CIRCULATION APPARATUS AND CIRCULATION METHOD FOR INDUCING DOWNWARD FLOW USING AUTO-ROTATING FLOATING PANEL ACCORDING TO WIND DIRECTION AND EKMAN SPIRAL FLOW PRINCIPLE

摘要

The purpose of the present invention is to provide a water current circulation apparatus which induces the descent of a water current by self-rotating in accordance with a wind direction frequently varying in stagnant water bodies such as the stagnant water zones of a reservoir, a lake and a bog, and a river and closed coastal zones, and maximizes a water current circulation effect when maximally receiving surface drift currents by applying the properties of a drift current, thereby reducing eutrophication in the water bodies, preventing the excessive growth of algae, and improving water quality. According to the present invention to accomplish the purpose, a water current circulation apparatus in stagnant water body sections including the stagnant water zones of a reservoir, a lake and a bog, and a river and closed coastal zones comprises: an anchor member fixed to the bed of a water body; a supporting shaft vertical to the water body, installed on the anchor member, and capable of freely rotating; a floating member installed at the upper side of the supporting shaft; a wing blade installed on the upper side of the floating member, and facing wind; and at least one drift current descent inducing member installed at the lower side of the floating member, and inducing a drift current at the surface portion of the water body to descend toward the deep portion of the water body.