Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Direct Numerical Simulations of Turbulent Flow over Misaligned Traveling Waves

Journal Article · · International Journal of Heat and Fluid Flow
Direct numerical simulations of turbulent flow over prescribed traveling waves in a half-channel flow setup subject to a combined streamwise and spanwise pressure gradient are performed at a friction Reynolds number of 180. The simulations undertaken in this study consider both flow-aligned (including opposing and following) and misaligned waves as we attempt to quantify the effect of wave misalignment on turbulence statistics, the pressure drag force, and the wave attenuation rate. For the simulations, we consider three characteristic wave age values corresponding to slow-, intermediate-, and fast-moving waves. Wave misalignment is taken into account by applying a spanwise pressure gradient vertical to the traveling waves, which results in a three-dimensional turbulent flow field above the moving waves. Key flow quantities such as the mean velocity, velocity variances, and momentum fluxes are found to vary with the wave parameters, confirming the findings of previous studies.
Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind Energy Technologies Office (EE-4W)
DOE Contract Number:
AC36-08GO28308;
OSTI ID:
1884296
Report Number(s):
NREL/JA-5000-82354; MainId:83127; UUID:f7160335-6abb-4f20-9eb8-dd9d49c7e2e4; MainAdminID:64327
Journal Information:
International Journal of Heat and Fluid Flow, Journal Name: International Journal of Heat and Fluid Flow Vol. 97
Country of Publication:
United States
Language:
English

References (49)

Airflow measurements at a wavy air–water interface using PIV and LIF journal October 2017
Air-Sea Interactions under the Existence of Opposing Swell journal February 2005
The effect of idealized water waves on the turbulence structure and kinetic energy budgets in the overlying airflow journal March 2005
The turbulent airflow over wind generated surface waves journal January 2019
Construction of the discrete geometric conservation law for high-order time-accurate simulations on dynamic meshes journal April 2006
Impact of ocean waves on offshore wind farm power production journal December 2021
Turbulent flow over a flexible wall undergoing a streamwise travelling wave motion journal June 2003
Direct numerical simulations of turbulent channel flow with transverse square bars on one wall journal September 2003
Direct-simulation-based study of turbulent flow over various waving boundaries journal March 2010
On the generation of waves by turbulent wind journal July 1957
On the generation of surface waves by shear flows journal November 1957
The mechanics of an organized wave in turbulent shear flow journal April 1970
On the structure of turbulent flow over a progressive water wave: theory and experiment in a transformed, wave-following co-ordinate system journal April 1981
Measurements of the wind-wave energy flux in an opposing wind journal February 1985
A numerical study of the turbulent Ekman layer journal April 1990
Surface-wave generation revisited journal November 1993
Turbulent shear flow over slowly moving waves journal June 1993
Simulation of turbulent flow over idealized water waves journal February 2000
Direct numerical simulation of scalar transport in turbulent flows over progressive surface waves journal April 2017
Wind–wave coupling study using LES of wind and phase-resolved simulation of nonlinear waves journal July 2019
The role of wave kinematics in turbulent flow over waves journal October 2019
Non-equilibrium three-dimensional boundary layers at moderate Reynolds numbers journal November 2019
Surface wave effects on energy transfer in overlying turbulent flow journal April 2020
Momentum flux measurements in the airflow over wind-generated surface waves journal May 2020
A simulation-based mechanistic study of turbulent wind blowing over opposing water waves journal August 2020
Turbulent and wave kinetic energy budgets in the airflow over wind-generated surface waves journal June 2021
A numerical and theoretical study of wind over fast-propagating water waves journal June 2021
On the limiting aerodynamic roughness of the ocean in very strong winds journal January 2004
Direct numerical simulation of a turbulent wind over a wavy water surface journal March 2012
Turbulent flow over water waves in the presence of stratification journal March 2002
Relationship between airflow at the critical height and momentum transfer to the traveling waves journal January 2007
Characteristics of coherent vortical structures in turbulent flows over progressive surface waves journal December 2009
Comparison of direct numerical simulation databases of turbulent channel flow at Re τ = 180 journal January 2014
Large-eddy simulation of offshore wind farm journal February 2014
Direct numerical simulation of a three‐dimensional turbulent boundary layer journal October 1990
Direct numerical simulation of turbulent flow over a wavy wall journal August 1997
Integration of Stiff Equations journal March 1952
Control Volume Finite-Element Method for heat Transfer and Fluid flow Using Colocated Variables— 1. Computational Procedure journal April 1987
ExaWind: A multifidelity modeling and simulation environment for wind energy journal January 2020
Very large-scale motions in turbulent flows over streamwise traveling wavy boundaries journal May 2019
Dynamics of Winds and Currents Coupled to Surface Waves journal January 2010
Wave Breaking in Deep Water journal January 1993
Turbulent flow over Hills and Waves journal January 1998
Wind Stress Vector over Ocean Waves journal November 2003
The Coupled Boundary Layers and Air–Sea Transfer Experiment in Low Winds journal March 2007
Large-Eddy Simulation of Marine Atmospheric Boundary Layers above a Spectrum of Moving Waves journal November 2014
Review of Wind–Wave Coupling Models for Large-Eddy Simulation of the Marine Atmospheric Boundary Layer journal October 2021
Wave Boundary Layer Turbulence over Surface Waves in a Strongly Forced Condition journal March 2015
Structure of the Airflow above Surface Waves journal May 2016