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Measuring device and measuring method of internal flow field and external characteristic of water-jet propeller

A technology of water jet propulsion and measuring device, which is applied in the direction of measuring device, testing of machine/structural parts, instruments, etc., can solve the problem of difficulty in accurately obtaining flow field data in the water jet propulsion device, and achieves simple structure, The effect of easy observation and strong operability

Active Publication Date: 2014-12-17
708TH RES INST OF CSSC
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Problems solved by technology

However, for a long time, the measurement of the internal flow field and external characteristics of the waterjet propulsion has been difficult due to the constraints of the structure of the waterjet propulsion, the technology of the transparent material of the outer shell, the technology of fluid measurement, and the difficulty in separating the propeller from the hull. Accurately obtain the data of the internal flow field and external characteristics of the waterjet

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Embodiment Construction

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0045] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0046] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0047] Such as figure 1 Shown, a kind of waterjet propulsion internal flow field and external characteristic me...

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Abstract

The invention discloses a measuring device and a measuring method of an internal flow field and external characteristics of a water-jet propeller, and relates to the field of ship propulsion. A power unit of the measuring device of the internal flow field and the external characteristics of the water-jet propeller is suspended inside a ship model; two thrust acquisition modules of a data acquisition unit are arranged at the middle front part and the tail part of the ship model respectively; an axial force acquisition module is arranged on the power unit; a rotating speed and a torque acquisition module is arranged on the power unit. According to the invention, as a propeller shell made of a transparent organic glass material is adopted, observation and measurement for the internal flow field of the water-jet propeller are realized; as the data acquisition unit obtains the thrust, the axial force, the rotating speed and the torque of the propeller, and calculates the power of the propeller based on the rotating speed and the torque, the external characteristic of the propeller is accordingly obtained; the measuring device for the internal flow field and the external characteristic of the water-jet propeller is simple in structure, high in measurement precision and strong in operability.

Description

technical field [0001] The invention relates to the field of ship propulsion, in particular to a device and a measurement method for measuring the internal flow field and external characteristics of a water jet propeller. Background technique [0002] The measurement of the internal flow field and external characteristics of waterjet propulsion is the basis for optimizing the hydrodynamic structure of waterjet propulsion, improving the accuracy of forecasting ship navigation characteristics, and improving the technical level of waterjet propulsion. However, for a long time, the measurement of the internal flow field and external characteristics of the waterjet propulsion has been difficult due to the constraints of the structure of the waterjet propulsion, the technology of the transparent material of the outer shell, the technology of fluid measurement, and the difficulty in separating the propeller from the hull. Accurately obtain the data of the internal flow field and ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M10/00G01M99/00
Inventor 蔡佑林孙群陈建平周加建范佘明
Owner 708TH RES INST OF CSSC
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