模型中路段交通条件假设为两部分：一部分为自由流，一部分为排队车流。
The traffic flow on links in the model is assumed as two parts: the free flow and a queue.
考虑到非线性的自由液面边界条件，用下潜涡环栅格法求解水翼绕流问题。
The nonlinear free surface boundary condition is considered and the hydrodynamics forces of the hydrofoil near the free surface are calculated by the submerged vortex lattice method.
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