回流水槽斜航試験による針路安定性の推定について

抄録

In improvement or development of ship form a circulating water channel is very useful. Sometimes development plan that consists of several ship form is contrived. And these ship forms are tested by small models in a circulating water channel. Best one will be selected by qualitative comparison of test results. In this procedure it may be thought to be very important that course stability is checked at this stage. In a circulating water channel oblique towing test is easy to be carried out. Thus the authors present a method to discriminate course stability by oblique towing test results. This method is based on many hydrodynamic derivatives presented by many researchers. According to this method course stability is roughly estimated by center of lateral force when ship is sailing obliquely and fullness Cb/(L/B). Discrimination procedure and some examples applied this method are shown.