Fig. 1. Density, velocity and temperature distribution of one-dimensional equilibrium flow field under different preheating conditions

Fig. 2. Linear growth rate under strong, medium and weak preheating

Fig. 3. Temporal evolution of the density amplitude of harmonics excited by the coupling of two modes (short-and long-wavelength and ) in different preheating cases 不同预热情况下 与 双模扰动所激发的谐波的密度幅值随时间的演化

Fig. 4. Density contours for and mode coupling under different preheating at t=7.5 ns 不同预热情况下 与 双模扰动下在t=7.5 ns时的密度等值线

Fig. 5. Temporal evolution of the density amplitude of harmonics excited by the coupling of two short-wavelength modes ( and ) in different preheating cases 不同预热情况下 与 双模扰动所激发的谐波的密度幅值随时间的演化

Fig. 6. Density contours for and mode coupling under different preheating at t=7.5 ns 不同预热情况下 与 双模扰动下在t=7.5 ns时的密度等值线