1000mw green laser burning technology
In recent years, with the development of laser technology and manufacturing technology, laser based combustion diagnosis plays an increasingly important role. 1000mw green laser burning diagnosis technology is developed with the requirement of temperature measurement in modern high temperature combustion and complex flow field. It has the advantages of nonlinearity, on-line measurement, high resolution and visualization. Laser pointer combustion diagnosis technology is based on laser technology, spectroscopy technology and photoelectric detection technology. The comprehensive test and diagnosis technology based on technology, data and image processing technology can realize the high spatial and temporal resolution accurate measurement of the parameters of the combustion field, such as temperature, composition and concentration, flame structure, flow and so on, and the measurement results have no interference to the combustion process.
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The measurement of these parameters is of great significance for the study of transient chemical reaction dynamics in combustion field, such as solid propellant combustion dynamics, supersonic combustion dynamics, combustion efficiency and pollution control of automobile and aircraft engines. A relatively complete experimental system for the diagnosis of 1000mw green laser burning combustion has been established. The temperature, composition, flame structure and flow field velocity of the combustion field have been measured, coherent anti-Stokes Raman scattering (CARS) and spontaneous vibration Raman scattering (SVRS) have been performed, planar laser-induced fluorescence (PLIF) and OH tracer velocity (HTV) have been studied. The parameters such as flame temperature, main composition and concentration, flame structure and high temperature flow field velocity are comprehensively measured to obtain higher measurement accuracy. On this basis, the main parameters of solid propellant transient combustion field were diagnosed by using complementary advantages of different test techniques, and were initially applied to the diagnosis of pulsed supersonic high temperature flow field. Based on the experimental data of multi-field and multi-component dynamic changes of turbulent combustion, the complex laws and dynamic evolution mechanism of turbulent combustion under a wide range of conditions are summarized, analyzed and explored in depth, and a new breakthrough in the theoretical basis of turbulent combustion is sought with the help of numerical simulation.
2021-09-17 12:45:58
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