论文部分内容阅读
为防止钉螺随河渠水系扩散，必须研究动水中钉螺运动规律，通过试验研究测试了钉螺吸附在水槽底和边壁上时的起动流速；应用河流动力学和生物力学理论推导了吸附状态下钉螺起动流速公式；研究分析了影响钉螺起动流速的各种因素。结果表明，由于钉螺具有较强的吸附能力，它在开厣吸附状态下的起动流速要远大于它在闭厣无吸附状态下的起动流速，但由于钉螺生物特性个体差异较大，吸附状态下钉螺的起动流速有一个较大的变化范围。
In order to prevent the snail from spreading along the canal water system, the movement of Oncomelania snails must be studied, and the start-up flow rate of the snails on the bottom and side walls of the tank was tested through the experimental research. The snail-start was deduced from the theory of river dynamics and biomechanics Flow rate formula; Studied and analyzed various factors that affect snail start-up flow rate. The results showed that because of its strong adsorption capacity, snail had a much higher initial flow rate in the open state than in the closed state with no adsorption. However, due to the large difference in individual biological characteristics of snail, Snail start-up flow rate has a larger range of changes.