A cracking reaction analysis method and device for aerospace propellants
A cracking reaction, aerospace technology, applied in the field of fluid analysis, can solve the problems of inability to accurately describe the physical properties of propellants, large errors, etc.
Active Publication Date: 2019-02-01
BEIHANG UNIV
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is how to solve the existing method for analyzing the cracking process of the propellant. Because each component is analyzed separately and then weighted, the error is large, and the physical properties of the propellant cannot be accurately described.
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[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0043] figure 1 It is a schematic flow chart of the pyrolysis reaction analysis method for aerospace propellants provided in this example. see figure 1 , the method includes:
[0044] 101: Carry out mesh division of the propellant transported in the preset pipeline, and obtain initial conditions and boundary conditions of the propellant tr...
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The embodiment of the invention discloses a cleavage reaction analysis method and device used for aerospace propellant. The method comprises the following steps that: carrying out mesh generation on the propellant transmitted in a preset pipeline, and obtaining the initial condition and the boundary condition of the propellant transmitted in the pipeline; and according to the initial condition, the boundary condition and a preset rule, calculating the physical field distribution of the propellant in the pipeline, and outputting the physical field distribution of the propellant. By use of the method, mixture formed after the propellant is subjected to cleavage reaction is taken as an analysis object, the initial condition and the boundary condition related to the mixture are directly collected, and the integral physical property of the mixture is analyzed. Compared with an analysis method that independent analysis is carried out by aiming at each component in the mixture to carry out weighting to obtain the physical property of the whole propellant, the embodiment analyzes the propellant as a whole, and therefore, a result for accurately describing the physical property of the propellant can be obtained.
Description
technical field [0001] The invention relates to the technical field of fluid analysis, in particular to a cracking reaction analysis method and device for aerospace propellants. Background technique [0002] During the normal operation of aerospace vehicles, aerospace propellants will undergo a heating process, which makes the temperature of the propellant rise from normal temperature to a higher temperature. When the temperature exceeds the temperature at which cracking reactions occur, the propellant will undergo cleavage reaction. The cracking reaction is a complex reaction that only occurs at high temperature, which makes the macromolecular group break down into complex small molecular components, and at the same time, the internal energy decreases due to the heat absorption of the cracking reaction. Along with the progress of the cracking reaction, the flow and heat transfer of the propellant will also be significantly affected. [0003] However, the existing software...
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IPC IPC(8): G16C20/10
CPCG16C20/10
Inventor 朱剑琴陶智程泽源李海旺
Owner BEIHANG UNIV