A5016759570- Coastal and Marine Dynamics
- Tropical and Extratropical Cyclones Research
- Coastal wetland ecosystem dynamics
- Ocean Waves and Remote Sensing
- Aeolian processes and effects
- Groundwater flow and contamination studies
- Flood Risk Assessment and Management
- Oceanographic and Atmospheric Processes
- Hydraulic flow and structures
- Hydrological Forecasting Using AI
- Geological formations and processes
- Aquatic and Environmental Studies
- Groundwater and Isotope Geochemistry
- Hydrology and Watershed Management Studies
- Water resources management and optimization
- Water Systems and Optimization
- Fish Ecology and Management Studies
- Reservoir Engineering and Simulation Methods
- Geological Modeling and Analysis
- Hydrology and Sediment Transport Processes
- Water Quality Monitoring Technologies
- Soil and Unsaturated Flow
- Methane Hydrates and Related Phenomena
- Soil Moisture and Remote Sensing
- Water Quality and Resources Studies
NOAA National Water Center
2018-2021
United States Army Corps of Engineers
2020-2021
National Oceanic and Atmospheric Administration
2020
Stevens Institute of Technology
2016-2018
École Polytechnique Fédérale de Lausanne
2008-2013
École Nationale de l’Aviation Civile
2013
U.S. Army Engineer Research and Development Center
2013
University of North Carolina at Chapel Hill
2013
Cornell University
2010
Iran University of Science and Technology
2007-2009
Wave and tide are important forcing factors that typically coexist in coastal environments. A numerical study was conducted to investigate individual combined effects of these forces on flow mixing processes a nearshore subterranean estuary. hydrodynamic model based the shallow water equations used simulate dynamic sea level oscillations driven by wave tide. The oscillating levels determined seaward boundary condition aquifer, where variably saturated, variable density modeled. simulation...
Abstract Numerical simulations of three the most severe historical tropical cyclones to affect Delaware River Basin (DRB) are used evaluate a new numerical approach that is candidate model for inland‐coastal compound flood forecast. This study includes simulating interactions tides/surges, freshwater streamflows, winds, and atmospheric pressure DRB. One‐way coupling between hydrologic (National Water Model [NWM]) ocean/wave (ADvanced CIRCulation model/WAVEWATCH III [ADCIRC/WW3]) models...
Abstract Hydrodynamic models play a key role in simulating total water level (TWL), that is, combination of river flow, tide, surge, wind and wave‐induced level, representing flood inundation dynamics coastal areas. An appropriate selection two‐dimensional (2D) integrate riverine estuarine interactions with ocean is crucial to generate accurate TWL predictions assist stakeholders federal agencies decision making emergency responses. In this study, we compare the performance two widely used...
The hydraulic efficiency of sedimentation basins is reduced by short-circuiting, circulation zones and bottom particle-laden jets. Baffles are used to improve the sediment tank performance. In this study, laboratory experiments were examine hydrodynamics several baffle configurations. An accompanying numerical analysis was performed based on 2-D Reynolds-averaged Navier–Stokes equations along with k-ε turbulence closure model. model supplemented volume-of-fluid technique, advection–diffusion...
Abstract Sea level rise and intense hurricane events make the East Gulf Coasts of United States increasingly vulnerable to flooding, which necessitates development computational models for accurate water simulation in these areas safeguard coastal wellbeing. With this regard, a model framework over transition zone during is built study. The takes advantage National Water Model’s strength simulating rainfall–runoff process, D‐Flow Flexible Mesh’s ability support unstructured grid hydrodynamic...
In this paper the capability of Particle Swarm Optimization (PSO) is employed to deal with an Adaptive Network based Fuzzy Inference System (ANFIS) model's inherent shortcomings extract optimum fuzzy if–then rules in noisy areas arising from application nondimensional variables estimate scour depth. model, a PSO algorithm optimize clustering parameters controlling subtractive while another tune rule associated rules. The objective function Root Mean Square (RMSE), by which model attempts...
In high head dams, the kinetic energy at spillway toe is very and tail-water depth available for dissipation relatively small. Cascade stilling basins are systems design of which based on a trial-and-error procedure. Although such an approach yields feasible designs in hydraulic topographic considerations met, there may exist many cost-effective designs. Therefore, optimization tools can help find least construction cost while keeping satisfied. Particle Swarm Optimization (PSO) Genetic...
Bakhtyar, R., Razmi, A.M., Barry, D.A., Yeganeh-bakhtiary, A. Kees, C.E., and C.T. Miller, 2013. Two-Phase Flow Modeling of the Influence Wave Shapes Bed Slope on Nearshore Hydrodynamics.An Eulerian two-phase flow model (air-water) was used to simulate nearshore hydrodynamic processes driven by wave motion. The field computed with Reynolds-Averaged Navier-Stokes equations in conjunction Volume-Of-Fluid method RNG turbulence-closure scheme. To study effects different shapes surf-swash zone...
The major objective of this study was to develop further understanding 3D nearshore hydrodynamics under a variety wave and tidal forcing conditions.The main tool used comprehensive numerical modelcombining the flow module Delft3D with WAVE solver XBeachof hydro-and morphodynamics that can simulate flow, sediment transport, morphological evolution.Surf-swash zone were modeled using Navier-Stokes equations, combined various turbulence models (k-ε, k-L, ATM H-LES).Sediment transport resulting...