Search Results - "Dunnett, S J"

Phased mission modelling of systems with maintenance-free operating periods using simulated Petri nets by Chew, S.P., Dunnett, S.J., Andrews, J.D.

“…A common scenario in engineering is that of a system which operates throughout several sequential and distinct periods of time, during which the modes and…”
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Numerical investigation into the loading behaviour of filters operating in the diffusional and interception deposition regimes by Dunnett, S.J., Clement, C.F.

“…Using a previously developed theory, which allows for changes in gas flow from deposit growth, calculations are performed for deposition on an initially…”
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Critical trajectories for aerosol particles: Their determination for impaction in fibrous filters and in oscillating bubbles by Clement, C.F., Dunnett, S.J.

“…Critical trajectories for aerosol particles in a gas flow are the ones which divide an aerosol flux into different parts, for example aerosol which is, and is…”
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Dynamic Reliability Assessment of PEM Fuel Cell Systems by Vasilyev, A., Andrews, J., Dunnett, S.J., Jackson, L.M.

“…•A dynamic reliability model of a PEM fuel cell system is developed.•The model combines physical and stochastic sub-models.•The results show the influence of…”
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Use of Petri Nets to Model the Maintenance of Wind Turbines by Leigh, J. M., Dunnett, S. J.

“…With large expansion plans for the offshore wind turbine industry, there has never been a greater need for effective operations and maintenance. The two main…”
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A numerical model of fibrous filters containing deposit by Dunnett, S.J., Clement, C.F.

“…This work is aimed at developing numerical methods to model the effects that particle deposit collected by fibrous filters has upon the flow field within the…”
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Novel methodology for optimising the design, operation and maintenance of a multi-AGV system by Yan, Rundong, Dunnett, S.J., Jackson, L.M.

“…•The Coloured Petri Net (CPN) simulation models are developed to find the optimal design, operation, and maintenance strategy of a multi-AGV system.•The CPN…”
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Model-Based Research for Aiding Decision-Making During the Design and Operation of Multi-Load Automated Guided Vehicle Systems by Yan, R., Dunnett, S.J., Jackson, L.M.

“…•Multi-load AGV systems are simulated using Coloured Petri nets.•The impact of failure of multi-load AGVs on system performance is investigated.•Major factors…”
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Modeling of fluid flow in periodic cell with porous cylinder using a boundary element method by Mardanov, R.F., Dunnett, S.J., Zaripov, S.K.

“…The problem of viscous incompressible flow past a periodic array of porous cylinders (a model of flow in an aerosol filter) is solved. The approximate periodic…”
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A numerical study of the aspiration efficiency of a thin-walled sampler facing the wind for high velocity ratios by Dunnett, S.J.

“…In this work the fluid flow and particle trajectories for a thin-walled sampling probe facing the wind are considered. The flow around the sampler and into the…”
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Particle Motion in the Vicinity of a Bulky Sampling Head Operating in Calm Air by Dunnett, S. J.

“…A study is made of the aspiration of particles into a bulky sampling head with a sampling orifice located at a general point on its surface. The particles are…”
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A numerical study of the sampling efficiency of a tube sampler operating in calm air facing both vertically upwards and downwards by Dunnett, S.J, Wen, X

“…In this paper the performance of a thin-walled sampling tube operating in calm air, pointing both vertically upwards and downwards, is investigated. The…”
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A numerical study of the flow field in the vicinity of a bluff body with aspiration oriented to the flow by Dunnett, S.J.

“…Aerosol samplers, which are widely used in environmental and industrial hygiene, generally operate by withdrawing air through an orifice in their surface. An…”
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A Numerical Study of Calm Air Sampling with a Blunt Sampler by Dunnett, S. J., Wen, X., Zaripov, S. K., Galeev, R. S., Vanunina, M. V.

“…The performance of an idealized spherical sampler facing both vertically upwards and downwards in calm air is studied numerically. To describe the air flow…”
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A numerical study of the effects of loading from diffusive deposition on the efficiency of fibrous filters by Dunnett, S.J., Clement, C.F.

“…This work is aimed at developing numerical methods for calculating diffusive and interceptive deposition on fibres in fibrous filters as a deposit builds up…”
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An analytical investigation into the nature of the airflow near a spherical bluff body with suction by Dunnett, S.J.

“…Over a long period of time it has been recognised that there is a need for a greater understanding of the airflow around and into aerosol samplers. In…”
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Event-tree analysis using binary decision diagrams by Andrews, J.D., Dunnett, S.J.

“…This paper is concerned with ETA (event-tree analysis) where the branch point event causes are defined using fault trees. Attention is on the nontrivial…”
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A mathematical study of particle motion during calm air sampling by Dunnett, S.J.

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Component-based modelling of PEM fuel cells with bond graphs by Vasilyev, A., Andrews, J., Jackson, L.M., Dunnett, S.J., Davies, B.

“…A polymer electrolyte membrane (PEM) fuel cell is a power generation device that transforms chemical energy contained within hydrogen and oxygen gases into…”
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Diffusive deposition of aerosols in a fibrous filter by Clement, C.F., Dunnett, S.J.

“…Experimental deposition efficiencies for deposition from laminar flow in fibrous filters containing variable numbers of layers were obtained by Jackiewicz,…”
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