CAJ | 학술논문

　　模型试验是测定渔具作业性能的重要手段之一,但模型试验结果是否能客观反映网具在实际作业过程中的性能是一个值得关注的问题,需要进行比较评估。本研究通过多元线性模型标准化下纲沉降速度和沉降深度,并分析比较了海上实测数据和模型网具的试验结果。结果表明：(1)标准化后的模型围网平均沉降速度(0.118～0.135 m/s)超过实物网平均沉降速度(0.142～0.153 m/s)80%以上；(2)标准化后的实物网平均沉降深度(150.11～167.14 m)为模型网的平均沉降深度(266.89～275.62 m)的57%～60%；(3)在不考虑各层水流流速的情况下,实物网平均沉降深度拟合值(171.93～179.69 m)为模型网平均沉降深度拟合值的64%～65%；(4)相较于其他水层,130 m水层的流速对于实物网的沉降深度起到重要作用。本研究旨在评估模型试验是否能够客观反映实物网的沉降性能,以便为今后金枪鱼围网的沉降性能研究提供科学依据。
　　모형시험시측정어구작업성능적중요수단지일,단모형시험결과시부능객관반영망구재실제작업과정중적성능시일개치득관주적문제,수요진행비교평고。본연구통과다원선성모형표준화하강침강속도화침강심도,병분석비교료해상실측수거화모형망구적시험결과。결과표명：(1)표준화후적모형위망평균침강속도(0.118～0.135 m/s)초과실물망평균침강속도(0.142～0.153 m/s)80%이상；(2)표준화후적실물망평균침강심도(150.11～167.14 m)위모형망적평균침강심도(266.89～275.62 m)적57%～60%；(3)재불고필각층수류류속적정황하,실물망평균침강심도의합치(171.93～179.69 m)위모형망평균침강심도의합치적64%～65%；(4)상교우기타수층,130 m수층적류속대우실물망적침강심도기도중요작용。본연구지재평고모형시험시부능구객관반영실물망적침강성능,이편위금후금창어위망적침강성능연구제공과학의거。
Modeling experiment is one of the important tools for analyzing the technological performance of fish-ing gear. However, the performance indicators of net model should be estimated in order to understand if the net model can simulate accurately the full-scale purse seine in the operating condition. This present study standardize the sinking depth and the sinking speed of lead line using multiple linear model and compare the results between the modeling experiment and the in situ measurements. The result shows that: (1) The average sinking velocity (0.118?0.135 m/s) of standardized net model is over 80%of that of full-scale purse seine (0.142?0.153 m/s). (2) The average sinking depth of standardized full-scale purse seine (150.11?167.14 m) is only 57%?60% of net model’s average sinking depth. (3) The average sinking depth of full-scale purse seine (171.93?179.69 m) is only 64%?65%of net model’s average sinking depth when assumed the current velocity is zero in the different layers. (4) The current velocity in the layer 130m is the important factor that has impact on the sinking depth of full-scale purse seine by comparing the current velocity to the other layers.