Invention Application
US20150344126A1 METHOD FOR IMPROVING CROSSWIND STABILITY OF A PROPELLER DUCT AND A CORRESPONDING APPARATUS, SYSTEM AND COMPUTER READABLE MEDIUM 审中-公开
用于改进螺旋桨导管和相应装置,系统和计算机可读介质的交叉稳定性的方法

  • Patent Title: METHOD FOR IMPROVING CROSSWIND STABILITY OF A PROPELLER DUCT AND A CORRESPONDING APPARATUS, SYSTEM AND COMPUTER READABLE MEDIUM
  • Patent Title (中): 用于改进螺旋桨导管和相应装置,系统和计算机可读介质的交叉稳定性的方法
  • Application No.: US14760278
    Application Date: 2014-01-13
  • Publication No.: US20150344126A1
    Publication Date: 2015-12-03
  • Inventor: Keen Ian CHAN
  • Applicant: SINGAPORE TECHNOLOGIES AEROSPACE LTD
  • Priority: SG201300494-0 20130121
  • International Application: PCT/SG2014/000006 WO 20140113
  • Main IPC: B64C11/00
  • IPC: B64C11/00 B64C27/20 F15D1/02
METHOD FOR IMPROVING CROSSWIND STABILITY OF A PROPELLER DUCT AND A CORRESPONDING APPARATUS, SYSTEM AND COMPUTER READABLE MEDIUM
Abstract:
Various embodiments provide a method for improving crosswind stability of a propeller duct. The method comprises defining an initial duct section based on a predetermined airfoil section having an initial value of a geometric parameter such that the geometric parameter of a portion of the initial duct section has the initial value. The method also comprises determining fluid flow paths around the initial duct section when subject to a crosswind having a predetermined crosswind speed. The method further comprises varying the initial value of the geometric parameter of the initial duct section to a threshold value which causes separation of fluid flow paths at a windward side of the initial duct section at and above the predetermined crosswind speed to form an improved duct section. Various embodiments provide a corresponding apparatus, system and/or computer readable medium.
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