Method for simulating discharge process of discharge chamber of Kaufman ion thruster
An ion thruster and discharge process technology, applied in instruments, measuring electricity, measuring electrical variables, etc., can solve the problems of many control equations, huge differences in particle characteristics, low cost of numerical simulation methods, etc. effect of speed
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[0027] Such as figure 1 Shown is a schematic diagram of the calculation process of the simulation method for the discharge process of the discharge chamber of a Kaufmann ion thruster according to the present invention. The simulation method specifically includes the following steps: Step 1: Calculate the average atomic density in the discharge chamber before ionization according to the neutral atom flow rate into the discharge chamber; Step 2: Use commercial software Ansys or CST to calculate the static magnetic field in the discharge chamber ; Step 3: Use the kinetic method to calculate the distribution of primary electrons and count the ionization rate; Step 4: Bring the ionization rate into the plasma diffusion equation and solve it, and estimate the beam size; Step 5: Calculate the atomic flow rate out of the discharge chamber The ratio k to the atomic flow rate entering the discharge chamber; Step 6: After obtaining the ratio k, judge whether |k-1|≤5%; Step 7: If yes, the...
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