强激光与粒子束2011，Vol.23Issue(10)：2687-2691,5.DOI:10.3788/HPLPB20112310.2687
应用于低密度等离子体产生的气体靶模拟
Simulation study on gas targets applied to underdense plasma generation
摘要
Abstract
Numerical simulations and analyses are done on two types of gas targets by using a computational fluid-dynamics software. For a gas-filling capillary, a stable laminar flow can be formed. It can produce a uniform density distribution and the nonuniformity between the two inlets is only 1%. The capillary parameters such as the capillary's inlet locations and the inlet width have evident influence on the density profiles around the capillary's ends, but negligible on the density-profile distributions inside the capillary. For a conical gas jet, it can make the end-density profile steeper than that of the capillary. But the supersonic flow of the gas jet may cause turbulence, which may cause the gas flow unstable and the gas-density profile less uniform.关键词
气体靶/流体力学模拟/气体密度分布/均匀性Key words
gas target/fluid-dynamics simulation/gas-density distribution/uniformity分类
数理科学引用本文复制引用
马占南,王晓方..应用于低密度等离子体产生的气体靶模拟[J].强激光与粒子束,2011,23(10):2687-2691,5.基金项目
国家自然科学基金项目(10876039,11075160) （10876039,11075160）
