to ascertain the beneficial effect of pressure perturbation caused by entrapped reservoirs of lubricant in cavities of textured forms as well as improved micro-wedge flow.
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In-Cylinder Friction Reduction Using a Surface Finish Optimization Technique
TL;DR: In this article, the authors describe the importance of reducing frictional losses in internal combustion (IC) engines, and highlight a fundamental investigation of surface modification and coating and its impact on frictional performance.
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Direct measurement of piston friction of internal-combustion engines using the floating-liner principle
TL;DR: In this article, the authors use a floating-liner arrangement to measure cyclic friction and its transitory mechanisms, as well as determination of the regime of lubrication in an internal-combustion engine.
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On the boundary conditions in multi-phase flow through the piston ring-cylinder liner conjunction
Hamed Shahmohamadi,Mahdi Mohammadpour,Ramin Rahmani,Homer Rahnejat,Colin P. Garner,S.J. Howell-Smith +5 more
TL;DR: In this paper, a Navier-Stokes solution of multi-phase flow, including vapour transport, with determined realistic boundary conditions is presented, and the evaluated boundaries agree with potential flow analysis satisfying compatibility conditions, not hitherto reported in literature.
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Reducing in-cylinder parasitic losses through surface modification and coating
TL;DR: In this article, surface texturing by means of laser processing or mechanical indentation at the dead centres is used to produce local reservoirs of lubricant as well as to encourage and direct the flow of the lubricant into the contact conjunction.