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Test device for researching condensed phase particle collision discipline

A particle collision and test device technology, which is applied in the field of test devices for studying the collision law of condensed phase particles, can solve the problems that the collision law of condensed phase particles cannot be revealed, and the impact cannot be studied.

Inactive Publication Date: 2011-05-11
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method cannot study the influence of single factors such as particle velocity, collision angle, and particle concentration on particle collisions, and cannot reveal the law of condensed-phase particle collisions.

Method used

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  • Test device for researching condensed phase particle collision discipline
  • Test device for researching condensed phase particle collision discipline
  • Test device for researching condensed phase particle collision discipline

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Experimental program
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Embodiment

[0026] In this embodiment, the test device proposed by the present invention is used to carry out the collision test of condensed phase particles, and the influence of three impact factors such as particle velocity, collision angle and particle concentration on the collision law of condensed phase particles can be studied in a single way.

[0027] Refer to attached figure 1 And attached figure 2 , In this embodiment, the test device used includes a test section assembly 1 and a particle generator 2 .

[0028] Refer to attached image 3 , the test section assembly 1 includes a test shell 3 and a ventilation joint 4, the test shell 3 is a hollow cylindrical structure, one end of which is an opening, and a hollow cylindrical connecting section protrudes from the other end surface, and the end of the hollow cylindrical connecting section There is a connecting flange for fixed connection with the particle generator 2, and a ventilation joint 4 is installed on the end face of the...

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Abstract

The invention provides a test device for researching condensed phase particle collision discipline. The device comprises a test section assembly and a particle generator. Through selecting the outlet area of a speed control piece of the particle generator, the content of metal in a propellant and an included angle of a plurality of particle generators, high temperature and high pressure environment of the condensed phase particle collision in an actual engine can be simulated, simultaneously the parameters such as particle speed, collision angle, particle concentration and the like can be adjustable under the condition that other parameters are unchanged, and the influence of the single parameter such as particle speed, collision angle and particle concentration on the changes of particlediameter before and after the collision can be researched.

Description

technical field [0001] The invention relates to the field of engine tests, in particular to a test device for studying the collision law of condensed phase particles. Background technique [0002] In a solid rocket motor, in order to increase the energy of the solid propellant, some metal fuels with a higher calorific value of combustion are generally added to the propellant as one of the basic components, such as aluminum powder and boron powder. For this metal-containing composite propellant, since the combustion temperature of the propellant is higher than the melting point of the metal combustion product, but lower than the boiling point of the metal combustion product, the metal combustion product produced is in a molten state in the gas, that is, the condensed phase . Condensed phase particles will collide with the flow of high-temperature gas, and the parameters such as particle diameter after collision will change. The change of particle parameters will have a great...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K9/96
Inventor 胡春波夏盛勇张胜敏何国强
Owner NORTHWESTERN POLYTECHNICAL UNIV
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