Experiment Of Cubic Model Of Artificial Reef And Reef Design

With the improvement of the living standard and the decline of marine fishery resources, especially for the inshore fishery resources, the artificial reef is becoming a new increasing point of marine fishery and develops rapidly in the world. However, the artificial reef technology develops more slowly in China than in Japanese, America, and so on. There are a lot of problems to solve.On the basis of hydrodynamics, in order to design a kind of artificial reef, we need to analyze and calculate the hydrodynamic capability of the artificial reef. And in the light of the above, we can choose appropriate places for the artificial reef. This is a very important task in dire need of solving.When an artificial reef is placed in the sea, there are many kinds of forces such as resistance, buoyancy, lumpy wallop, and so forth. The resistance thereof is the most important force, and relates to the roll, subsidence and displacement of the reef. In the terms of its resistance, there is no appropriate formula for all shapes of the reefs. The more fashionable shape of the reef is cube. The reef is generally more than two meters long. The paper systematically analyzes the reef which is three meters long because of its less cost, its multiplication effect and its degree to which it is placed easily.On the basis of several experiments, the article initially elaborates the impact of water current on the artificial reef in the terms of the force. In allusion to this, it probes into the cube reef's forces from different angles in the water. The study shows that the perfect sphere hydrodynamics is also suitable for the cube reef. It is very convenient for our study to provide a theory of probing the cube reef's forces.In the light of the sphere hydrodynamics theory, it is pretty important for the study to find the"automatic model area", thereby the author calculates the force that the experimental model receives in the water. Then based on this, the author calculates the actual resistance of the artificial reef in the sea according to the approximate theory.