应用MIKE 21 BW模型分析航道对波浪传播的影响

波浪在传播过程中遇到航道会发生折射、绕射以及反射现象。MIKE21的BW模块可以很好地计算和分析港口、码头等小面积波浪场中的多方向不规则波的相互作用，浅水变形，折射，绕射和反射等各种波浪现象。本文采用该模块建立在不同航道条件下的波浪传播数学模型，并利用数模结果系统地分析了航道水深、航道宽度、航道边坡坡度以及波浪入射角度对波浪传播与变形的影响规律。成果对试验研究及工程实践有指导意义。

Analysis of the impact of navigation upon wave propagation by using MIKE 21 BW module

Refraction, diffraction and reflection will happen when wave encounters channel during the process of wave propagation. MIKE 21 BW is a good module to calculate and analyze the interaction of multi-directional irregular waves propagating in a small area and to simulate various wave phenomena, such as shoaling, refraction, diffraction and reflection. Based on the module, this paper analyzes the impacts on the wave propagation caused by water depth of channel, channel width, channel slope and angle of inci- dent wave. The results provide some reference to the planning and design of port and navigation works.