مرجع تخصصی آب و فاضلاب

Hydraulic structures and river works are essential for the development of countries. This is more significant in the millennium development goals owing to scarcity of water for the ever-increasing population of the world. The objective of this conference is to bring together researchers and practitioners to exchange views and experiences on hydraulics of structures associated with rivers and dams. It is further hoped and anticipated that this would lead to a state of the art of the current practice to improve design of hydraulicstructures especially in developing countries. Not overlooking the ever growing need for more enhanced and profound non-structural approaches in water resources management issues, it is deliberated that through such a conference the wealth of knowledge and experience in the field would be shared and the structural aspect of water resources management is given its deserved share in sustainable development of infra-structure. In this respect it is hoped that series of specialised conferences of this nature will continue to be held in future. Hydraulic researchers had been leading air-water flow studies until the mid-1950s. Since progresses have been dominated by multiphase flow experts despite the relevance of “white water” phenomena to hydraulic engineering. In this lecture the writer reviews the basic mechanisms of air entrainment: singular aeration and interfacial entrainment. The relevant instrumentation and data processing technique are detailed. Later recent progresses in unsteady flow measurements and in seawater are discussed