Description

philosophical and practical discussion regarding the intersection between phenomenology and methods grounded in post-positivism within a single study and provide two illustrative examples of mixed methods research that have incorporated phenomenology in a philosophically sensitive manner. In doing so, we present an overview of the ongoing conceptualization of Mixed Methods Phenomenological Research (MMPR) and a framework for the use of phenomenology as a component within Mixed Methods Research (MMR), exploring how MMPR expands current methodological practice and contributes to the advancement of MMR. This work conducted wind tunnel experiments and high-fidelity numerical simulations to study the flow phenomenology around and aerodynamic characteristics of a transversely inclined cantilever prism a highly probable but unattended configuration when inclined civil structures are subjected to changing angle of attack.

The velocity field, stream and spanwise vorticity, Q-criterion vortex structures, aerodynamic force and spectra, surface pressures, and shear layer morphology have been comprehensively analyzed. Results showed significant deviations from the vertical prism, deeming many classical observations on the prism wake untransferable to the inclined cases. The underlying flow phenomenology was subsequently clarified. Transverse inclination induces fundamentally different, asymmetric wake morphology, especially near the fix- and free-end, suppressing the horseshoe vortices and intensifying near-wake turbulence. The prism base also experiences a remarkable intensification of wind load and vortical dynamics. The suppression of vortical activities on the near-wind side of the fix-end also gives rise to a new wake morphology – the tripole mode – unique to transverse inclination. Moreover, transversely inclined prisms experience different crosswind loads when angle of attack reverse in sign, which is attributed to changes in shear layer curvature. This work’s conclusions partially fill the gap in the fluid mechanics of inclined prisms and, more importantly, highlight the extra cautions needed for engineering applications involving inclined structures.

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Leesa
Journal Coordinator
Journal of Annals of Behavioural Science