Characterization method of cold emission process with supercritical carbon dioxide as working medium and computer program product

Abstract

The invention provides a characterization method of a cold emission process with supercritical carbon dioxide as a working medium and a computer program product. The method comprises the following steps: 1) obtaining structure parameters, initial state parameters and preset working parameters of the cold emission system; 2) calculating the quick pressurization process of the high-pressure chamber; 3) calculating the dynamic change process of the carbon dioxide state in the high-pressure chamber after the valve is opened; and 4) calculating the dynamic change process of the carbon dioxide state in the variable-volume low-pressure chamber and the movement variable of the aircraft until the displacement X or the speed v of the aircraft meets the preset emission requirement. By means of the method, the dynamic change characteristic of the carbon dioxide state in the high-pressure chamber and the low-pressure chamber in the cold launching process and the incidence relation between the change characteristic and aircraft movement can be quickly obtained, theoretical guidance is provided for design, research and development of a cold launching system with supercritical carbon dioxide as a working medium, and the research and development cost and period of the system are reduced.

Description

technical field [0001] The invention relates to the field of cold emission, in particular to a characterization method of the cold emission process using carbon dioxide as a working medium. Background technique [0002] The launch of missiles or launch vehicles that do not rely on their own engines is called cold launch. At present, steam ejection and gas steam ejection are more common, but these ejection methods have some limitations, mainly: [0003] 1) It needs to be equipped with a large-volume steam storage tank to compress the bomb load space; [0004] 2) The ejection load is small. When the ejection load reaches a certain level and continues to increase the load, the steam consumption and energy will increase rapidly; [0005] 3) The ejection ability adjustment system is complicated, which reduces the reliability of the system. In view of this, countries have successively conducted research on other ejection methods. [0006] Compared with the traditional ejection...

AI Technical Summary

Problems solved by technology

[0005] 3) The ejection ability adjustment system is complicated, which reduces the reliability of the system

However, there is still a lack of understanding of the dynamic change characteristics of the carbon dioxide state in the high and low pressure chamber during the ejection process and its relationship with the missile movement when carbon dioxide is used as the ejection working medium.

Images