关键词: 拖船, 拖曳实验, 船模制作, 海洋牧场

Abstract: Under the dual background of profound adjustments in the global economic landscape and the accelerated development of marine resources， marine aquaculture is becoming an important strategic field for countries to ensure food security and promote economic transformation. In 2025， global economic growth is facing slowdown pressure， with the rise of trade protectionism and the intensification of geopolitical conflicts， leading to the obstruction of traditional trade channels and increased volatility in commodity prices. Against this backdrop， marine aquaculture， with its resource-saving， environmentally friendly， and high-value-added characteristics， has become a key breakthrough to address the “land resource bottleneck” and “food security challenges”. Marine ranching is a promising concept in marine aquaculture. As an indispensable tool in the construction and transportation of marine ranches， tugboats naturally play a crucial role. Therefore， to enhance the efficiency of marine ranch construction and transportation， improving the performance of tugboats and optimizing the towing transportation method are naturally important considerations. Due to the prohibitively high cost of physical testing， small-scale model simulation experiments are an excellent method to explore optimization solutions. This paper elaborates on the establishment of a three-dimensional model of the tugboat and its physical realization process， and conducts comparative experiments with the fabricated model， providing a new perspective for industry engineering design.

Key words: tugboat, towing experiment, model ship making, marine ranch