A Novel Design Of Composite Water Turbine Using CFD

Wang, Ji Feng; Piechna, Janusz; Müller, Norbert

doi:10.1016/s1001-6058(11)60213-8

Cited by 44 publications

(21 citation statements)

References 10 publications

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“…Figures and also display a homogeneous distribution of the pressure all over the wingspan axis; this data is relevant in a turbine hydrofoil, whose chord measurement and camber angle are not constant along the blade. It is important to point out that numerical simulation shows no boundary layer detachment, and also displays a smooth and continuous pressure distribution all over the upper and lower surfaces of the turbine blades.…”

Section: Resultsmentioning

confidence: 99%

Fluid dynamic design of an axial rotor for hydrokinetic riverbed turbine‐improvement introduced by a high lift foil profile

Oller

Nallim

2016

Env Prog and Sustain Energy

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Section: Resultsmentioning

confidence: 99%

Fluid dynamic design of an axial rotor for hydrokinetic riverbed turbine‐improvement introduced by a high lift foil profile

Oller

Nallim

2016

Env Prog and Sustain Energy

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“…They represent mathematical statements of the conservation laws of physics, where the following physical laws are adopted (Wang et al, 2012):…”

Section: Numerical Methods and Computational Modelingmentioning

confidence: 99%

Numerical investigation of the power generation of a ducted composite material marine current turbine

Wang

Piechna

Müller

2013

J. Zhejiang Univ. Sci. A

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Abstract:In the hostile and highly corrosive marine environment, advanced composite materials can be used in marine current turbines due to their high strength-to-weight ratios and excellent resistance to corrosion. A composite material marine current turbine (CMMCT), which has significant advantages over traditional designs, has been developed and investigated numerically. A substantial improvement in turbine performance is achieved by placement of a duct to concentrate the energy. Computational fluid dynamics (CFD) results show that the extracted power of a ducted CMMCT can be three to four times the power extracted by a bare turbine of the same turbine area. The results provide an insight into the hydrodynamic design and operation of a CMMCT used to shorten the design period and improve technical performance.

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“…The meshing sizes in the calculation domain are strictly controlled, and particular refinements have been made. In all CFD simulations, a mesh dependence test is crucial to check the convergence of the computational results with respect to spatial resolution [17]. The mesh dependence test is performed by refining the mesh to its final configuration.…”

Section: Geometry Modelling and Grid Pre-processingmentioning

confidence: 99%

Analysis of a Novel Nozzle Used for Pulse Jet Filtration Using CFD Simulation Method

Li¹,

Li²,

Choi³

2016

Int. j. simul. model.

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The nozzle is one of the most important components of pulse jet systems. The optimization of a pulse jet system and its optimal operation condition are barely known because of the complicated turbulent mixing, compressibility effects, and even flow unsteadiness, which are generated in the nozzle system. In this study, a three-dimensional numerical model of a pulse jet system was established to analyse its operation characteristics by using computational fluid dynamics (CFD). The CFD simulation results were validated with existing experimental data. The flow dynamics of the pulse jet gas around the cleaning nozzle was numerically explored to predict the effects of nozzle shape and dimensions on the pulse cleaning performance in terms of pressure distribution, velocity distribution, primary mass, secondary mass, and entrainment ratio. The influences of the convergent ratio in the narrow (R ch ) and wide (R cw ) directions, as well as that of the divergent ratio (R dw ) in the wide direction, for the nozzle were discussed. Results show that the flow dynamics are most sensitive to changes of R ch among of R ch , R cw , and R dw , The entrainment ratio (R en ) increases with R ch , R dw , and R dw . The primary and secondary masses decrease with increasing R ch and R dw . The primary and secondary masses increase with R dw . The conclusions obtained in the study provide guidelines for designing a rectangular slot nozzle for pulse jet cleaning of the filter elements.

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A Novel Design Of Composite Water Turbine Using CFD

Cited by 44 publications

References 10 publications

Fluid dynamic design of an axial rotor for hydrokinetic riverbed turbine‐improvement introduced by a high lift foil profile

Fluid dynamic design of an axial rotor for hydrokinetic riverbed turbine‐improvement introduced by a high lift foil profile

Numerical investigation of the power generation of a ducted composite material marine current turbine

Analysis of a Novel Nozzle Used for Pulse Jet Filtration Using CFD Simulation Method

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