Cleavage reaction analysis method and device used for aerospace propellant
A cracking reaction, aerospace technology, applied in the field of fluid analysis, can solve problems such as large errors and inability to accurately describe the physical properties of propellants
Active Publication Date: 2017-10-17
BEIHANG UNIV
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
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.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0042] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0043] figure 1 It is a schematic flow chart of the analysis method for aerospace propellant cracking reaction provided in this embodiment. See figure 1 , The method includes:
[0044] 101: Grid the propellant transported in the preset pipeline, and obtain the initial conditions and boundary conditions of the propellant transported in ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
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 propellant. Background technique [0002] During the normal operation of aerospace vehicles, the aerospace propellant will undergo a heating process, which causes the temperature of the propellant to rise from normal temperature to a higher temperature. When the temperature exceeds the temperature at which the cracking reaction occurs, the propellant will undergo heating. Cracking reaction. The cleavage reaction is a complex reaction that only occurs at high temperatures, causing the macromolecular components to crack into complex small molecular components, and at the same time, the internal energy is reduced due to the endothermic heat of the cleavage reaction. With the progress of the cracking reaction, the flow and heat transfer of the propellant will also be significantly affected. [0003] However, the existing ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G06F19/00
CPCG16C20/10
Inventor 朱剑琴陶智程泽源李海旺
Owner BEIHANG UNIV