WAVE PRESSURE MEASUREMENT INSTRUMENTATION IN EXPERIMENTAL WATER TANK

摘要

PROBLEM TO BE SOLVED: To calculate acceleration of tracer particles by taking images of multi time tracing by a video camera, and also to calculate the pressure distribution of the fluid based on the approximated acceleration of the fluid. SOLUTION: The personal computer 10 comprises the 1st operation means for calculating the acceleration of tracer particles by image analysis of multi time tracing after high-speed photography with the video camcorder 4 for the tracer particles in the fluid such as flood water on the deck board of the model ship M in the experimental water tank; the 2nd operation means for calculating the pressure gradient based on the fluid acceleration and fluid density, if the acceleration of the tracer particle is approximately equal to the fluid acceleration of the wave 3 in the tank; and the 3rd operation means for calculating the pressure distribution of the fluid by the spatial integration of the pressure gradient. COPYRIGHT: (C)2005,JPO&NCIPI