Abstract
This study reports the experimental results of velocity measurements in an embayment with two entrances. The typical flow patterns were revealed in the embayment with two entrances. The flow patterns in the embayment were extremely changed by narrowing the entrance width. The flow mechanism is divided into two groups according to the interaction at the interface between main channel and embayment. The general flow for this kind of semi open embayment is from upstream entrance to downstream entrance. The exceptional of flow in the embayment is characterized by a limited configuration of downstream entrance in carrying the momentum into the embayment.
