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Model airplane axial flow ducted fan design method

A design method and technology of ducted fans, applied in axial flow pumps, mechanical equipment, components of pumping devices for elastic fluids, etc., can solve problems such as fan design exceeding the scope of application

Active Publication Date: 2018-09-11
成都飞擎航空科技有限公司
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Problems solved by technology

For this reason, the design speed of the fan needs to be adjusted upwards to match the high speed of the motor, which leads to the design of the fan beyond the scope of application of conventional methods

Method used

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  • Model airplane axial flow ducted fan design method
  • Model airplane axial flow ducted fan design method
  • Model airplane axial flow ducted fan design method

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Embodiment Construction

[0038] The present disclosure will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific implementation manners described here are only used to explain relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only parts related to the present disclosure are shown in the drawings.

[0039] It should be noted that, in the case of no conflict, the implementation modes and the features in the implementation modes in the present disclosure can be combined with each other. The present disclosure will be described in detail below with reference to the drawings and embodiments.

[0040] The design of low-load, high-speed high-efficiency ducted fans cannot follow the conventional design process and rely on rich design experience. This makes the selection of high-efficiency ducted fan design parameters lack of basis.

[0041] Cascade consistency is an imp...

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Abstract

The invention provides a model airplane axial flow ducted fan design method. The model airplane axial flow ducted fan design method comprises the following steps of 1, according to the flow and the total pressure rise of a fan, designing an inlet velocity triangle and an outlet velocity triangle of a fan rotor and an inlet velocity triangle and an outlet velocity triangle of a fan stator; and 2, according to the inlet velocity triangle and the outlet velocity triangle of the fan rotor and the inlet velocity triangle and the outlet velocity triangle of the fan stator, designing geometric parameters of the rotor and the stator.

Description

technical field [0001] The disclosure relates to a design method for an axial-flow ducted fan of an airplane model. Background technique [0002] Aircraft model ducted fans are generally driven by DC motors. Under the premise of the same motor output power, high speed (tens of thousands of revolutions per minute, corresponding blade tip tangential speed of hundreds of meters per second) and low torque motors can reduce the speed of the motor. The weight, so as to carry more batteries, improve the flight time. For this reason, it is necessary to increase the design speed of the fan to match the high speed of the motor, which leads to the design of the fan beyond the scope of application of conventional methods. [0003] There are two types of conventional design methods that are similar to the principles of ducted dynamic fans: axial flow fan design methods and compressor-fan design methods. The axial flow fan design method is suitable for low blade tip tangential velocity ...

Claims

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Application Information

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IPC IPC(8): F04D19/00F04D29/52F04D29/32F04D29/38
CPCF04D19/002F04D29/325F04D29/384F04D29/522
Inventor 李秋实潘天宇刘仕杰鹿哈男
Owner 成都飞擎航空科技有限公司
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