Numerical Study of Thrust Generation in the Process of Laser Ablated Doped Polymer
2011
Recoil impulse of ablation products is a dominant source of thrust during laser ablation of polymers in vacuum. Based on the experiment phenomenon, put forward the threshold energy model to described ablation process, used laser deposition energy in polymer as ablation criterion, and calculated the fluence of energy generation from polymer chemolysis. Take the doped polymer PVC as research object, analyzed and computed interested parameter in process of laser ablated polymer, such as exhaust velocities of ablated product, ablated mass of polymer, recoil momentum gained by polymer target. Consulted experiment data, the numerical model well revealed the propulsion capability of different polymers.
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