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具有阻尼耗散的DNLS方程的孤立子解析解
Alternative TitleANALYTICAL SOLITARY SOLUTIONS TO DNLS EQUATION WITH DAMPING AND DISPERSION
冯学尚; 吕建永; 北京8701信箱
Department空间天气学国家重点实验室
Source Publication空间科学学报
1997
Volume17Issue:1Pages:25-31
ISSN0254-6124
Language中文
Keyword孤立子 激波 阿尔芬波 太阳风
Abstract用变换和数值积分的方法找到了考虑欧姆阻尼效应时DNLS方程的一类含激波层结构的解析解,讨论了耗散对其振幅及磁场By,Bx的影响,结果表明,耗散对激波厚度有很强的控制作用,耗散越小,激波厚度越大,By和Bz衰减越慢,耗散基础上很小时振幅基本不变,By和Bz过渡成孤立子解,在无耗散时本文得到了含调制相因子的孤立子解析表达式.
Other AbstractIn this paper, a method of variable changes and numerical integral is employed to obtain the analytical solutions with shock layer structures for the DNLS equation by considering Ohm's resistance.Based on the explict solutions,the effect of dispersion on the amplitude and magnetic fields By,Bz is discussed. The results show that the dispersion has an obvious control over the shock width: the smaller the dispersion,the larger the shock width and slower the By,Bz decay. When the dispersion is small enough By and Bz turn into pure solitons.In case of no dispersion, the solitary solution with a modulating factor is also obtained.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1389
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
冯学尚,吕建永,北京8701信箱. 具有阻尼耗散的DNLS方程的孤立子解析解[J]. 空间科学学报,1997,17(1):25-31.
APA 冯学尚,吕建永,&北京8701信箱.(1997).具有阻尼耗散的DNLS方程的孤立子解析解.空间科学学报,17(1),25-31.
MLA 冯学尚,et al."具有阻尼耗散的DNLS方程的孤立子解析解".空间科学学报 17.1(1997):25-31.
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