2D CFD Simulation Based Analysis of Wind Pressure Variations on Vertical PV Structures Considering Layout and Panel Gap under Frontal Wind

So Yeong Roh; Byoung Jun Lee; Si Young Kwak

doi:10.21218/CPR.2025.13.3.148

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2D CFD Simulation Based Analysis of Wind Pressure Variations on Vertical PV Structures Considering Layout and Panel Gap under Frontal Wind 2차원 CFD 유동해석 기반 수직형 태양광 구조물의 배치간격 및 패널 틈새크기에 따른 정면풍에 대한 풍압 변화 분석

30 September 2025. pp. 148-156

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Abstract

This study employs 2D CFD simulations to analyze wind pressure characteristics on vertically arranged bifacial photovoltaic modules. The effects of panel spacing and assembly gap size on flow behavior and wind load distribution were investigated. Results show that net wind pressure decreased by 80–90% from the second row onward, regardless of spacing. When the spacing was close to the panel height (3.5 m), pressure reduction remained stable (~86%) in the second and third rows, while larger spacing (6 m) caused sequential load reduction due to wake reattachment. Horizontal gaps reduced rear negative pressure as size increased, whereas vertical gaps slightly increased it. These findings indicate that applying a uniform conservative wind load coefficient to all panels may lead to structural and economic inefficiencies.

Keywords

CFD Analysis

Wind load

Vertical PV

Agrivoltaics

Bi-facial PV module

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Information

Publisher :Korea Photovoltaic Society
Publisher(Ko) :한국태양광발전학회
Journal Title :Current Photovoltaic Research
Volume : 13
No :3
Pages :148-156
Received Date : 2025-08-25
Revised Date : 2025-09-16
Accepted Date : 2025-09-22
DOI :https://doi.org/10.21218/CPR.2025.13.3.148

Current Photovoltaic Research ISSN:2288-3274(Print) 2508-125X(Online)

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