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A preliminary approach to simulating cyclic variability in a port fuel injection spark ignition engine
Differences in the combustion process from one cycle to the next, termed cyclic variations, are an important feature of spark ignition engines. These variations cause fluctuations in the work output of the engine and can...
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A preliminary approach to simulating cyclic variability in a port fuel injection spark ignition engine
Differences in the combustion process from one cycle to the next, termed cyclic variations, are an important feature of spark ignition engines. These variations cause fluctuations in the work output of the engine and can...
Published by:
Development and Validation of a Model for Centrifugal Compressors in Reversed Flow Regimes

Turbochargers are widely used to help reduce the environmental impact of automotive engines. However, a limiting factor for turbochargers is compressor surge. Surge is an instability that induces pressure and flow...

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Development and Validation of a Model for Centrifugal Compressors in Reversed Flow Regimes

Turbochargers are widely used to help reduce the environmental impact of automotive engines. However, a limiting factor for turbochargers is compressor surge. Surge is an instability that induces pressure and flow...

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S2HM
Individuals in professions such as dentistry, aircraft maintenance, and frequent computer usage, are susceptible to developing degenerative changes in the cervical spine due to poor neck posture over time. This can eventually...
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Idalopirdine
This has already been a disheartening year for research into drug treatments for dementia and Alzheimer’s disease. Negative results have been posted for phase III clinical trials of two 5-hydroxytryptamine-6 receptor (5-HT6)...
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Dynamical phase transitions in supercooled liquids
C.J. Fullerton, R.L. Jack
Jun 14, 2013
We study dynamical phase transitions in a model supercooled liquid. These transitions occur in ensembles of trajectories that are biased towards low (or high) dynamical activity. We compare two different measures of activity...
Published by:
S2HM
Individuals in professions such as dentistry, aircraft maintenance, and frequent computer usage, are susceptible to developing degenerative changes in the cervical spine due to poor neck posture over time. This can eventually...
Published by:
Modelling and heuristic control of a parallel hybrid electric vehicle
Hybrid electric vehicles offer the potential for fuel consumption improvements when compared with conventional vehicle powertrains. The fuel consumption benefits which can be realised when utilising the hybrid electric vehicle...
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Investigation into the benefits of reduced oil flows in internal combustion engines
The engine lubrication system is a vital element for engine health but causes a parasitic load on the engine which increases the fuel consumption: this load can be reduced by matching the oil flow to lubricating requirements...
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Investigating amorphous order in stable glasses by random pinning
C.J. Fullerton, R.L. Jack
Jun 27, 2014
We investigate stable glassy states that are found when glass-forming liquids are biased to lower than average dynamical activity. By pinning the positions of randomly chosen particles, we show that many-body correlations in...
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The Ursinus Weekly, April 28, 1913
Lary Baker Small
Jan 01, 0001
Defeat - victory: Listless playing and many errors responsible for two defeats at hands of Princeton and Villanova, but a brace against Delaware wins 7-1 victory Society notes Christian associations Resolutions Reserves play...
Published by: Ursinus College
Scaling laws for localised states in a nonlocal amplitude equation
It is well known that, although a uniform magnetic field inhibits the onset of small amplitude thermal convection in a layer of fluid heated from below, isolated convection cells may persist if the fluid motion within them is...
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Modelling and heuristic control of a parallel hybrid electric vehicle
Hybrid electric vehicles offer the potential for fuel consumption improvements when compared with conventional vehicle powertrains. The fuel consumption benefits which can be realised when utilising the hybrid electric vehicle...
Published by:
Scaling laws for localised states in a nonlocal amplitude equation
It is well known that, although a uniform magnetic field inhibits the onset of small amplitude thermal convection in a layer of fluid heated from below, isolated convection cells may persist if the fluid motion within them is...
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Investigating amorphous order in stable glasses by random pinning
C.J. Fullerton, R.L. Jack
Jun 27, 2014
We investigate stable glassy states that are found when glass-forming liquids are biased to lower than average dynamical activity. By pinning the positions of randomly chosen particles, we show that many-body correlations in...
Published by:
Dynamical phase transitions in supercooled liquids
C.J. Fullerton, R.L. Jack
Jun 14, 2013
We study dynamical phase transitions in a model supercooled liquid. These transitions occur in ensembles of trajectories that are biased towards low (or high) dynamical activity. We compare two different measures of activity...
Published by:
Dynamic modelling of diesel engine emissions using the parametric Volterra series
The design of powertrain controllers relies on the availability of data-driven models of the emissions formation from internal-combustion engines. Typically these are in the form of tables or statistical regression models based...
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Critical evaluation of on-engine fuel consumption measurement

To enable continued development and facilitate the adoption of new internal combustion engine technologies, the accuracy and repeatability of measurement methods used for verification need to be improved upon. A variety of...

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Novel approaches to improve the gas exchange process of downsized turbocharged spark-ignition engines
Bo Hu, Sam Akehurst, Chris Brace
Aug 01, 2016

Engine downsizing, which is the use of a smaller engine that provides the power of a larger engine, is now considered a mega-trend for the internal combustion engine market. It is usually achieved using one or more boosting...

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Modelling the performance of a continuously variable supercharger drive system

This paper details a simulation-based investigation into a novel forced-induction boosting system with a centrifugal-type supercharger driven from the engine crankshaft via a continuously variable transmission (CVT). This...

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Sensitivity of bistable laminates to uncertainties in material properties, geometry and environmental conditions
Under certain conditions asymmetric composite laminates can have a bistable response to mechanical loading. A transition between the two stable states provides opportunities to produce large deflections or shape changes from...
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