In order to describe the characterization of resistive drift-wave nuctuauon in a [OKalnaK plasma, a coup^e~a lllVlbt;IU two-dimensional Hasegawa-Wakatani model is investigated. Two groups of new analytic solutions wit...In order to describe the characterization of resistive drift-wave nuctuauon in a [OKalnaK plasma, a coup^e~a lllVlbt;IU two-dimensional Hasegawa-Wakatani model is investigated. Two groups of new analytic solutions with and without phase shift between the fluctuant density and the ftuctuant potential are obtained by using the special function transformation method. It is demonstrated that the fluctuant potential shares similar spatio-temporal variations with the density. It is found from the solutions without phase shift that the effect of the diffusion and adiabaticity on the fluctuant density is quite complex, and that the fuctuation may be controlled through the adiabaticity and diffusion. By using the typical parameters in the quasi-adiabatic regime in the solutions with phase contours become dense toward the plasma edge and the distribution in the tokamak edge. shift, it is shown that the density gradient becomes larger as the contours have irregular structures, which reveal the nonuniform展开更多
基金Project supported by the National Natural Science Foundation of China(Grant Nos.10905038,11275123,and 11365017)the National ITER Plans Program of China(Grant No.2009GB105002)the Natural Science Foundation of Jiangxi Province,China(Grant Nos.2008GZS0045 and 2009GZW0026)
文摘In order to describe the characterization of resistive drift-wave nuctuauon in a [OKalnaK plasma, a coup^e~a lllVlbt;IU two-dimensional Hasegawa-Wakatani model is investigated. Two groups of new analytic solutions with and without phase shift between the fluctuant density and the ftuctuant potential are obtained by using the special function transformation method. It is demonstrated that the fluctuant potential shares similar spatio-temporal variations with the density. It is found from the solutions without phase shift that the effect of the diffusion and adiabaticity on the fluctuant density is quite complex, and that the fuctuation may be controlled through the adiabaticity and diffusion. By using the typical parameters in the quasi-adiabatic regime in the solutions with phase contours become dense toward the plasma edge and the distribution in the tokamak edge. shift, it is shown that the density gradient becomes larger as the contours have irregular structures, which reveal the nonuniform
