Ion temperature gradient driven modes are studied in the short wavelength region by using a three pole reactive fluid model and an adiabatic E*B convection model, as well as the gyro-Landau fluid model. In all of the above models the parallel ion dynamics is included and the results have been compared both analytically and numerically. Furthermore, the effects of the magnetic safety factor q on the growth rate and transport coefficient chi i have been investigated. The maximum of chi i as a function of the mode number is computed, and the stabilizing effect of the negative magnetic shear has been studied
イオン温度勾配駆動モードを、三極反応性流体モデルと断熱E×B対流モデル、ならびにジャイロ・ランダウ流体モデルを用いて短波長領域で調べた。上記の全モデルにおいて平行イオン動力学が含められ、結果は解析的および数値的に比較された。さらに、成長率と輸送係数χiに対する磁気安全係数qの影響が調査された。モード数の関数としてのχiの最大値が計算され、負の磁気シアの安定化効果が研究された。