CAJ | 학술논문

采用单粒子模型，对两支左旋极化低频Alfven波与等离子体的非共振相互作用进行粒子模拟，讨论了三种不同波幅时垂直与平行方向的加热效果，在非共振加热阶段，加热效果与波幅有关，波幅越大效果越好；而经过随机加热后，粒子动力学温度的最大值仅由外加磁场的能量密度与等离子体密度的比值决定与Alfven波幅无关．加热过程中，离子被加速最终获得一个相当于Alfven波相速度大小的流速．
채용단입자모형，대량지좌선겁화저빈Alfven파여등리자체적비공진상호작용진행입자모의，토론료삼충불동파폭시수직여평행방향적가열효과，재비공진가열계단，가열효과여파폭유관，파폭월대효과월호；이경과수궤가열후，입자동역학온도적최대치부유외가자장적능량밀도여등리자체밀도적비치결정여Alfven파폭무관．가열과정중，리자피가속최종획득일개상당우Alfven파상속도대소적류속．
In this paper,the non-resonant interaction of the two left-hand polarization low-fre- quency and plasmas is simulated with a single-particle model. The heating effect of parallel and perpendicular to the background magnetic field direction with the three different amplitudes is mainly discussed. The heating effect has no concern with the amplitude at the non-resonance heating stage, and the heating effect is better with the amplitude increasing. After the stochastic heating,the maximum kinetic temperature of ions has no relevance to the Alfven wave amplitude, and is only dependent on the ratio of the magnetic field energy density and plasma density. In the heating process ,ions are significantly accelerated in the parallel direction ,and attain a bulk speed which is roughly equal to the Alfven wave phase velocity.