The invention provides a method for changing water
wave propagation direction by arranging an
underwater obstacle. The method comprises the steps that 1, the bottom
face size of the
underwater obstacle is determined according to the horizontal span of a target
water area; 2, the specific shape of the
underwater obstacle is determined, wherein the number and distribution positions of data points onan underwater obstacle
bus are set, and the coordinate values, corresponding to the
water depth, of the
radius are calculated according to a
transformation equation; data calculated according to thetransformation equation is substituted into an underwater obstacle height calculation formula, and then the coordinate values of the data points on the corresponding underwater obstacle
bus can be obtained; a
bus curve is drawn according to the coordinate values of the data points, the bus curve is rotated by 360 degrees around the central axis to generate a cone, and then the specific shape of the underwater obstacle is obtained; 3, the underwater obstacle is arranged, wherein the underwater obstacle is manufactured based on the data in the step 2, then the underwater obstacle is placed at the water bottom of the upstream of the target
water area, the water
surface wave propagation direction passing through the underwater obstacle is deflected, and the target
water area is protected against the influence of
waves.