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公开(公告)号：US08460779B2
公开(公告)日：2013-06-11
申请号：US13075795
申请日：2011-03-30
CPC分类号： B64C21/10 , B64C2230/26 , F15D1/004 , Y02T50/166 , Y10T428/24479 , Y10T428/2457 , Y10T428/24744
摘要： A fluid dynamic structure includes a surface and a microstructure mounted on the surface. The microstructure is defined by a plurality of peaks and valleys (i.e., riblets) and includes a transition region in which each peak and valley changes from a first profile to a second profile along a chord length of the structure. The peaks and/or valleys may have a variable dimension along the length of the microstructure. The peaks and valleys can be non-linear along the chord length and have a smooth transition from the first profile to the second profile. The different profiles of the microstructure are optimized to reduce noise generated by turbulent fluid flow across the structure.
摘要翻译： 流体动力学结构包括安装在表面上的表面和微结构。 微结构由多个峰和谷（即，肋）限定，并且包括其中每个峰和谷沿着结构的弦长从第一轮廓变化到第二轮廓的过渡区域。 峰和/或谷可以沿着微结构的长度具有可变的尺寸。 峰和谷可以沿着弦长度是非线性的，并且具有从第一轮廓到第二轮廓的平滑过渡。 微结构的不同轮廓被优化，以减少通过结构的湍流流体产生的噪声。
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公开(公告)号：US20110262705A1
公开(公告)日：2011-10-27
申请号：US13075795
申请日：2011-03-30
IPC分类号： B32B3/00
CPC分类号： B64C21/10 , B64C2230/26 , F15D1/004 , Y02T50/166 , Y10T428/24479 , Y10T428/2457 , Y10T428/24744
摘要： A fluid dynamic structure includes a surface and a microstructure mounted on the surface. The microstructure is defined by a plurality of peaks and valleys (i.e., riblets) and includes a transition region in which each peak and valley changes from a first profile to a second profile along a chord length of the structure. The peaks and/or valleys may have a variable dimension along the length of the microstructure. The peaks and valleys can be non-linear along the chord length and have a smooth transition from the first profile to the second profile. The different profiles of the microstructure are optimized to reduce noise generated by turbulent fluid flow across the structure.
摘要翻译： 流体动力学结构包括安装在表面上的表面和微结构。 微结构由多个峰和谷（即，肋）限定，并且包括其中每个峰和谷沿着结构的弦长从第一轮廓变化到第二轮廓的过渡区域。 峰和/或谷可以沿着微结构的长度具有可变的尺寸。 峰和谷可以沿着弦长度是非线性的，并且具有从第一轮廓到第二轮廓的平滑过渡。 微结构的不同轮廓被优化，以减少通过结构的湍流流体产生的噪声。
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公开(公告)号：US07901189B2
公开(公告)日：2011-03-08
申请号：US11798377
申请日：2007-05-14
申请人： Anurag Gupta , Thierry Maeder
发明人： Anurag Gupta , Thierry Maeder
IPC分类号： F01D5/14
CPC分类号： F03D1/0675 , F05B2260/96 , F05B2280/4003 , F05C2225/00 , Y02E10/721 , Y10S416/50
摘要： Low-noise wind turbine blades are provided wherein metallic and/or polymeric cellular materials that are capable of bearing directional loads are used in the construction of wind turbine blade parts or entire sections. The use of such materials influences the air flow over them in such a way that the resulting boundary-layer turbulence is damped in a controlled way, thus weakening the noise scattering mechanism at the trailing edge, and the scattered acoustic waves are absorbed and attenuated by the material acting as an acoustic liner.
摘要翻译： 提供了低噪声风力涡轮机叶片，其中能够承载方向负载的金属和/或聚合物多孔材料用于风力涡轮机叶片部件或整个部分的构造中。 这种材料的使用影响了它们之间的空气流动，使得所得到的边界层湍流以受控的方式被衰减，从而削弱了后缘处的噪声散射机制，并且散射的声波被吸收和衰减 作为声学衬垫的材料。
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公开(公告)号：US20080286110A1
公开(公告)日：2008-11-20
申请号：US11798377
申请日：2007-05-14
申请人： Anurag Gupta , Thierry Maeder
发明人： Anurag Gupta , Thierry Maeder
IPC分类号： F03D11/00
CPC分类号： F03D1/0675 , F05B2260/96 , F05B2280/4003 , F05C2225/00 , Y02E10/721 , Y10S416/50
摘要： Low-noise wind turbine blades are provided wherein metallic and/or polymeric cellular materials that are capable of bearing directional loads are used in the construction of wind turbine blade parts or entire sections. The use of such materials influences the air flow over them in such a way that the resulting boundary-layer turbulence is damped in a controlled way, thus weakening the noise scattering mechanism at the trailing edge, and the scattered acoustic waves are absorbed and attenuated by the material acting as an acoustic liner.
摘要翻译： 提供了低噪声风力涡轮机叶片，其中能够承载方向负载的金属和/或聚合物多孔材料用于风力涡轮机叶片部件或整个部分的构造中。 这种材料的使用影响了它们之间的空气流动，使得所得到的边界层湍流以受控的方式被衰减，从而削弱了后缘处的噪声散射机制，并且散射的声波被吸收和衰减 作为声学衬垫的材料。
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公开(公告)号：US20070033922A1
公开(公告)日：2007-02-15
申请号：US11200616
申请日：2005-08-10
申请人： Ramons Reba , Brian Wake , Satish Narayanan , Thierry Maeder
发明人： Ramons Reba , Brian Wake , Satish Narayanan , Thierry Maeder
IPC分类号： F02K1/38
CPC分类号： F02K1/40 , F02K1/386 , F02K1/46 , F05D2250/611 , F05D2250/70 , F05D2260/96
摘要： A nozzle for a gas turbine engine is provided with undulations on a core and/or fan exhaust flow nozzle. An annular wall defines a fluid flow passage and includes a base portion and an adjoining exit portion. The base portion is typically generally frustoconical in shape and includes an arcuate contour in an axial direction. The exit portion includes undulations in a generally radial direction that provide lobes and troughs each respectively including trailing edges. One of the lobe and trough trailing edges are recessed from the other of the lobe and trough trailing edges in a generally axial direction. The other of the lobe and trough trailing edges form apexes with the apexes provided on tabs. The troughs extend radially inward in the axial direction towards the trough trailing edges.
摘要翻译： 用于燃气涡轮发动机的喷嘴在芯和/或风扇排气流喷嘴上设置有起伏。 环形壁限定流体流动通道并且包括基部和相邻的出口部分。 基部通常在形状上通常为截头圆锥形，并且在轴向方向上包括弧形轮廓。 出口部分包括在大致径向方向上的波纹，其提供每个分别包括后缘的波瓣和波谷。 叶片和槽的后缘中的一个在大致轴向方向上从另一个叶片和槽的后缘凹入。 另一个叶片和槽尾缘形成顶点，顶点设在翼片上。 槽沿着轴向朝向槽的后缘径向向内延伸。
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6.发明授权Method and apparatus for measuring air flow condition at a wind turbine blade 有权用于测量风力涡轮机叶片上的空气流动状态的方法和装置公开(公告)号：US08408871B2
公开(公告)日：2013-04-02
申请号：US12138776
申请日：2008-06-13
申请人： Stefan Herr , Ryan Michael Leclair , Christopher Winslow , Alexander Simpson , Carlos Haertel , Thierry Maeder
发明人： Stefan Herr , Ryan Michael Leclair , Christopher Winslow , Alexander Simpson , Carlos Haertel , Thierry Maeder
IPC分类号： F01D7/001
CPC分类号： F03D7/0224 , F03D17/00 , F05B2270/321 , F05B2270/324 , F05B2270/328 , Y02E10/723
摘要： A method and an apparatus for measuring an air flow at an airfoil surface are provided, wherein at least one pressure sensor adapted to detect an air flow associated with a rotor blade surface and a pressure transducer which converts the detected air flow into an electrical signal indicating the air flow are provided. The pressure sensor is arranged within the boundary layer of the air flow at the airfoil surface such that the boundary layer profile may be determined from the electrical signal. The air flow sensor is adapted for rotor blades of a wind turbine to assist in adjusting a pitch angle of the rotor blades.
摘要翻译： 提供了一种用于测量翼型表面上的空气流量的方法和装置，其中至少一个适于检测与转子叶片表面相关联的气流的压力传感器和压力传感器，该压力传感器将检测到的空气流转换成指示 提供气流。 压力传感器被布置在翼型表面处的空气流的边界层内，使得边界层轮廓可以根据电信号确定。 空气流量传感器适用于风力涡轮机的转子叶片，以帮助调节转子叶片的桨距角。
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公开(公告)号：US07543452B2
公开(公告)日：2009-06-09
申请号：US11200616
申请日：2005-08-10
IPC分类号： F02K1/00
CPC分类号： F02K1/40 , F02K1/386 , F02K1/46 , F05D2250/611 , F05D2250/70 , F05D2260/96
摘要： A nozzle for a gas turbine engine is provided with undulations on a core and/or fan exhaust flow nozzle. An annular wall defines a fluid flow passage and includes a base portion and an adjoining exit portion. The base portion is typically generally frustoconical in shape and includes an arcuate contour in an axial direction. The exit portion includes undulations in a generally radial direction that provide lobes and troughs each respectively including trailing edges. One of the lobe and trough trailing edges are recessed from the other of the lobe and trough trailing edges in a generally axial direction. The other of the lobe and trough trailing edges form apexes with the apexes provided on tabs. The troughs extend radially inward in the axial direction towards the trough trailing edges.
摘要翻译： 用于燃气涡轮发动机的喷嘴在芯和/或风扇排气流喷嘴上设置有起伏。 环形壁限定流体流动通道并且包括基部和相邻的出口部分。 基部通常在形状上通常为截头圆锥形，并且在轴向方向上包括弧形轮廓。 出口部分包括在大致径向方向上的波纹，其提供每个分别包括后缘的波瓣和波谷。 叶片和槽的后缘中的一个在大致轴向方向上从另一个叶片和槽的后缘凹入。 另一个叶片和槽尾缘形成顶点，顶点设在翼片上。 槽沿着轴向朝向槽的后缘径向向内延伸。
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8.发明申请METHOD AND APPARATUS FOR MEASURING AIR FLOW CONDITION AT A WIND TURBINE BLADE 有权用于测量风力涡轮机叶片上的空气流动条件的方法和装置公开(公告)号：US20090311096A1
公开(公告)日：2009-12-17
申请号：US12138776
申请日：2008-06-13
申请人： Stefan Herr , Ryan Michael Leclair , Christopher Winslow , Alexander Simpson , Carlos Haertel , Thierry Maeder
发明人： Stefan Herr , Ryan Michael Leclair , Christopher Winslow , Alexander Simpson , Carlos Haertel , Thierry Maeder
IPC分类号： F03D7/00
CPC分类号： F03D7/0224 , F03D17/00 , F05B2270/321 , F05B2270/324 , F05B2270/328 , Y02E10/723
摘要： A method and an apparatus for measuring an air flow at an airfoil surface are provided, wherein at least one pressure sensor adapted to detect an air flow associated with a rotor blade surface and a pressure transducer which converts the detected air flow into an electrical signal indicating the air flow are provided. The pressure sensor is arranged within the boundary layer of the air flow at the airfoil surface such that the boundary layer profile may be determined from the electrical signal. The air flow sensor is adapted for rotor blades of a wind turbine to assist in adjusting a pitch angle of the rotor blades.
摘要翻译： 提供了一种用于测量翼型表面上的空气流量的方法和装置，其中至少一个适于检测与转子叶片表面相关联的气流的压力传感器和压力传感器，该压力传感器将检测到的空气流转换成指示 提供气流。 压力传感器被布置在翼型表面处的空气流的边界层内，使得边界层轮廓可以根据电信号确定。 空气流量传感器适用于风力涡轮机的转子叶片，以帮助调节转子叶片的桨距角。
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公开(公告)号：US07114323B2
公开(公告)日：2006-10-03
申请号：US10794968
申请日：2004-03-05
申请人： Robert Schlinker , Satish Narayanan , Wesley K. Lord , Gregory A. Kohlenberg , Ramons Reba , John Simonich , Marios C. Soteriou , Thierry Maeder
发明人： Robert Schlinker , Satish Narayanan , Wesley K. Lord , Gregory A. Kohlenberg , Ramons Reba , John Simonich , Marios C. Soteriou , Thierry Maeder
摘要： A system for reducing jet noise emission from an internally mixed gas turbine engine exhaust, comprising a fan/core flow mixer having a plurality of mixer lobes and a common flow nozzle having an equal number of tabs located along a circumferential edge of an aft end of the nozzle. There is a predetermined clocking relationship between the plurality of mixer lobes and the plurality of nozzle tabs that results in reduced exhaust noise emission, most evident in the lower frequency range. A method for reducing jet noise emission from an internally mixed gas turbine engine exhaust comprises selectively aligning a circumferential distribution of a mixed flow vorticity field produced by a fan/core mixer with a circumferentially distributed exhaust flow vorticity field produced by a modified common flow nozzle at an exit plane of the engine exhaust.
摘要翻译： 一种用于减少来自内部混合燃气涡轮发动机排气的喷射噪声发射的系统，包括具有多个混合器叶片的风扇/芯流混合器和具有相同数量的翼片的公共流动喷嘴，所述翼片沿着沿着 喷嘴。 在多个混合器叶片和多个喷嘴翼片之间存在预定的时钟关系，其导致减少的排气噪声发射，在较低的频率范围中最明显。 一种用于减少内部混合燃气涡轮发动机废气排放的喷射噪声的方法包括：选择性地将由风扇/核心混合器产生的混合涡流场的周向分布与由改进的公共流动喷嘴产生的周向分布的排气涡流场对齐 发动机排气口的出口面。
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公开(公告)号：US20050193716A1
公开(公告)日：2005-09-08
申请号：US10794968
申请日：2004-03-05
申请人： Robert Schlinker , Satish Narayanan , Wesley Lord , Gregory Kohlenberg , Ramons Reba , John Simonich , Marios Soteriou , Thierry Maeder
发明人： Robert Schlinker , Satish Narayanan , Wesley Lord , Gregory Kohlenberg , Ramons Reba , John Simonich , Marios Soteriou , Thierry Maeder
摘要： A system for reducing jet noise emission from an internally mixed gas turbine engine exhaust, comprising a fan/core flow mixer having a plurality of mixer lobes and a common flow nozzle having an equal number of tabs located along a circumferential edge of an aft end of the nozzle. There is a predetermined clocking relationship between the plurality of mixer lobes and the plurality of nozzle tabs that results in reduced exhaust noise emission, most evident in the lower frequency range. A method for reducing jet noise emission from an internally mixed gas turbine engine exhaust comprises selectively aligning a circumferential distribution of a mixed flow vorticity field produced by a fan/core mixer with a circumferentially distributed exhaust flow vorticity field produced by a modified common flow nozzle at an exit plane of the engine exhaust.
摘要翻译： 一种用于减少来自内部混合燃气涡轮发动机排气的喷射噪声发射的系统，包括具有多个混合器叶片的风扇/芯流混合器和具有相同数量的翼片的公共流动喷嘴，所述翼片沿着沿着 喷嘴。 在多个混合器叶片和多个喷嘴翼片之间存在预定的时钟关系，其导致减少的排气噪声发射，在较低的频率范围中最明显。 一种用于减少内部混合燃气涡轮发动机废气排放的喷射噪声的方法包括：选择性地将由风扇/核心混合器产生的混合涡流场的周向分布与由改进的公共流动喷嘴产生的周向分布的排气涡流场对齐 发动机排气口的出口面。
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