▌Keynote speakers
Dr. Norio Tanaka, Saitama University, Japan
Title: Hybrid defense system for inundating tsunami current or overbank flow from a river
Abstract:
Not only engineered structures, but also vegetation buffers and the vegetation-embankment hybrid structures have been increasingly paid attention as mitigation measures against a tsunami inundation or overflowing water from a river. The lecture introduces the effectiveness to reduce the energy and erosion in association with destructiveness and controlling of floating debris accumulation revealed by post disaster survey, numerical simulation, and experiments.
Dr.-Ing. Holger Schüttrumpf, RWTH Aachen University, Germany
Title: Experiences and observations from the Flood Disaster 2021 in Germany
Abstract:
In the summer of 2021, the Ahr valley in Germany was devastated by a very severe flood event. In July 2021, 133 people lost their lives in the Ahr valley alone, over 750 people were injured and thousands were affected by the flood. The lecture is intended to identify lessons learnt and options for actions that need to be drawn for the region but also for other flood affected areas.
Prof. Jain S.K., IIT Roorkee, India
Title: Applications of Systems Analysis Techniques to Resolve Inter-State Water Sharing Disputes
Abstract:
Disputes in sharing water resources of a river basin do arise among the co-basin states. As per the law, tribunals are constituted to resolve the disputes. The tribunals typically hear their views and declare their awards. However, to satisfactorily settle dispute, it is important that the hydro infrastructure is operated such that all the concerned states get their fair share in space. The present talk aims to demonstrate how the systems analysis techniques can be employed to achieve this end.
Dr. Adrian Wing-Keung Law, NTU, Singapore
Title: UAV-based Remote Sensing of Water Quality in Coastal Environment for Engineering Applications
Abstract:
Remote sensing of water quality using survey-grade UAVs holds tremendous potential for engineering applications in the coastal hydro-environment. Furthermore, the measurement accuracy needs to be quantified for decision support in engineering applications beyond the common classification and detection for scientific discovery. In this talk, recent field experience in the coastal environment of Singapore shall be presented based on engineering surveys using portable unmanned aerial vehicles (pUAVs) carrying a heavyweight spectral sensor.
Prof. Mujumdar P. P., IISc Bangalore, India
Title: Urban Floods in India : An Emerging Hydrologic Challenge
Abstract
The Chennai floods of 2015, Bangalore floods of October-November 2021 and Mumbai floods almost every year in recent times. Mitigating the impacts of floods is important. An integrated approach towards mitigation of urban flood impacts should provide quantitative assessment of risk, vulnerability and resilience to develop implementable structural, non-structural and adaptation measures. A collaborative effort between state government agencies, municipal bodies and an academic institute has resulted in pilot scale implementation of real-time data acquisition, coupled weather-hydrologic models with high resolution data and a mobile application for information dissemination. A summary of this work are provided in this talk.
Prof. Alexander Babanin, University of Melbourne, Australia.
Title:
Ocean Waves as a Link Between Metocean Time Scales: Turbulence, Waves, Weather, Climate; and Between Environments: Deep Water, Coasts, Marginal Ice Zone
Abstract:
Until recently, large-scale models did not explicitly take account of ocean surface waves which are a process of much smaller scales. However, it is rapidly becoming clear that many large-scale geophysical processes are essentially coupled with the surface waves, ocean circulation, etc. In the presentation, wave-induced influences at the ocean side will be discussed. Theory and practical applications for the wave-induced turbulence will be reviewed in the presentation.
Prof. Ram Balachandar, University of Windsor, Canada
Title: The need for and characterization of fully developed flow in open channels
Abstract:
Turbulent boundary layers (TBLs) have been the focus of pioneering research since the nineteenth century. Two-component planar PIV is used to study the characteristics of fully developed smooth open channel flow at constant Reynolds number of 3.9 ×104. The Reynolds stresses and higher-order moments are used as indicators to establish the fully developed state. Flow properties are explored by identifying uniform momentum zones (UMZs) using probability density function of streamwise velocities. The instances are grouped based on the number of UMZs (NUMZ) and conditional averaging of flow variables of each group is used to evaluate the variation in flow properties between the developed and the developing flow. Large-scale ejections are found in the logarithmic layer when NUMZ is higher whereas a lower number indicates existence of large-scale sweeping motions.