Multiresolution Large-Eddy Simulation of an Array of Hydrokinetic Turbines in a Field-Scale River: The Roosevelt Island Tidal Energy Project in New York City

Saurabh Chawdhary, Dionysios Angelidis, Jonathan Colby, Dean Corren, Lian Shen, Fotis Sotiropoulos

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Marine hydrokinetic (MHK) power generation systems enable harvesting energy from waterways without the need for water impoundment. A major research challenge for numerical simulations of field-scale MHK farms stems from the large disparity in scales between the size of waterway and the energy harvesting device. We propose a large-eddy simulation (LES) framework to perform high-fidelity, multiresolution simulations of MHK arrays in a real-life marine environment using a novel unstructured Cartesian flow solver coupled with a sharp-interface immersed boundary method. The potential of the method as a powerful engineering design tool is demonstrated by applying it to simulate a 30 turbine MHK array under development in the East River in New York City. A virtual model of the MHK power plant is reconstructed from high-resolution bathymetry measurements in the East River and the 30 turbines placed in 10 TriFrame arrangements as designed by Verdant Power. A locally refined, near the individual turbines, background unstructured Cartesian grid enables LES across a range of geometric scales of relevance spanning approximately 5 orders of magnitude. The simulated flow field is compared with a baseline LES of the flow in the East River without turbines. While velocity deficits and increased levels of turbulence kinetic energy are observed in the vicinity of the turbine wakes, away from the turbines as well as on the water surface only a small increase in mean momentum is found. Therefore, our results point to the conclusion that MHK energy harvesting from large rivers is possible without a significant disruption of the river flow.

Original languageEnglish (US)
Pages (from-to)10,188-10,204
JournalWater Resources Research
Volume54
Issue number12
DOIs
StatePublished - Dec 1 2018

Fingerprint

large eddy simulation
turbine
river
energy
impoundment
power generation
river flow
bathymetry
flow field
kinetic energy
simulation
city
project
marine environment
power plant
momentum
turbulence
farm
surface water
engineering

Keywords

  • LES
  • New York
  • energy
  • hydrokinetic turbine
  • simulation
  • tidal flow

Cite this

Multiresolution Large-Eddy Simulation of an Array of Hydrokinetic Turbines in a Field-Scale River : The Roosevelt Island Tidal Energy Project in New York City. / Chawdhary, Saurabh; Angelidis, Dionysios; Colby, Jonathan; Corren, Dean; Shen, Lian; Sotiropoulos, Fotis.

In: Water Resources Research, Vol. 54, No. 12, 01.12.2018, p. 10,188-10,204.

Research output: Contribution to journalArticle

@article{c0f3c7ca77564a63b27f06e97cbc0083,
title = "Multiresolution Large-Eddy Simulation of an Array of Hydrokinetic Turbines in a Field-Scale River: The Roosevelt Island Tidal Energy Project in New York City",
abstract = "Marine hydrokinetic (MHK) power generation systems enable harvesting energy from waterways without the need for water impoundment. A major research challenge for numerical simulations of field-scale MHK farms stems from the large disparity in scales between the size of waterway and the energy harvesting device. We propose a large-eddy simulation (LES) framework to perform high-fidelity, multiresolution simulations of MHK arrays in a real-life marine environment using a novel unstructured Cartesian flow solver coupled with a sharp-interface immersed boundary method. The potential of the method as a powerful engineering design tool is demonstrated by applying it to simulate a 30 turbine MHK array under development in the East River in New York City. A virtual model of the MHK power plant is reconstructed from high-resolution bathymetry measurements in the East River and the 30 turbines placed in 10 TriFrame arrangements as designed by Verdant Power. A locally refined, near the individual turbines, background unstructured Cartesian grid enables LES across a range of geometric scales of relevance spanning approximately 5 orders of magnitude. The simulated flow field is compared with a baseline LES of the flow in the East River without turbines. While velocity deficits and increased levels of turbulence kinetic energy are observed in the vicinity of the turbine wakes, away from the turbines as well as on the water surface only a small increase in mean momentum is found. Therefore, our results point to the conclusion that MHK energy harvesting from large rivers is possible without a significant disruption of the river flow.",
keywords = "LES, New York, energy, hydrokinetic turbine, simulation, tidal flow",
author = "Saurabh Chawdhary and Dionysios Angelidis and Jonathan Colby and Dean Corren and Lian Shen and Fotis Sotiropoulos",
year = "2018",
month = "12",
day = "1",
doi = "10.1029/2018WR023345",
language = "English (US)",
volume = "54",
pages = "10,188--10,204",
journal = "Water Resources Research",
issn = "0043-1397",
publisher = "American Geophysical Union",
number = "12",

}

TY - JOUR

T1 - Multiresolution Large-Eddy Simulation of an Array of Hydrokinetic Turbines in a Field-Scale River

T2 - The Roosevelt Island Tidal Energy Project in New York City

AU - Chawdhary, Saurabh

AU - Angelidis, Dionysios

AU - Colby, Jonathan

AU - Corren, Dean

AU - Shen, Lian

AU - Sotiropoulos, Fotis

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Marine hydrokinetic (MHK) power generation systems enable harvesting energy from waterways without the need for water impoundment. A major research challenge for numerical simulations of field-scale MHK farms stems from the large disparity in scales between the size of waterway and the energy harvesting device. We propose a large-eddy simulation (LES) framework to perform high-fidelity, multiresolution simulations of MHK arrays in a real-life marine environment using a novel unstructured Cartesian flow solver coupled with a sharp-interface immersed boundary method. The potential of the method as a powerful engineering design tool is demonstrated by applying it to simulate a 30 turbine MHK array under development in the East River in New York City. A virtual model of the MHK power plant is reconstructed from high-resolution bathymetry measurements in the East River and the 30 turbines placed in 10 TriFrame arrangements as designed by Verdant Power. A locally refined, near the individual turbines, background unstructured Cartesian grid enables LES across a range of geometric scales of relevance spanning approximately 5 orders of magnitude. The simulated flow field is compared with a baseline LES of the flow in the East River without turbines. While velocity deficits and increased levels of turbulence kinetic energy are observed in the vicinity of the turbine wakes, away from the turbines as well as on the water surface only a small increase in mean momentum is found. Therefore, our results point to the conclusion that MHK energy harvesting from large rivers is possible without a significant disruption of the river flow.

AB - Marine hydrokinetic (MHK) power generation systems enable harvesting energy from waterways without the need for water impoundment. A major research challenge for numerical simulations of field-scale MHK farms stems from the large disparity in scales between the size of waterway and the energy harvesting device. We propose a large-eddy simulation (LES) framework to perform high-fidelity, multiresolution simulations of MHK arrays in a real-life marine environment using a novel unstructured Cartesian flow solver coupled with a sharp-interface immersed boundary method. The potential of the method as a powerful engineering design tool is demonstrated by applying it to simulate a 30 turbine MHK array under development in the East River in New York City. A virtual model of the MHK power plant is reconstructed from high-resolution bathymetry measurements in the East River and the 30 turbines placed in 10 TriFrame arrangements as designed by Verdant Power. A locally refined, near the individual turbines, background unstructured Cartesian grid enables LES across a range of geometric scales of relevance spanning approximately 5 orders of magnitude. The simulated flow field is compared with a baseline LES of the flow in the East River without turbines. While velocity deficits and increased levels of turbulence kinetic energy are observed in the vicinity of the turbine wakes, away from the turbines as well as on the water surface only a small increase in mean momentum is found. Therefore, our results point to the conclusion that MHK energy harvesting from large rivers is possible without a significant disruption of the river flow.

KW - LES

KW - New York

KW - energy

KW - hydrokinetic turbine

KW - simulation

KW - tidal flow

UR - http://www.scopus.com/inward/record.url?scp=85058775207&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85058775207&partnerID=8YFLogxK

U2 - 10.1029/2018WR023345

DO - 10.1029/2018WR023345

M3 - Article

AN - SCOPUS:85058775207

VL - 54

SP - 10,188-10,204

JO - Water Resources Research

JF - Water Resources Research

SN - 0043-1397

IS - 12

ER -