DRAFT PLATE FIXING DEVICE WHICH IS SUITABLE TO HIGH SPEED FLOW IN LARGE CAVITATION TUNNEL

摘要

PURPOSE: A draft board fixing device suitable for a high flow within a large cavitation tunnel is provided to enhance the reliability of a test result as the draft board is not tilt to a test unit and generates no vibration and the distribution of a flow flowing into a propeller of a model ship is not changed. CONSTITUTION: A draft board fixing device suitable for a high flow within a large cavitation tunnel comprises a trunk wall surface correcting structure and a draft board fixing structure(18). The trunk wall surface correcting structure corrects a trunk wall surface where the transformation is generated by welding. The draft board fixing structure installs a draft plate between a model ship and a trunk wall surface.