Numerical study of lift and drag coefficients on a ground-mounted photo-voltaic solar panel

Agarwal, Ashish; Irtaza, Hassan; Zameel, Azhar

doi:10.1016/j.matpr.2017.06.274

Cited by 8 publications

(5 citation statements)

References 1 publication

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“…Hassan et al [5] analyzed the wind pressure distribution of photovoltaic panels in different wind directions. Agarwal et al [6] found that the maximum and minimum values of the windward lift coefficient appeared when inclination is 60° and 90° respectively; Jubayer et al [7] studied the wind pressure of PV panels at different windward angles, and found that the largest force is at 0° and 180° while the moment is at 45° and 135°. Shademan et al [8] found that proper longitudinal spacing can minimize lift coefficient.…”

Section: Introductionmentioning

confidence: 99%

Study on Geese Array Effect and Optimal Layout of Herringbone PV array

Liu

2022

J. Phys.: Conf. Ser.

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Layout parameters play a significant role in wind loads of PV array. In view of this, wind loads of the herringbone PV array composed of 9 panels under five array angles (30°,40°,45°,50°,60°), five installation angles (30°,40°,45°,50°,60°) and five array distances (1.5m,1.75m,2m,2.25m,2.5m), are investigated by using the SST k-ω turbulence model and unsteady RANS approach. Then laws of wind pressure subjected to parameters are evaluated by drawing the contour and boxplot. Results show that: in the construction of herringbone photovoltaic panels, array angle is preferably not greater than 45°, installation inclination angle is not greater than 50°, and optimal array distance is between 1.75m and 2.5m. It is expected to provide theoretical basis and scientific guidance for layout of the herringbone array and sand control in desert areas.

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Section: Introductionmentioning

confidence: 99%

Study on Geese Array Effect and Optimal Layout of Herringbone PV array

Liu

2022

J. Phys.: Conf. Ser.

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“…The results showed that the peak wind loads were significantly affected by the geometric scale and lack of large-scale turbulence. A numerical study of lift and drag coefficients on a ground-mounted photovoltaic solar panel in various wind directions was performed by Agarwal et al [14]. They reported that the maximum positive and negative wind pressure coefficient found at the wind incident angle of 60°and 90°on the windward side of the panel and the angle of 0°and 45°on the leeward side, respectively.…”

Section: Introductionmentioning

confidence: 99%

Experimental evaluation of wind loads on a ground-mounted solar panel of various ground clearances and Reynolds numbers

Yemenici

2021

Sādhanā

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The wind loads on a stand-alone solar panel and flow field behind the panel were experimentally investigated in a wind tunnel under the influence of ground clearance and Reynolds number. The experiments were carried out at the chord Reynolds number of 6.4910 4 , 9.6910 4 , and 1.3910 5 encompassing turbulent flows and dimensionless ground clearance of 0, 0.5 and 0.6. The velocity and turbulence intensities were measured by a constant-temperature hot wire anemometer, and a pressure scanner system was used to static pressure measurements. It was found that the wind loads on the solar panel increased with ground clearance, while changed within a range of the uncertainties of the method with Reynolds number. So, the design-relevant wind loads were independent of the Reynolds number for the present test configurations, but they were significantly affected by the ground clearance. The velocity profiles demonstrated that the length of the recirculation region behind the panel increased with the reduction of the ground clearance, while decreased from the middle of the panel to the near edges, which is consistent with the pressure measurements.

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“…These findings have been confirmed by wind tunnel testing. The CFD simulation used for the 30° inclined freestanding PV array, which is susceptible to a variable wind rate from the front of the array to the back of the array at the interval of fifteen degrees, also estimated wind subjected angles resulting to maximum pressure over arrays [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…The difference between this research and the research in [8][9][10][11], which are in the field of numerical analysis, is that these research used the ANSYS program, the well-known software for most mechanical and thermal engineering researchers, and that our research used another program which is COMSOL Multiphysics. In this software, it is possible to create all mechanical designs within the software with the introduction of all variable's parameters, and constants, in addition to that, it is possible to change the arithmetic equations that are used in the numerical calculation.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of a Ground-Supported Solar Panel PV Array Subjected to Periodic Flow

Sharif

2021

NTU-JRE

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Detailed numerical modeling and research were conducted to assess the influence of wind loads on various solar arrays using commercial software such as Ansys. A large amount of damage has been recorded from solar arrays and mounting frames worldwide owing to strong winds. This paper exemplifies the analysis of displacement and stresses of the structure due to strong wind flow and wind load around the solar panel. Since the solar panels are located in the same panel array at the same spacing, we assume that periodic flow conditions can be applied in the flow direction. The model displays a flow field with a free flow velocity of 10 m/s , 25 m/s, and 50 m/s and calculates the resulting structural stresses and displacements. This model uses two other studies. Initially, Turbulent Flow, a k? physical interface, is used to resolve turbulence around the solar panel. The other uses the Solid Structure physical interface to resolve structural stresses and displacements. Fluid Structure Interaction, Fixed Geometry Multiple physical coupling features are used to connect the boundary load of a fluid flow to a solid region in the fluid region. It corresponds to unidirectional fluid structure interaction analysis..

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Numerical study of lift and drag coefficients on a ground-mounted photo-voltaic solar panel

Cited by 8 publications

References 1 publication

Study on Geese Array Effect and Optimal Layout of Herringbone PV array

Study on Geese Array Effect and Optimal Layout of Herringbone PV array

Experimental evaluation of wind loads on a ground-mounted solar panel of various ground clearances and Reynolds numbers

Numerical Simulation of a Ground-Supported Solar Panel PV Array Subjected to Periodic Flow

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