Search Results - "O'DOHERTY, TIM"

Development of a wave-current numerical model using Stokes 2nd Order Theory by Lloyd, Catherine, O'Doherty, Tim, Mason-Jones, Allan

“…The optimisation of a Numerical Wave Tank is proposed to accurately model the sub surface conditions generated by regular waves superimposed on a uniform…”
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Numerical investigation of shallow-water effects on hydrokinetic turbine wake recovery by El Fajri, Oumnia, Bhushan, Shanti, Thompson, David S., O'Doherty, Tim

“…Thrust, power and intermediate wake predictions obtained using resolved rotating blade with sliding mesh simulations for a hydrokinetic turbine (HKT) are…”
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Performance assessment of a tidal turbine using two flow references by Harrold, Magnus, Ouro, Pablo, O’Doherty, Tim

“…The measurement of power performance is an important procedure in the design verification and ongoing health monitoring of a tidal turbine. Standardised…”
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The impact of turbulence and turbine operating condition on the wakes of tidal turbines by Ebdon, Tim, Allmark, Matthew J., O’Doherty, Daphne M., Mason-Jones, Allan, O’Doherty, Tim, Germain, Gregory, Gaurier, Benoit

“…Before initiating a study on the interaction of multiple wakes, it is imperative that turbine wake hydrodynamics are studied in isolation. In this paper CFD…”
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The effect of hydrogen containing fuel blends upon flashback in swirl burners by Syred, Nicholas, Abdulsada, Mohammed, Griffiths, Anthony, O’Doherty, Tim, Bowen, Phil

“…Lean premixed swirl combustion is widely used in gas turbines and many other combustion Processes due to the benefits of good flame stability and blow off…”
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The development, design and characterisation of a scale model Horizontal Axis Tidal Turbine for dynamic load quantification by Allmark, Matthew, Ellis, Robert, Lloyd, Catherine, Ordonez-Sanchez, Stephanie, Johannesen, Kate, Byrne, Carl, Johnstone, Cameron, O’Doherty, Tim, Mason-Jones, Allan

“…The paper describes the development and characterisation of three 0.9 m diameter lab-scale Horizontal Axis Tidal Turbines. The blade development process has…”
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Analysis of the effects of control strategies and wave climates on the loading and performance of a laboratory scale horizontal axis tidal turbine by Martinez, Rodrigo, Ordonez-Sanchez, Stephanie, Allmark, Matthew, Lloyd, Catherine, O’Doherty, Tim, Germain, Gregory, Gaurier, Benoit, Johnstone, Cameron

“…To understand the influence of complex hydrodynamic loads on tidal turbines, laboratory testing is necessary as a first approach. Previous laboratory work…”
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Analysis of a Horizontal-Axis Tidal Turbine Performance in the Presence of Regular and Irregular Waves Using Two Control Strategies by Ordonez-Sanchez, Stephanie, Allmark, Matthew, Porter, Kate, Ellis, Robert, Lloyd, Catherine, Santic, Ivan, O’Doherty, Tim, Johnstone, Cameron

“…The flow developed on a tidal site can be characterized by combinations of turbulence, shear flows, and waves. Horizontal-axis tidal turbines are therefore…”
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A detailed study of tidal turbine power production and dynamic loading under grid generated turbulence and turbine wake operation by Allmark, Matthew, Ellis, Robert, Ebdon, Tim, Lloyd, Catherine, Ordonez-Sanchez, Stephanie, Martinez, Rodrigo, Mason-Jones, Allan, Johnstone, Cameron, O’Doherty, Tim

“…The paper presents an experimental campaign developed to contribute to the current research considering the operation of Horizontal Axis Tidal Turbines within…”
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Flume testing of passively adaptive composite tidal turbine blades under combined wave and current loading by Porter, Kate E., Ordonez-Sanchez, Stephanie E., Murray, Robynne E., Allmark, Matthew, Johnstone, Cameron M., O’Doherty, Tim, Mason-Jones, Allan, Doman, Darrel A., Pegg, Michael J.

“…The tidal energy industry is progressing rapidly, but there are still barriers to overcome to realise the commercial potential of this sector. Large magnitude…”
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Validation of Tidal Stream Turbine Wake Predictions and Analysis of Wake Recovery Mechanism by Salunkhe, Sanchit, El Fajri, Oumnia, Bhushan, Shanti, Thompson, David, O’Doherty, Daphne, O’Doherty, Tim, Mason-Jones, Allan

“…This paper documents the predictive capability of rotating blade-resolved unsteady Reynolds averaged Navier-Stokes (URANS) and Improved Delayed Detached Eddy…”
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The Development of Marine Energy Extraction by O’Doherty, Tim, Mason-Jones, Allan

“…Accompanied with an increase in world population there is a growing demand for energy from both the industrial and domestic sectors [...]…”
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THE EFFECT OF COMBUSTION INSTABILITY ON THE STRUCTURE OF RECIRCULATION ZONES IN CONFINED SWIRLING FLAMES by DAWSON, JAMES R., RODRIGUEZ-MARTINEZ, VICTOR M., SYRED, NICK, O'DOHERTY, TIM

“…A study of the destabilising effect of self-exited bulk-mode oscillations on the shape and size of recirculation zones has been carried out in a swirl…”
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A Phenomenological Study of Lab-Scale Tidal Turbine Loading under Combined Irregular Wave and Shear Flow Conditions by Allmark, Matthew, Martinez, Rodrigo, Ordonez-Sanchez, Stephanie, Lloyd, Catherine, O’Doherty, Tim, Germain, Grégory, Gaurier, Benoît, Johnstone, Cameron

“…Tidal devices are likely to faced with shear flows and subjected to various wave climates. The paper presents an experimental study of the combined impacts of…”
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Detached eddy simulation of hydrokinetic turbine wake in shallow water depths by El Fajri, Oumnia, Bowman, Joshua, Bhushan, Shanti, O'Doherty, Tim

“…Detached eddy simulations (DES) have been performed for flow over a solitary hydrokinetic turbine for two different tip-speed ratios λ = 3.64 and 6.15 and…”
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Numerical study of the effect of tip-speed ratio on hydrokinetic turbine wake recovery by El Fajri, Oumnia, Bowman, Joshua, Bhushan, Shanti, Thompson, David, O'Doherty, Tim

“…The predictive capabilities of blade-resolved unsteady Reynolds averaged Navier-Stokes (URANS) and detached eddy simulation (DES), the most commonly used…”
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Energy Yield Assessment from Ocean Currents in the Insular Shelf of Cozumel Island by Alcérreca-Huerta, Juan Carlos, Encarnacion, Job Immanuel, Ordoñez-Sánchez, Stephanie, Callejas-Jiménez, Mariana, Gallegos Diez Barroso, Gabriel, Allmark, Matthew, Mariño-Tapia, Ismael, Silva Casarín, Rodolfo, O’Doherty, Tim, Johnstone, Cameron, Carrillo, Laura

“…Marine renewables represent a promising and innovative alternative source for satisfying the energy demands of growing populations while reducing the…”
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CFD modelling of a tidal stream turbine subjected to profiled flow and surface gravity waves by Tatum, Sarah, Allmark, Matthew, Frost, Carwyn, O’Doherty, Daphne, Mason-Jones, Allan, O’Doherty, Tim

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Using Blade Element Momentum Theory to Predict the Effect of Wave-Current Interactions on the Performance of Tidal Stream Turbines by Fu, Song, Ordonez-Sanchez, Stephanie, Martinez, Rodrigo, Johnstone, Cameron, Allmark, Matthew, O’Doherty, Tim

“…The non-uniformity and dynamics of the environment tidal stream turbines need to operate within will significantly influence the durability and reliability of…”
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Validation of the dynamic load characteristics on a Tidal Stream Turbine when subjected to wave and current interaction by Lloyd, Catherine, Allmark, Matthew, Ordonez-Sanchez, Stephanie, Martinez, Rodrigo, Johnstone, Cameron, Germain, Gregory, Gaurier, Benoit, Mason-Jones, Allan, O'Doherty, Tim

“…A comparison of a tidal turbine's performance and structural loads is conducted using lab-scale numerical models and experimental testing under multiple…”
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