海上网箱养鱼药浴中双氧水扩散分析

Analysis of the Hydrogen Peroxide Diffusion in Marine Net Cages

为了获得网箱养鱼药浴后双氧水浓度的变化过程及其对附近海域环境的影响,该研究采用对流扩散模型,结合波流共同作用下的物质扩散系数,通过简化建立了单向流和往复流作用下投放点附近各位置双氧水浓度随时间变化的规律。结果表明,流速较大的情况下,1d内多次投放也不会在养殖区形成长久一定浓度的海水。考虑往复流理想情况下也不会在养殖区形成长久的一定浓度的海水,反向流作用下的浓度相对正向流时该点的浓度峰值可忽略。

In order to obtain the changing process of hydrogen peroxide concentration and its influence on the environment of the sea area, through applying the convection diffusion model combined with the diffusion coefficients under wave and current, this paper established the analytical solution of hydrogen peroxide concentration under the action of the unidirectional flow and reciprocating flow by simplifying some conditions. The results show that delivering many times in a day will not form a long-term hydrogen peroxide concentration in the breeding area for larger flow relocity.Considering the ideal condition of the breeding area will not form.The peak value reciprocating flow, a long-term hydrogen peroxide concentration in the of concentration under the action of the reverse flow can be neglected compared to the forward flow.