Outdoor measuring method for dynamic characteristic of flow field in rising and landing periods of airplane and smoke generating device for measurement

A technology of smoke generating device and measurement method, which is applied in the direction of measuring device, machine/structural component testing, aerodynamic test, etc. It can solve the problems of undiscovered measuring device and method, and achieve the reduction of test cost and risk and reference value High, the real effect of the test environment

Inactive Publication Date: 2016-08-17
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] From the literature published at home and abroad, no related measurement devices and methods have been found to apply flow display technology to scale model flight verification

Method used

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  • Outdoor measuring method for dynamic characteristic of flow field in rising and landing periods of airplane and smoke generating device for measurement
  • Outdoor measuring method for dynamic characteristic of flow field in rising and landing periods of airplane and smoke generating device for measurement

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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0022] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than ...

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Abstract

The invention provides an outdoor measuring method for dynamic characteristic of a flow field in rising and landing periods of an airplane and a smoke generating device for measurement in an airplane outdoor true environment based on an unmanned aerial vehicle. A human-driven testing airplane is replaced by a dynamically similar unmanned aerial vehicle, thereby reducing testing cost and risk. The outdoor measuring method is suitable for testing and comparison of a novel layout airplane in a designing and developing period. Compared with a wind tunnel static simulation test, the outdoor measuring method is advantageous in that the outdoor measuring method is a dynamic measuring method through placing the to-be-measured airplane and the measuring device in the outdoor true flight environment, thereby realizing truer testing environment and high reference value of obtained experiment data. Furthermore, according to the outdoor measuring method, the visual characteristic of the flow field of a smoke tunnel is combined with environment authenticity of a flight environment, and a new thought is supplied for verifying airworthiness compliance of a large-size transporter airplane in the rising and landing periods.

Description

technical field [0001] The invention relates to the field of measuring the characteristics of the near-ground flow field of an aircraft, in particular to an outdoor measurement method for the dynamic characteristics of the flow field during the take-off and landing phase of the aircraft and a device for measuring smoke. Background technique [0002] At present, wind tunnel test is the most commonly used aerodynamic test method, because of its advantages of more accurate control of test conditions, variety of test items and contents, and high accuracy of results, it is widely used in the field of aircraft development. For example, in the early stage of the development of a new layout aircraft, it is usually necessary to use a model aircraft to go through a large number of static wind tunnel tests to simulate the flow field and predict its flight performance. However, when testing the take-off and landing performance of the aircraft, its shortcomings cannot be ignored. First,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/00
CPCG01M9/00
Inventor 高仁慧侯乃丹宫磊张炜
Owner NORTHWESTERN POLYTECHNICAL UNIV
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