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实测了环形生态水槽内的流速分布。采用柱坐标系下的k -ε湍流模型及SIMPLE算法 ,对该流场进行了数值模拟。从计算结果和实验资料的分析比较看出 ,计算结果可靠。在此流场内进行了钉螺的运动特点的实验研究 ,结果表明钉螺具有流速敏感性 ,对研究钉螺的随流扩散具有重要意义。
Measured the annular flow distribution within the ecological sink. The k-ε turbulence model in cylindrical coordinate system and SIMPLE algorithm are used to simulate the flow field. From the calculation results and experimental data analysis shows that the calculation results are reliable. The experimental study on the movement characteristics of Oncomelania snails in this flow field shows that the snail has the velocity-sensitivity, which is of great significance for the study of the spread of snails.