Viscous sub-cycle time step and Lagrangian sub-cycle time step are adopted to accelerate convergence.
采用粘性子循环时步、拉格朗日子循环时步加速收敛;
2
Centralization, Sub urbanization, Counter urbanization and Re urbanization are the main phases in the life cycle of metropolis.
向心城市化、城郊化、逆城市化和再城市化四个连续的变质阶段构成大都市的生命周期。
3
Based on stepwise optimization strategy, this method separates the multicycle optimization problem into two sub problems: simplified multicycle optimization and single cycle optimization.