In boundary treatment , the model turns into generally adds coarseness boundary made of specially complex many coarseness body in the physical model experiment as the coarseness body highly and discharges the density to add the coarseness spot as the main characteristic whole , both to avoid the location within the body of this complex mathematical simulation problems , and could realize this model after to simulate the apron that adds the coarseness namely adds the coarseness section downriver speed of flow to the downriver current of water base speed of flow influence in to hang upward 该模型在边界处理时,将物理模型试验中由特别复杂的多个加糙体组成的加糙边界概化成以糙体高度为主要特征的整个加糙部位,既避开了对加糙体内部进行极其复杂数学模拟的这一难题,又能实现模拟海漫加糙段下游水流流速在垂向上的分布变化这一主要目的。在获得基本的入流流速分布、初始水位及加糙体的绝对高度和加糙段长度的情况下,能迅速模拟出加糙段下游各个断面在垂向上的流速分布情况。
In the turbulent flow , the fluid ’ s physical parameters has the stochastic change along with the time and the space , it is very difficult to carries on its rate process ’ s precise computation and the simulation with mathematics method , but unstable condition navier - stokes equation regarding open canal current of water transient motion suitable 闸后水流经过加糙的海漫段时,其水流状态属明渠紊流。流体中的各种物理参数,都随时间与空间发生随机的变化,很难用数学的方法对其运动过程进行精确计算和模拟。
