第8章. 第八章

As numerous fresh flowing streams concur in the vast expanse of the咸海; numerous lines approach closely to the heart of the dial; so may countless actions, hastily set forth from various origins, converge upon a singular goal and ultimately achieve it without suffering any setbacks.

——Henry V, Act I

Particle tracking (PT) 是一种用于计算流路和时间的后处理工具，在第 9.3 节中提及该方法可被用作校准目标之一。此外，PT 也可用于表示溶质的 advective 运输过程（包括污染物）

8.1 介绍

A particle tracking (PT) code functions as a post-processing tool associated with a groundwater flow model, responsible for computing velocity fields and tracing the movem