Numerical Simulation And Application Of Fiber Laser Propulsion Model In Ablation Mode

With the successful launch and return of Chang’e-5,China’s spaceflight has taken a big step forward and proved that China has become a major space power.One of the most important signs of a major space power is the development of space propulsion technology.Space propulsion technology mainly refers to the technology of sending rockets or carriers into space and realizing space orbit and attitude control.The propulsion forms include chemical propulsion,electric propulsion,nuclear propulsion,and laser propulsion technology.In this paper,the application prospect of laser propulsion is elaborated.The main simulation analysis is the parabolic pulsed laser thruster and the continuity laser thruster of the iso-direct nozzle model.Numerical simulations are carried out using the finite element software FLUENT.For the parabolic pulsed laser thruster,the effects of laser energy,nozzle configuration,pulse width and atmospheric environment on the propulsion performance are mainly studied.Most of the existing laser propulsion research is pulsed laser propulsion,and continuous laser propulsion is rarely used for experimental simulation;this paper studies the characteristics of fiber laser propulsion working medium,using different working mediums,and comparing and analyzing the equivalence of gas working mediums such as hydrogen and argon.The impact of the continuous laser thruster of the direct nozzle on the propulsion performance;mainly analyzes the basic research done by the laboratory on the practical application of laser propulsion technology,mainly focusing on the satellite orbit control system based on fiber laser and fiber laser propulsion technology Application research of satellite attitude adjustment system,fiber laser self-propelled spacecraft system and fiber laser self-propelled spacecraft control system.Focus on the application of fiber lasers in laser propulsion technology and research on technical solutions using fiber transmission technology for propulsion,providing new methods for laser propulsion technology and laser guidance.Through the comparison of simulation and experiment,it is found that the law is consistent,which has certain theoretical guiding significance for the future research of laser propulsion performance.