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公开(公告)号：US10366182B2
公开(公告)日：2019-07-30
申请号：US14806373
申请日：2015-07-22
申请人： The Boeing Company
摘要： Methods and apparatus to model thermal mixing for prediction of multi-stream flows are described. An example method includes determining characteristics of a nozzle of an aircraft; estimating momentum diffusion due to turbulence associated with the nozzle based on the determined characteristics; and estimating thermal diffusion due to the turbulence associated with the nozzle based on the estimated momentum diffusion, wherein the estimating of the thermal diffusion due to the turbulence is based on a spatially varying turbulent Prandtl number.
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2.发明申请METHODS AND APPARATUS TO MODEL THERMAL MIXING FOR PREDICTION OF MULTI-STREAM FLOWS 审中-公开模拟热混合预测多流动流量的方法与装置公开(公告)号：US20170024496A1
公开(公告)日：2017-01-26
申请号：US14806373
申请日：2015-07-22
申请人： The Boeing Company
CPC分类号： G06F17/5009 , G06F17/11 , G06F17/5018 , G06F17/5095 , G06F2217/16 , G06F2217/80
摘要： Methods and apparatus to model thermal mixing for prediction of multi-stream flows are described. An example method includes determining characteristics of a nozzle of an aircraft; estimating momentum diffusion due to turbulence associated with the nozzle based on the determined characteristics; and estimating thermal diffusion due to the turbulence associated with the nozzle based on the estimated momentum diffusion, wherein the estimating of the thermal diffusion due to the turbulence is based on a spatially varying turbulent Prandtl number.
摘要翻译： 描述了用于模拟热混合以预测多流量的方法和装置。 一种示例性方法包括确定飞行器的喷嘴的特性; 基于确定的特性估计与喷嘴相关的湍流的动量扩散; 并且基于估计的动量扩散来估计由于与喷嘴相关联的湍流引起的热扩散，其中由于湍流估计的热扩散基于空间变化的湍流Prandtl数。
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公开(公告)号：US11530051B2
公开(公告)日：2022-12-20
申请号：US16893028
申请日：2020-06-04
申请人： The Boeing Company
发明人： Navid Daneshvaran , Takao Suzuki , Nicholas J. Moffitt , Nicholas Toon , Michael Lewis McGillivray
摘要： A tow bar fitting for towing an aircraft is disclosed. The tow bar fitting includes a mount, a pin support, and a tow pin. The mount includes an upper attachment and a lower attachment for affixing the tow bar fitting to a landing gear of the aircraft. The pin support extends from the mount away from the landing gear. The tow pin is positioned in the pin support such that a tow pin plane that horizontally bisects the tow pin is lower than a mount plane that horizontally bisects the upper attachment and the lower attachment when the aircraft is right-side-up on the ground.
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公开(公告)号：US20210380276A1
公开(公告)日：2021-12-09
申请号：US16893028
申请日：2020-06-04
申请人： The Boeing Company
发明人： Navid Daneshvaran , Takao Suzuki , Nicholas J. Moffitt , Nicholas Toon , Michael Lewis McGillivray
摘要： A tow bar fitting for towing an aircraft is disclosed. The tow bar fitting includes a mount, a pin support, and a tow pin. The mount includes an upper attachment and a lower attachment for affixing the tow bar fitting to a landing gear of the aircraft. The pin support extends from the mount away from the landing gear. The tow pin is positioned in the pin support such that a tow pin plane that horizontally bisects the tow pin is lower than a mount plane that horizontally bisects the upper attachment and the lower attachment when the aircraft is right-side-up on the ground.
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