直交流中の鉛直円柱に作用する流体力低減アクチュエータの性能評価

抄録

In these days, there are many reports about marine development in several countries especially Japan and Norway. In this paper, we researched for the unsteady fluid lift force on S.F.T modeled by circular cylinder caused by vortex and examined air spouting type actuator for reduction of this unsteady fluid lift force. We can recognize that this actuator has ability to reduce (C_ln) at some parameters (void fraction, oscillation ratio, non-dimensioned velocity, oscillation frequency, spouting patterns) but made C_dn increased. So that, we propose the most appropriate parameters to reduce C_ln and increased C_dn at minimum experimentally.