CAJ | 학술논문

基于卷积的PML吸收层算法能够吸收各种频率、各种传播方向、各种传播速度的电磁波,同时具有计算量小、吸收率高、可并行性好等突出特点.改进基于卷积的PML算法的差分形式,使之适合于PIC粒子模拟,编制了相应代码.对该算法的测试表明,对各种角度的散射电磁波振幅的吸收率达到0.999以上.
기우권적적PML흡수층산법능구흡수각충빈솔、각충전파방향、각충전파속도적전자파,동시구유계산량소、흡수솔고、가병행성호등돌출특점.개진기우권적적PML산법적차분형식,사지괄합우PIC입자모의,편제료상응대마.대해산법적측시표명,대각충각도적산사전자파진폭적흡수솔체도0.999이상.
The convoluation PML, as an effective method to truncate the FDTD lattices, has the good characteristics to absorb the electromagnetic wave propagated in almost any media with any frequency any incident angle and any polarization. The cPML method also shows a very high absorptivity, little comsumed cost of computing and easy to programming. We improve the cPML algorithm and implement it in our PIC software package LAPINE . Our test demonstrates that the absorptivity of electromagnetic wave can be up to 0.999 with appropriate parameters.