Carsten Westergaard

Carsten Westergaard

Houston, Texas, United States
5K followers 500+ connections

About

Leadership
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* Technology management, strategy plans
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Articles by Carsten

Contributions

Activity

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Experience

  • Aeromine Technologies, Inc. Graphic

    Aeromine Technologies, Inc.

    Houston, Texas, United States

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    Houston, Texas Area

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    Houston / Albuquerque

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    Austin, Texas, United States

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    Houston, Texas, United States

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    Houston / Lubbock

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    Houston, Texas Area

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    Houston, Texas Area

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    Lunderskov, Denmark

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Education

Volunteer Experience

  • Co-chair

    High School for the Performing and Visuals arts, annual print show

    - 3 years 9 months

    Education

    Co-chair and organizer at HSPVA annual print show fund raiser
    http://www.hspvaartguild.org/
    https://www.facebook.com/hspvaprintshow

Publications

  • 2010 Wind Program Peer Review Report

    Department of Energy, US

  • Quieter Wind Turbine Through Integrated Aeroacoustics Simulation

    AWEA WindPower 2010 Conference

    Other authors
  • Advanced Aerodynamic Modeling of Vortex Generators

    EWEC, European Wind Energy Conference

    The present work is focused on developing advanced computational fluid dynamic (CFD) models capable of capturing the micro-scale flow physics associated with passive vortex generators (VGs), as first documented by Taylor [1]. When used on wind turbine blades, VGs offer several potential performance benefits including increased performance in low to moderate wind speeds, and also lower noise levels. CFD is uniquely suited to investigate the performance of tiny VGs, given the extremely high…

    The present work is focused on developing advanced computational fluid dynamic (CFD) models capable of capturing the micro-scale flow physics associated with passive vortex generators (VGs), as first documented by Taylor [1]. When used on wind turbine blades, VGs offer several potential performance benefits including increased performance in low to moderate wind speeds, and also lower noise levels. CFD is uniquely suited to investigate the performance of tiny VGs, given the extremely high resolution to which the airflow around the VG can be resolved. Using CFD methods, different VG configurations can be investigated, allowing for optimization studies to be performed to maximize blade
    performance.

    Other authors
    See publication
  • Advanced Aerodynamic Modeling of Vortex generators for Wind Turbine Applications

    2010 European Wind Energy Conference (EWEC), Warsaw, Poland

    Other authors
  • Quieter Wind Turbine through Integrated Aero-acoustic Simulation

    Poster presentation at 2010 European Wind Energy Conference & Exhibition, Warsaw, Poland

    Other authors
  • Investigations on LED illumination for micro-PIV including a novel front-lit configuration

    Experiments in fluids

    In this study, we provide the first general investigation on micro-PIV with LED illumination. A number of improvements and optimizations are supplied, and in particular, we present a novel front-lit configuration. We have used this front-lit configuration to perform micro-PIV measurements around a 50 micro meter squared pillar in a micro-channel with rectangular cross section, in both fluorescent mode and scattered mode. A comparison between the two modes is supplied, showing that both…

    In this study, we provide the first general investigation on micro-PIV with LED illumination. A number of improvements and optimizations are supplied, and in particular, we present a novel front-lit configuration. We have used this front-lit configuration to perform micro-PIV measurements around a 50 micro meter squared pillar in a micro-channel with rectangular cross section, in both fluorescent mode and scattered mode. A comparison between the two modes is supplied, showing that both recording techniques are feasible with LED illumination.

    Other authors
    See publication
  • Micro particle-image velocimetry of bead suspensions and blood flows

    Experiments in Fluids

    We present and discuss velocity profiles of microflows obtained by micro particle-image velocimetry in a transmission setup. We have measured suspensions of beads in water and on human blood, using the red blood cells as a natural particle seeding. The limitations imposed by our optical system on the spatial resolution normal to the focal plane, the so-called focal depth, have also been analyzed. The first direct observations of the influence of the focal depth on the observed velocity profiles…

    We present and discuss velocity profiles of microflows obtained by micro particle-image velocimetry in a transmission setup. We have measured suspensions of beads in water and on human blood, using the red blood cells as a natural particle seeding. The limitations imposed by our optical system on the spatial resolution normal to the focal plane, the so-called focal depth, have also been analyzed. The first direct observations of the influence of the focal depth on the observed velocity profiles are presented. Good agreement is obtained between observations and calculated profiles modified by the finite focal depth through a weight function.

    Other authors
    See publication
  • Flow Mapping of a Jet in Crossflow with Stereoscopic PIV

    Journal of Visualization

    Stereoscopic Particle Image Velocimetry (PIV) has been used to make a three-dimensional flow mapping of a jet in crossflow. The Reynolds number based on the free stream velocity and the jet diameter was nominally 2400. A jet-to-crossflow velocity ratio of 3.3 was used. Details of the formation of the counter rotating vortex pair found behind the jet are shown. The vortex pair results in two regions with strong reversed velocities behind the jet trajectory. Regions of high turbulent kinetic…

    Stereoscopic Particle Image Velocimetry (PIV) has been used to make a three-dimensional flow mapping of a jet in crossflow. The Reynolds number based on the free stream velocity and the jet diameter was nominally 2400. A jet-to-crossflow velocity ratio of 3.3 was used. Details of the formation of the counter rotating vortex pair found behind the jet are shown. The vortex pair results in two regions with strong reversed velocities behind the jet trajectory. Regions of high turbulent kinetic energy are identified. The signature of the unsteady shear layer vortices is found in the mean vorticity field.

    Other authors
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  • Soft Rotor Design for Flexible Turbines

    The Europrean Commission JOULEIII, JOU3-CT95-0062

    The project has consisted in development and testing of a two-bladed soft rotor for an existing 15 kW flexible wind turbine. The new concept is characterised as a free yawing down wind turbine with nacelle tilting flexibility and a two-bladed teetering rotor with three-point supported blades with build-in structural couplings. The power and the loads are controlled by active stall and active coning.

    Other authors
    • Flemming Rasmussen
    • Thirstrup, J.T
    • Vølund, P
    • Leconte, P
    • Szechenyi, E
    See publication
  • Wind turbine blades equipped with Air-jet vortex generators: Full scale verification of blades optimized for increased performance

    EWEC, European Wind Energy Conference

    In a pilot project, the blade set of a 150 kW stall regulated wind turbine was modified with air jet vortex generators and tested at full scale. This was done primarily to increase the energy yield of the wind turbine by reducing energy loss in the region of the power curve ' knee', but also to allow a degree of power regulation in high winds. The current project's aims are to model the previous work numerically and so produce a low-cost tool for optimizing a given blade. The numerical model…

    In a pilot project, the blade set of a 150 kW stall regulated wind turbine was modified with air jet vortex generators and tested at full scale. This was done primarily to increase the energy yield of the wind turbine by reducing energy loss in the region of the power curve ' knee', but also to allow a degree of power regulation in high winds. The current project's aims are to model the previous work numerically and so produce a low-cost tool for optimizing a given blade. The numerical model will subsequently be verified by wind tunnel tests and a full scale demonstration with a 600 kW machine.

    Other authors
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Patents

  • Bladeless wind or water turbine (FLUID FLOW ENERGY EXTRACTION SYSTEM AND METHOD RELATED THERETO)

    Issued US WO2015US53002 / US201462057325P

    Disclosed is a system and method for both consumer and utility scale energy extraction from flow-based energy sources. The passive system may utilize directing perforations on a surface in order to create and air jet vortex generators. Alternatively the system may provide for flow through discrete orifices aligned with the span of an aerodynamic assembly in a co- flow direction, utilizing a Coanda effect. Further additional configurations include directing flow through a perforated surface skin…

    Disclosed is a system and method for both consumer and utility scale energy extraction from flow-based energy sources. The passive system may utilize directing perforations on a surface in order to create and air jet vortex generators. Alternatively the system may provide for flow through discrete orifices aligned with the span of an aerodynamic assembly in a co- flow direction, utilizing a Coanda effect. Further additional configurations include directing flow through a perforated surface skin that is near the trailing edge on the suction side. Even further are embodiments for blowing air directly out of the trailing edge of an airfoil. The disclosed systems and methods support a wide variety of scenarios for fluid flow energy extraction, such as wind or water flow, as well as for related products and services.

    See patent
  • WIND TURBINE ROTOR BLADE

    Issued US US 2012/0068469 A1

    A wind turbine blade extending in a longitudinal direction from a root end to a tip end and defining an aerodynamic airfoil cross-section between a leading edge and a trailing edge in a chordwise direction transverse to the longitudinal direction, the aerodynamic airfoil cross-section having an effective camber in the chordwise direction; the wind turbine blade comprising: blade body; first device for modifying the aerodynamic surface or shape of the blade, the position and/or movement of the…

    A wind turbine blade extending in a longitudinal direction from a root end to a tip end and defining an aerodynamic airfoil cross-section between a leading edge and a trailing edge in a chordwise direction transverse to the longitudinal direction, the aerodynamic airfoil cross-section having an effective camber in the chordwise direction; the wind turbine blade comprising: blade body; first device for modifying the aerodynamic surface or shape of the blade, the position and/or movement of the first device relative to the blade body being controlled by a first actuation mechanism; second device for modifying the effective camber of the airfoil cross section; herein, in use, the first device modifies the aerodynamic surface or shape of the blade at a frequency up to a first maximum frequency and the second device modifies the effective camber of the airfoil cross section at a frequency up to a second maximum frequency, the second maximum frequency being higher than the first maximum

    Other inventors
  • Control of a Wind Turbine Rotor during a stop process using pitch and a surface altering device

    Issued EU EP 2 389 510 B1

    A method for controlling a wind turbine during a stop process thereof from an operating state to a stand-still state, wherein the wind turbine comprises a tower and a rotor with a plurality of pitchable rotor blades, each blade comprising a main blade body and at least one trailing edge flap, which is movable with respect to the main blade body in order to alter the aerodynamic surface of the blade. In the operating state, the tower is deflected in a downwind direction due to the aerodynamic…

    A method for controlling a wind turbine during a stop process thereof from an operating state to a stand-still state, wherein the wind turbine comprises a tower and a rotor with a plurality of pitchable rotor blades, each blade comprising a main blade body and at least one trailing edge flap, which is movable with respect to the main blade body in order to alter the aerodynamic surface of the blade. In the operating state, the tower is deflected in a downwind direction due to the aerodynamic thrust force on the rotor, and the method for controlling the stop process comprises the steps of moving the at least one trailing edge flap towards the suction side of the blade in order to alleviate the aerodynamic load on the rotor, whereby the tower starts to move forward in the upwind direction, and subsequently pitching the blades to further alleviate the aerodynamic load on the rotor.

    Other inventors
    See patent
  • Method and system for forecasting wind energy

    Filed US US20100321961P

    A method for forecasting wind energy production is disclosed. The method includes collecting power data indicative of power output from a set of wind energy installations with a first wind energy installation at a first site and a second wind energy installation at a second site, and estimating the available power output at a forecasting site located at a geographic position. The estimating is based on power data from the set of wind energy installations by projecting the power data towards the…

    A method for forecasting wind energy production is disclosed. The method includes collecting power data indicative of power output from a set of wind energy installations with a first wind energy installation at a first site and a second wind energy installation at a second site, and estimating the available power output at a forecasting site located at a geographic position. The estimating is based on power data from the set of wind energy installations by projecting the power data towards the future and/or the geographic position of the forecasting site. Further disclosed is a method for scheduling wind energy production for an electricity grid and a wind energy production forecasting system configured for forecasting output power of a wind energy installation.

  • Enhancing stiffness of wind turbine blades

    Filed US WO2010EP00368

    Edgewise stiffness of a wind turbine blade is enhanced by arranging a tension element between anchor points at the ends of a load bearing member in the turbine blade such as a spar or a beam. The tension element is spaced away from the load bearing member on the trailing edge side of the load bearing member by struts and acts as a suspension cable. Several tension elements may be used and a similar tension element may be arranged on the leading edge side of the load bearing member.

  • Wind turbine blade and method for controlling the load on a blade

    Filed EU EP2222955

    Wind turbine blade (1) comprising a blade body (2) and lift-regulating means (3, 7) adapted for movement in relation to the blade body (2) by at least one actuation means (4) controlled by an actuation controller (5), wherein the actuation controller (5) controls a setting of the lift-regulating means (3, 7) based on an input from a sensor (6), wherein the sensor (6) is a force sensor adapted for sensing a force from a wind flow acting on the lift-regulating means (3, 7), whereby a wind turbine…

    Wind turbine blade (1) comprising a blade body (2) and lift-regulating means (3, 7) adapted for movement in relation to the blade body (2) by at least one actuation means (4) controlled by an actuation controller (5), wherein the actuation controller (5) controls a setting of the lift-regulating means (3, 7) based on an input from a sensor (6), wherein the sensor (6) is a force sensor adapted for sensing a force from a wind flow acting on the lift-regulating means (3, 7), whereby a wind turbine blade with fast-responding lift-regulating means is provided.

    Other inventors
  • A METHOD FOR IMPROVING LARGE ARRAY WIND PARK POWER PERFORMANCE THROUGH ACTIVE WAKE MANIPULATION REDUCING SHADOW EFFECTS

    US 61/534,064 (US)

    Embodiments of the present invention provide methods and apparatus for increasing turbulent mixing in the wake of at least one wind turbine. Doing so, increases efficiency of a wind turbine located in the wake by transferring energy to the wake that was lost when the wind passed through the upwind turbine. Turbulent mixing may be increased by changing the induction factor for a rotor by, for example, altering the pitch of the blades, the RPMs of the rotor, or the yaw of the nacelle. These…

    Embodiments of the present invention provide methods and apparatus for increasing turbulent mixing in the wake of at least one wind turbine. Doing so, increases efficiency of a wind turbine located in the wake by transferring energy to the wake that was lost when the wind passed through the upwind turbine. Turbulent mixing may be increased by changing the induction factor for a rotor by, for example, altering the pitch of the blades, the RPMs of the rotor, or the yaw of the nacelle. These techniques may be static or dynamically changing. Further, the different induction factors for a plurality of wind turbines may be synchronized according to a predetermined pattern to further increase turbulent mixing.

    See patent
  • Wind turbine blade and method for manufacturing a wind turbine blade with vortex generators

    EU EP20110193600 20111214

    A wind turbine for generating electrical energy may include a wind turbine blade including a plurality of vortex generators integrally formed in the outer surface of the blade. The vortex generator includes a first component that defines a portion of the outer surface of the blade and a second component defining the shape of the vortex generator and at least partially surrounded by the first component. A method of manufacturing the wind turbine blade includes disposing a first plurality of…

    A wind turbine for generating electrical energy may include a wind turbine blade including a plurality of vortex generators integrally formed in the outer surface of the blade. The vortex generator includes a first component that defines a portion of the outer surface of the blade and a second component defining the shape of the vortex generator and at least partially surrounded by the first component. A method of manufacturing the wind turbine blade includes disposing a first plurality of layers of structural material over a mold main body and a removable insert member with a shaped cavity. A shaped plug is then pressed into the shaped cavity, and a second plurality of layers of structural material is disposed over the plug and the mold main body to complete manufacture of a wind turbine blade with a vortex generator

    Other inventors
    See patent

Honors & Awards

  • Eureka! Awards

    Vestas Wind Systems A/S

Languages

  • English

    Native or bilingual proficiency

  • Danish

    Native or bilingual proficiency

  • French

    Professional working proficiency

  • German

    Professional working proficiency

Organizations

  • The Wind Alliance

    Technology Chair

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    Instrumental work in starting up the wind alliance, organizing the structure and developing a framework for collaboration between industry, academia and government

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