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.: US14760278Application Date: 2014-01-13
-
Publication No.: US20150344126A1Publication 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

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.
Information query