FLOW-FIELD MEASUREMENT DEVICE AND FLOW-FIELD MEASUREMENT METHOD

摘要

A flow-field measurement device that makes it possible to properly measure a flow field even in an environment that changes at a rate of approximately several Hertz. This flow-field measurement device includes a measurement unit that measures the flow velocity of fluid at a plurality of different measurement points in a plurality of measurement directions from a plurality of measurement positions on the bottom of a ship, and a flow-field calculation unit that calculates flow velocities at each of a plurality of target positions in the fluid by combining flow velocity components at a plurality of element positions located in the vicinities of the target positions. Each of the element positions is one of the predetermined measurement points on the predetermined measurement directions, and the flow velocity components are the flow velocity components measured at each of the element positions by the measurement unit.