%0 Journal Article
%T Experimental Study of Dissolved Oxygen Transport by Regular Waves Through a Perforated Breakwater Experimental Study of Dissolved Oxygen Transport by Regular Waves Through a Perforated Breakwater
%A YIN Zegao
%A YU Ning
%A LIANG Bingchen
%A ZENG Jixiong
%A XIE Shaohua
%J 中国海洋大学学报（英文版）
%D 2016
%X The perforated breakwater is an environmentally friendly coastal structure,and dissolved oxygen concentration levels are an important index to denote water quality.In this paper,oxygen transport experiments with regular waves through a vertical perforated breakwater were conducted.The oxygen scavenger method was used to reduce the dissolved oxygen concentration of inner water body with the chemicals Na_2SO_3 and Co Cl_2.The dissolved oxygen concentration and wave parameters of 36 experimental scenarios were measured with different perforated arrangements and wave conditions.It was found that the oxygen transfer coefficient through wave surface,K_1a_1,is much lower than the oxygen transport coefficient through the perforated breakwater,K_2a_2.If the effect of K_1a_1 is not considered,the dissolved oxygen concentration computation for inner water body will not be greatly affected.Considering the effect of a permeable area ratio α,relative location parameter of perforations δ and wave period T,the aforementioned data of 30 experimental scenarios,the dimensional analysis and the least squares method were used to derive an equation of K_2a_2(K_2a_2=0.0042α~(0.5)δ~(0.2)T~(-1)).It was validated with 6 other experimental scenarios data,which indicates an approximate agreement.Therefore,this equation can be used to compute the DO concentration caused by the water transport through perforated breakwater
%U http://qdhb.cbpt.cnki.net/WKD/WebPublication/paperDigest.aspx?paperID=73df24e7-7717-4f50-923e-bf90e2490169