【摘要】：基于Flow-3D軟件,建立抗拖網(wǎng)海床基沙土基床沖刷的三維數(shù)學模型,控制水流流速和泥沙粒徑,對不同條件下抗拖網(wǎng)海床基周圍沙土基床的沖刷進行數(shù)值模擬,并分析了抗拖網(wǎng)海床基最大沖刷深度隨這兩種因素改變的趨勢。結(jié)果表明,抗拖網(wǎng)海床基沙土基床沖刷坑深度隨海流流速增大而增加,在設(shè)定其他條件不改變的情況下,沖刷坑的加深速度隨著流速增大會逐漸減緩,最終達到?jīng)_淤平衡。同時,由于海底環(huán)境復(fù)雜多變,導(dǎo)致模型與實際情況有一定的差異,還需在后續(xù)的研究中進一步進行優(yōu)化。
[Abstract]:Based on Flow-3D software, a three-dimensional mathematical model of anti-trawl bed scour is established, the flow velocity and sediment particle size are controlled, the scour of sand bed around trawl bed foundation under different conditions is simulated, and the trend of maximum scour depth of anti-trawl bed foundation with these two factors is analyzed. The results show that the depth of scour pit increases with the increase of current velocity, and the deepening speed of scour pit slows down with the increase of velocity, and finally reaches the balance of scouring and silting. At the same time, due to the complexity and variability of the seafloor environment, there are some differences between the model and the actual situation, and further optimization needs to be carried out in the follow-up research.
【作者單位】： 國家深�；毓芾碇行�;青島科技大學機電工程學院;
【基金】：“泰山學者工程”專項經(jīng)費項目資助(tspd 20161007)
【分類號】：P715
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本文編號：2498105