Impact and Mitigation Strategies for Flash Floods Occurrence towards Vehicle Instabilities

Abstract

This chapter presents a flood risk management system for vehicles at roadways, developed from extensive experimental and numerical studies on the impact of flash floods towards vehicle instabilities. The system, easily addressed as FLO-LOW, developed to contradict the assumptions that a vehicle would be able to protect the passengers from the flood impact. Herein the hydrodynamics of flows moving across these roads coupled with the conditions of a static car that would result in vehicle instabilities has been studied. In an attempt to prevent fatalities in commonly flooded areas, permanent structures are installed to warn users regarding water depth at the flooded areas. The existing flood monitoring system only focuses on water conditions in rivers or lake in order to determine risks associated with floods. Thus, there is a need for a better system to understand and quantify a mechanism to determine hydrodynamics instability of a vehicle in floodwaters. FLO-LOW enables the road users to input their vehicle information for a proper estimation of safety limits upon crossing the flood prone area. Preferably, the system enables road users to describe and quantify parameters that might cause their vehicles to become vulnerable to being washed away as they enter the flooded area.

A Review of the Flood Hazard and Risk Management in The South Iran Region, Particularly Konarak, Makoran in Balochestan

“…Amongst natural hazards, the major financial losses with the most death tolls have been reported during floods [14][15][16]. Unfortunately, this trend goes worst when it comes to the less developed industrial based and a low human development index country.…”

“…Therefore, in this regards as well as so in the Makoran, flood study could be said with location of Sarbaz and Kajo rivers the upstream parts of the rivers flow through heavily mountainous and hilly regions while the remainder of rivers flows through broad, flat valleys. The upland, villages landscapes are dominated by a mixed area, which areas comprised of Nannorrhops (Mazari palm trees) and tamarixes etc [14]. Also the upstream half of the rivers below Pishin and Zirdan flood control dams are dominated by coarse gravels, with areas of fines and larger sands also present to a lesser degree.…”

3-Dimensional Numerical Modelling to Assess Geothermal Piles Efficiency in Tropical Countries

“…A commercialized computational fluid dynamics (CFD) software called FLOW-3D was used to conduct the numerical runs. The FLOW-3D is a general purpose CFD software that employs the basics of finite volume method in performing the numerical modelling [22][23][24]. It employs specially developed numerical techniques to solve the equations of motion for fluids to obtain transient, threedimensional solutions to multi-scale, multi-physics flow problems.…”

The Aerodynamic Performance of Tall Buildings by Utilizing Aerodynamic Modifications - A Review Study

“…In the past years, different techniques have been employed to investigate the wind load effects on the tall building. Computational fluid dynamic (CFD) technique is considered one of the most common tools which can produce detailed results [4,5] and describe the wind force distribution along the building [6,7]. This paper comprehensively reviews the previous work on wind load components and motion perception due to wind vibration.…”