What question did this study set out to answer?

This research aims to explore how fire influences the progressive collapse of eccentrically braced steel structures.

May 10, 2026Open Access

The Role of Fire in Triggering Progressive Collapse of Eccentrically Braced Steel Structures

AAAisha Funmilayo AdebanjoUniversity of Lagos

Key Points

This research aims to explore how fire influences the progressive collapse of eccentrically braced steel structures.
Simulated aerodynamics of 5 horizontal-axis wind turbine blades using software (Fluent & Q-Blade)
Evaluated flow structures and aerodynamic characteristics under specified design conditions (rated wind speed, tip speed ratio, angle of attack)
Compared simulation results with improved blade element momentum (BEM) theory at various wind speeds (10-30 m/s)
Simulation outcomes show good agreement with BEM theory indicating accurate aerodynamic modeling
NACA 4412 airfoil exhibited the best performance among the selected designs
CFD was validated as an effective method for aerodynamic investigations of HAWT blades

Abstract

In this study, we choose 5 horizontal-axis wind turbine (HAWT) blade output has been designed by the blade, and the blade aerodynamics are also simulated to investigate flow structures and aerodynamic characteristics. The design conditions of the turbine blade in order to display the rated wind speed, design tip speed ratio and design angle of attack that have been set to 10-30 m/s, 0,5 and 10°, respectively turbine blade. The last selection is NACA 4412 that has the best performance between 5 selected airfoil. The simulation results are compared with the improved BEM theory at rated wind speed of 10-30 m/s and show that the CFD is a good method on aerodynamic investigation of a HAWT blade.in this study we use two soft wares(fluent &Q-Blade) for our computations.

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