Aerodynamic external pressure loads on a semi-circular bluff body under wind gusts

Chevula, Sreenadh and Sanz Andres, Angel Pedro and Franchini, Sebastian Nicolas (2015). Aerodynamic external pressure loads on a semi-circular bluff body under wind gusts. "Journal of Fluids and Structures", v. 54 ; pp. 947-957. ISSN 0889-9746. https://doi.org/10.1016/j.jfluidstructs.2015.02.004.

Description

Title: Aerodynamic external pressure loads on a semi-circular bluff body under wind gusts
Author/s:
  • Chevula, Sreenadh
  • Sanz Andres, Angel Pedro
  • Franchini, Sebastian Nicolas
Item Type: Article
Título de Revista/Publicación: Journal of Fluids and Structures
Date: April 2015
ISSN: 0889-9746
Volume: 54
Subjects:
Faculty: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Department: Aeronaves y Vehículos Espaciales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This brief communication concerns the unsteady aerodynamic external pressure loads acting on a semi-circular bluff body lying on a floor under wind gusts and describes the theoretical model, experimental setup, and experimental results obtained. The experimental setup is based on an open circuit, closed test section, low speed wind tunnel, which includes a sinusoidal gust generating mechanism, designed and built at the Instituto de Microgravedad “Ignacio Da Riva” of the Universidad Politécnica de Madrid (IDR/UPM). Based on the potential flow theory, a theoretical model has been proposed to analyse the problem, and experimental tests have been performed to study the unsteady aerodynamic loads on a semi-circular bluff body. By fitting the theoretical model predictions with the experimental results, influencing parameters of the unsteady aerodynamic loads are ascertained. The values of these parameters can help in clarifying the phenomenon of the external pressure loads on semi-circular bluff body under various gust frequencies. The theoretical model proposed allows the pressure variation to be split into two contributions, a quasi-steady term and an unsteady term with a simple physical meaning

More information

Item ID: 39442
DC Identifier: http://oa.upm.es/39442/
OAI Identifier: oai:oa.upm.es:39442
DOI: 10.1016/j.jfluidstructs.2015.02.004
Official URL: http://www.sciencedirect.com/science/article/pii/S0889974615000456
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 25 Feb 2016 08:32
Last Modified: 01 May 2016 22:56
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