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- Wells_turbine abstract "The Wells turbine is a low-pressure air turbine that rotates continuously in one direction in spite of the direction of the air flow. Its blades feature a symmetrical airfoil with its plane of symmetry in the plane of rotation and perpendicular to the air stream.It was developed for use in Oscillating Water Column wave power plants, in which a rising and falling water surface moving in an air compression chamber produces an oscillating air current. The use of this bidirectional turbine avoids the need to rectify the air stream by delicate and expensive check valve systems.Its efficiency is lower than that of a turbine with constant air stream direction and asymmetric airfoil. One reason for the lower efficiency is that symmetric airfoils have a higher drag coefficient than asymmetric ones, even under optimal conditions. Also, in the Wells turbine, the symmetric airfoil is used with a high angle of attack (i.e., low blade speed / air speed ratio), as it occurs during air velocity maxima in volatile flow. A high angle of attack causes a condition known as "stall" in which the airfoil loses lift. The efficiency of the Wells turbine in oscillating flow reaches values between 0.4 and 0.7.This simple but ingenious device was developed by Prof. Alan Arthur Wells of Queen's University Belfast in the late 1970s.".
- Wells_turbine thumbnail Wells_turbine_en.svg?width=300.
- Wells_turbine wikiPageExternalLink wave-power-animation.
- Wells_turbine wikiPageExternalLink msg363717.
- Wells_turbine wikiPageExternalLink thing:224320.
- Wells_turbine wikiPageExternalLink www.wetgen.com.
- Wells_turbine wikiPageID "11226479".
- Wells_turbine wikiPageRevisionID "590373080".
- Wells_turbine hasPhotoCollection Wells_turbine.
- Wells_turbine subject Category:Electrical_generators.
- Wells_turbine subject Category:Mechanical_engineering.
- Wells_turbine subject Category:Power_station_technology.
- Wells_turbine subject Category:Queen's_University_Belfast.
- Wells_turbine subject Category:Renewable_energy_technology.
- Wells_turbine subject Category:Turbines.
- Wells_turbine subject Category:Water_power.
- Wells_turbine type Apparatus102727825.
- Wells_turbine type Artifact100021939.
- Wells_turbine type Device103183080.
- Wells_turbine type ElectricalGenerators.
- Wells_turbine type Engine103287733.
- Wells_turbine type Equipment103294048.
- Wells_turbine type Generator103434188.
- Wells_turbine type HeatEngine103507963.
- Wells_turbine type Instrumentality103575240.
- Wells_turbine type Internal-combustionEngine103579982.
- Wells_turbine type Machine103699975.
- Wells_turbine type Motor103789946.
- Wells_turbine type Object100002684.
- Wells_turbine type PhysicalEntity100001930.
- Wells_turbine type RotaryEngine104110654.
- Wells_turbine type Turbine104498523.
- Wells_turbine type Turbines.
- Wells_turbine type Whole100003553.
- Wells_turbine comment "The Wells turbine is a low-pressure air turbine that rotates continuously in one direction in spite of the direction of the air flow. Its blades feature a symmetrical airfoil with its plane of symmetry in the plane of rotation and perpendicular to the air stream.It was developed for use in Oscillating Water Column wave power plants, in which a rising and falling water surface moving in an air compression chamber produces an oscillating air current.".
- Wells_turbine label "Turbina Wells".
- Wells_turbine label "Turbina Wells".
- Wells_turbine label "Turbine Wells".
- Wells_turbine label "Wells turbine".
- Wells_turbine label "Wells-Turbine".
- Wells_turbine label "Wellsturbine".
- Wells_turbine label "Турбина Уэльса".
- Wells_turbine sameAs Wells-Turbine.
- Wells_turbine sameAs Turbine_Wells.
- Wells_turbine sameAs Turbina_Wells.
- Wells_turbine sameAs Wellsturbine.
- Wells_turbine sameAs Turbina_Wells.
- Wells_turbine sameAs m.02r491w.
- Wells_turbine sameAs Q2296616.
- Wells_turbine sameAs Q2296616.
- Wells_turbine sameAs Wells_turbine.
- Wells_turbine wasDerivedFrom Wells_turbine?oldid=590373080.
- Wells_turbine depiction Wells_turbine_en.svg.
- Wells_turbine isPrimaryTopicOf Wells_turbine.