By use of this model, it is demonstrated that the Karman constant is varied in vertical distance from near 0.4 in near bed region to below 0.4 in main flow region.

• 利用该流速分布模型，得到挟沙水流的卡门常数沿垂线是变化的结论，即从近底区的约0.；4渐变到主流区的小于0