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《火工品》 2000-03
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Comparison of One-dimensional Finite Difference Model about the Process of Laser Ignition

HU Yan, SHEN Rui qi, YE Ying hua (Nanjing University of Science and Technology, Nanjing 210094)  
Four one dimensional finite difference models about the process of laser ignition are developed. Based on the calculations, function time and variation curve of surface temperature of four models is compared. Results show that effect of the two factors on function time and ignition threshold cannot be overlooked, the effect of chemical reaction heat is greater than that of the other factor, and the effect of them on function time reduces along with laser energy rising. If with effect of chemical reaction heat, variation curve of surface temperature of powder appears double peaks while laser energy is lower. The higher laser energy is, the shorter function time is.
【CateGory Index】: TJ45
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