Leonardo Patricio Chamorro Chavez

20062019
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Research Output 2006 2019

2019

Dynamics of flexible plates and flow under impulsive oscillation

Kim, J. T., Jin, Y. & Chamorro Chavez, L. P., May 2019, In : Journal of Fluids and Structures. 87, p. 319-333 15 p.

Research output: Contribution to journalArticle

Velocity measurement
Water tanks
Aspect ratio

Exploring wind farms with alternating two- and three-bladed wind turbines

Hayat, I., Chatterjee, T., Liu, H., Peet, Y. T. & Chamorro Chavez, L. P., Aug 2019, In : Renewable Energy. 138, p. 764-774 11 p.

Research output: Contribution to journalArticle

Wind turbines
Farms
Turbines
Turbulence
Large eddy simulation

Flow-induced motions of flexible plates: Fluttering, twisting and orbital modes

Jin, Y., Kim, J. T., Fu, S. & Chamorro Chavez, L. P., Apr 10 2019, In : Journal of Fluid Mechanics. 864, p. 273-285 13 p.

Research output: Contribution to journalArticle

twisting
orbitals
Velocity measurement
Equations of motion
Aerodynamics

Lagrangian description of the unsteady flow induced by a single pulse of a jellyfish

Kim, J. T. & Chamorro Chavez, L. P., Jun 6 2019, In : Physical Review Fluids. 4, 6, 064605.

Research output: Contribution to journalArticle

Unsteady Flow
Unsteady flow
Brownian movement
Wake
Brownian motion

Modulation of turbulence scales passing through the rotor of a wind turbine

Tobin, N. & Chamorro Chavez, L. P., Jan 2 2019, In : Journal of Turbulence. 20, 1, p. 21-31 11 p.

Research output: Contribution to journalArticle

wind turbines
Wind turbines
rotors
Turbulence
Rotors

On the large- and small-scale motions in a separated, turbulent-boundary-layer flow

Dharmarathne, S., Bocanegra Evans, H., Hamed, A. M., Aksak, B., Chamorro, L. P., Tutkun, M., Doosttalab, A. & Castillo, L., Sep 2 2019, In : Journal of Turbulence. 20, 9, p. 563-576 14 p.

Research output: Contribution to journalArticle

boundary layer flow
Boundary layer flow
turbulent boundary layer
Kinetic energy
separated flow

Spatiotemporal correlations in the power output of wind farms: On the impact of atmospheric stability

Tobin, N., Lavely, A., Schmitz, S. & Chamorro Chavez, L. P., Apr 19 2019, In : Energies. 12, 8, 1486.

Research output: Contribution to journalArticle

Open Access
Turbine
Farms
Turbines
Wake
Output

Wake and power fluctuations of a model wind turbine subjected to pitch and roll oscillations

Fu, S., Jin, Y., Zheng, Y. & Chamorro, L. P., Nov 1 2019, In : Applied Energy. 253, 113605.

Research output: Contribution to journalArticle

wind turbine
Wind turbines
oscillation
Momentum
Turbines
2018

A leading-edge alula-inspired device (LEAD) for stall mitigation and lift enhancement for low Reynolds number finite wings

Ito, M. R., Duan, C., Chamorro Chavez, L. P. & Wissa, A., Jan 1 2018, Mechanics and Behavior of Active Materials; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting; Emerging Technologies. American Society of Mechanical Engineers (ASME), (ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2018; vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Reynolds number
Birds
Vortex flow
Flow separation
Angle of attack

Effects of multiple trapezoidal vortex generators on flow and surface cooling

Park, J., Alvarado, J. L., Chamorro Chavez, L. P. & Marsh, C. P., Jan 1 2018, In : International Heat Transfer Conference. 2018-August, p. 3005-3014 10 p.

Research output: Contribution to journalConference article

surface cooling
vortex generators
Gas generators
Vortex flow
Cooling

Engineered bio-inspired coating for passive flow control

Evans, H. B., Hamed, A. M., Gorumlu, S., Doosttalab, A., Aksak, B., Chamorro, L. P. & Castillo, L., Feb 6 2018, In : Proceedings of the National Academy of Sciences of the United States of America. 115, 6, p. 1210-1214 5 p.

Research output: Contribution to journalArticle

coatings
bubbles
modulation
bluff bodies
separated flow

Flow around an autonomous underwater vehicle with bio-inspired coating

Watkins, S., Montoya-Segnini, J., Aksak, B., Gorumlu, S., Kazemi, A., Curet, O., Evans, H. B., Chamorro, L. P., Carbajal, G. & Castillo, L., Jan 1 2018, 16th LACCEI International Multi-Conference for Engineering, Education Caribbean Conference for Engineering and Technology: Innovation, Education, and Inclusion. Latin American and Caribbean Consortium of Engineering Institutions, (Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology; vol. 2018-July).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Autonomous underwater vehicles
expenditures
Flow separation
energy
Coatings

Flow-induced oscillations of low-aspect-ratio flexible plates with various tip geometries

Jin, Y., Kim, J. T., Hong, L. & Chamorro Chavez, L. P., Sep 1 2018, In : Physics of Fluids. 30, 9, 097102.

Research output: Contribution to journalArticle

low aspect ratio
Velocity measurement
Aspect ratio
oscillations
Geometry

Flow modulation by a mushroom-like coating around the separation region of a wind-turbine airfoil section

Doosttalab, A., Dharmarathne, S., Bocanegra Evans, H., Hamed, A. M., Gorumlu, S., Aksak, B., Chamorro Chavez, L. P., Tutkun, M. & Castillo, L., Jul 1 2018, In : Journal of Renewable and Sustainable Energy. 10, 4, 043305.

Research output: Contribution to journalArticle

Airfoils
Wind turbines
Modulation
Coatings
Velocity measurement

Instability-driven frequency decoupling between structure dynamics and wake fluctuations

Jin, Y., Kim, J. T. & Chamorro Chavez, L. P., Apr 13 2018, In : Physical Review Fluids. 3, 4, 044701.

Research output: Contribution to journalArticle

Wake
Decoupling
Fluctuations
Vortex Shedding
Vortex shedding

Lagrangian acceleration in Rayleigh-Bénard convection at various aspect ratios

Kim, J. T., Shen, S., Dimarco, S. L., Jin, Y. & Chamorro Chavez, L. P., Nov 2018, In : Physical Review Fluids. 3, 11, 113501.

Research output: Contribution to journalArticle

Rayleigh
Aspect Ratio
Convection
Aspect ratio
Vertical

On the dynamics of flexible plates under rotational motions

Fu, S., Jin, Y., Kim, J. T., Mao, Z., Zheng, Y. & Chamorro, L. P., Dec 1 2018, In : Energies. 11, 12, 3384.

Research output: Contribution to journalArticle

Motion
Turbulence
Stiffness
Velocity measurement
Reconfiguration

On the evolution of the integral time scale within wind farms

Liu, H., Hayat, I., Jin, Y. & Chamorro Chavez, L. P., Jan 2018, In : Energies. 11, 1, 93.

Research output: Contribution to journalArticle

Farms
Time Scales
Turbine
Turbines
Layout

On the Kelvin–Helmholtz and von Kármán vortices in the near-wake of semicircular cylinders with flaps

Liu, B., Hamed, A. M. & Chamorro Chavez, L. P., Jan 2 2018, In : Journal of Turbulence. 19, 1, p. 61-71 11 p.

Research output: Contribution to journalArticle

near wakes
Flaps
Vortex flow
vortices
Reynolds number

Turbulence coherence and its impact on wind-farm power fluctuations

Tobin, N. & Chamorro, L. P., Nov 25 2018, In : Journal of Fluid Mechanics. 855, p. 1116-1129 14 p.

Research output: Contribution to journalArticle

turbines
Farms
Turbulence
Turbines
turbulence

Turbulence-driven reverse lift on two-dimensional and three-dimensional structures

Jin, Y., Yan, L., Qiu, H. & Chamorro Chavez, L. P., Sep 6 2018, In : Physical Review E. 98, 3

Research output: Contribution to journalArticle

Reverse
Turbulence
turbulence
Three-dimensional
Deflection

Turbulent boundary layer around 2D permeable and impermeable obstacles

Hamed, A. M. & Chamorro Chavez, L. P., Sep 1 2018, In : Experiments in Fluids. 59, 9, 134.

Research output: Contribution to journalArticle

Facings
turbulent boundary layer
Boundary layers
Shear stress
Momentum
Wake
Surface Roughness
Aspect Ratio
Aspect ratio
Surface roughness
2017

An experimental study of an airfoil with a bio-inspired leading edge device at high angles of attack

Mandadzhiev, B. A., Lynch, M. K., Chamorro Chavez, L. P. & Wissa, A., Aug 17 2017, In : Smart Materials and Structures. 26, 9, 094008.

Research output: Contribution to journalArticle

angle of attack
airfoils
Angle of attack
leading edges
Airfoils

Characterisation of the Eulerian and Lagrangian accelerations in the intermediate field of turbulent circular jets

Kim, J. T., Liberzon, A. & Chamorro, L. P., Jan 2 2017, In : Journal of Turbulence. 18, 1, p. 87-102 16 p.

Research output: Contribution to journalArticle

probability density functions
Probability density function
Vorticity
vorticity
Pipe

Characterization of tab-induced counter-rotating vortex pair for mixing applications

Park, J., Pagan-Vazquez, A., Alvarado, J. L., Chamorro Chavez, L. P., Lux, S. M. & Marsh, C. P., Mar 1 2017, In : Journal of Fluids Engineering, Transactions of the ASME. 139, 3, 031102.

Research output: Contribution to journalArticle

Vortex flow
Smoke
Flow fields
Reynolds number
Visualization

Flow around a semicircular cylinder with passive flow control mechanisms

Hamed, A. M., Vega, J., Liu, B. & Chamorro Chavez, L. P., Mar 1 2017, In : Experiments in Fluids. 58, 3, 22.

Research output: Contribution to journalArticle

Flaps
Flow control
Drag
Turbulence
Drag reduction

Fractional Flow Speed-Up from Porous Windbreaks for Enhanced Wind-Turbine Power

Tobin, N., Hamed, A. M. & Chamorro Chavez, L. P., May 1 2017, In : Boundary-Layer Meteorology. 163, 2, p. 253-271 19 p.

Research output: Contribution to journalArticle

wind turbine
turbine
wind tunnel
turbulent boundary layer
wind farm

Hydraulic turbines

Arndt, R. E. A. & Chamorro Chavez, L. P., Jan 1 2017, Energy Conversion, Second Edition. CRC Press, p. 257-279 23 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Hydraulic turbines
Potential energy
Economics
Water

Impact of height heterogeneity on canopy turbulence

Hamed, A. M., Sadowski, M. J., Nepf, H. M. & Chamorro, L. P., Feb 25 2017, In : Journal of Fluid Mechanics. 813, p. 1176-1196 21 p.

Research output: Contribution to journalArticle

canopies
Turbulence
turbulence
Froude number
Kinetic energy

Influence of vortical structure impingement on the oscillation and rotation of flat plates

Liu, B., Hamed, A. M., Jin, Y. & Chamorro Chavez, L. P., Apr 1 2017, In : Journal of Fluids and Structures. 70, p. 417-427 11 p.

Research output: Contribution to journalArticle

Vortex flow
Tachometers
Gyroscopes
Flow measurement
Accelerometers

Modulation of aerodynamic force on a 2D elliptic body via passive splitter pitching under high turbulence

Jin, Y., Hayat, I. & Chamorro Chavez, L. P., Oct 2017, In : Journal of Fluids and Structures. 74, p. 205-213 9 p.

Research output: Contribution to journalArticle

Aerodynamics
Turbulence
Modulation
Vortex shedding
Drag

On the dynamics of three-dimensional slung prisms under very low and high turbulence flows

Jin, Y. & Chamorro Chavez, L. P., Apr 10 2017, In : Journal of Fluid Mechanics. 816, p. 468-480 13 p.

Research output: Contribution to journalArticle

low turbulence
Slings
Prisms
prisms
Turbulence

Passive pitching of splitters in the trailing edge of elliptic cylinders

Jin, Y. & Chamorro Chavez, L. P., Sep 10 2017, In : Journal of Fluid Mechanics. 826, p. 363-375 13 p.

Research output: Contribution to journalArticle

trailing edges
wakes
Vortex shedding
Angle of attack
vortex shedding

Towards uncovering the structure of power fluctuations of wind farms

Liu, H., Jin, Y., Tobin, N. & Chamorro, L. P., Dec 26 2017, In : Physical Review E. 96, 6, 063117.

Research output: Contribution to journalArticle

turbines
Turbine
Fluctuations
advection
Turbulence

Turbulent boundary layer response to large-scale wavy topographies

Hamed, A. M., Castillo, L. & Chamorro Chavez, L. P., Jun 1 2017, In : Physics of fluids. 29, 6, 065113.

Research output: Contribution to journalArticle

turbulent boundary layer
Topography
topography
Boundary layers
Reynolds stress

Vortical structures in the near wake of tabs with various geometries

Hamed, A. M., Pagan-Vazquez, A., Khovalyg, D., Zhang, Z. & Chamorro Chavez, L. P., Aug 25 2017, In : Journal of Fluid Mechanics. 825, p. 167-188 22 p.

Research output: Contribution to journalArticle

near wakes
Vortex flow
vortices
counters
Geometry

Windbreak effects within infinite wind farms

Tobin, N. & Chamorro Chavez, L. P., Aug 2017, In : Energies. 10, 8, 1140.

Research output: Contribution to journalArticle

Farms
Turbine
Spacing
Boundary Layer
Boundary layers
2016

A Comparative Analysis on the Response of a Wind-Turbine Model to Atmospheric and Terrain Effects

Howard, K. B., Chamorro, L. P. & Guala, M., Feb 1 2016, In : Boundary-Layer Meteorology. 158, 2, p. 229-255 27 p.

Research output: Contribution to journalArticle

wind turbine
turbine
thermal regime
boundary layer
analysis

Alula-inspired leading edge device for low Reynolds number flight

Mandadzhiev, B. A., Lynch, M. K., Chamorro Chavez, L. P. & Wissa, A., Jan 1 2016, Modeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting. American Society of Mechanical Engineers, V002T06A016. (ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2016; vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Reynolds number
Angle of attack
Drag coefficient
Aerodynamics
Airfoils

Effects of freestream turbulence in a model wind turbine wake

Jin, Y., Liu, H., Aggarwal, R., Singh, A. & Chamorro, L. P., Oct 2016, In : Energies. 9, 10, 830.

Research output: Contribution to journalArticle

Wind Turbine
Wake
Wind turbines
Turbulence
Rotor

On the Lagrangian features of circular and semicircular jets via 3D Particle Tracking Velocimetry

Kim, J. T., Zhang, Z., Liberzon, A., Zhang, Y. & Chamorro, L. P., Oct 1 2016, In : Experimental Thermal and Fluid Science. 77, p. 306-316 11 p.

Research output: Contribution to journalArticle

Velocity measurement
Pipe
Trajectories
Gaussian distribution
Probability density function

On the near-wall effects induced by an axial-flow rotor

Möller, N. J., Kim, H., Neary, V. S., García, M. H. & Chamorro, L. P., Jun 1 2016, In : Renewable Energy. 91, p. 524-530 7 p.

Research output: Contribution to journalArticle

Axial flow
Rotors
Shear stress
Turbulence
Open channel flow

On the role of thickness ratio and location of axis of rotation in the flat plate motions

Jin, Y., Ji, S., Liu, B. & Chamorro Chavez, L. P., Jul 1 2016, In : Journal of Fluids and Structures. 64, p. 127-137 11 p.

Research output: Contribution to journalArticle

Tachometers
Vortex shedding
Angular velocity
Telemetering
Flow velocity

Spectral energy cascade of body rotations and oscillations under turbulence

Jin, Y., Ji, S. & Chamorro Chavez, L. P., Dec 12 2016, In : Physical Review E. 94, 6, 063105.

Research output: Contribution to journalArticle

Cascade
Turbulence
cascades
turbulence
Oscillation

Three-dimensional particle tracking velocimetry for turbulence applications: Case of a jet flow

Kim, J. T., Kim, D., Liberzon, A. & Chamorro, L. P., Feb 27 2016, In : Journal of Visualized Experiments. 2016, 108, e53745.

Research output: Contribution to journalArticle

Rheology
Velocity measurement
Turbulence
High speed cameras
Flow measurement

Transition to turbulence over 2D and 3D periodic large-scale roughnesses

Hamed, A. M., Sadowski, M., Zhang, Z. & Chamorro Chavez, L. P., Oct 10 2016, In : Journal of Fluid Mechanics. 804, p. R6

Research output: Contribution to journalArticle

Turbulence
roughness
Surface roughness
turbulence
disturbances
2015

An experimental study on the effects of winglets on the wake and performance of a modelwind turbine

Tobin, N., Hamed, A. M. & Chamorro Chavez, L. P., Jan 1 2015, In : Energies. 8, 10, p. 11955-11972 18 p.

Research output: Contribution to journalArticle

Turbine
Wake
Experimental Study
Turbines
Vortex

Characterizing the response of a wind turbine model under complex inflow conditions

Howard, K. B., Hu, J. S., Chamorro Chavez, L. P. & Guala, M., Apr 1 2015, In : Wind Energy. 18, 4, p. 729-743 15 p.

Research output: Contribution to journalArticle

Wind turbines
Turbines
Rotors
Angular velocity
Flow structure

Detection of tip-vortex signatures behind a 2.5MW wind turbine

Toloui, M., Chamorro Chavez, L. P. & Hong, J., Aug 1 2015, In : Journal of Wind Engineering and Industrial Aerodynamics. 143, p. 105-112 8 p.

Research output: Contribution to journalArticle

Wind turbines
Vortex flow
Turbines
Anemometers
Atmospheric boundary layer