Repositório Digital

A- A A+

Experimental study of the bistable flow in tube arrays

.

Experimental study of the bistable flow in tube arrays

Mostrar registro completo

Estatísticas

Título Experimental study of the bistable flow in tube arrays
Autor Olinto, Cláudio Rodrigues
Indrusiak, Maria Luiza Sperb
Moller, Sergio Vicosa
Abstract Flow through circular cylinder arrays are commonly found in several engineering application as offshore structures, heat exchangers, transmission lines and chimneys, therefore the understanding of the several phenomena that occur due the interaction between flowing fluid and these structures is very important. This work analyzes experimentally the presence of phenomenon called bistable or biased flow, which is able to cause alternations on the flow modes in cylinder arrays. For the experimental work, two cylinders are placed side-by-side, or forming a tube bank with in line arrangement. The first arrangement corresponds to the case where the phenomenon is easily detected, and in line tube bank, the phenomenon has been also found. The experiments were performed in a wind channel using hot wire anemometry additionally to the classical statistic and spectral tools, wavelet transforms are used. The bistable flow can be an important generator of dynamic instabilities, since it alternates the lift and drag coefficients, thus alternating the structure dynamic response.
Contido em Journal of the Brazilian Society of Mechanical Sciences and Engineering. Rio de Janeiro, RJ. Vol. 28, no. 2 (Apr./Jun. 2006), p. 233-241
Assunto Escoamento turbulento
Trocador de calor
[en] Biased flow
[en] Hot wires
[en] Tube bank
[en] Turbulent flow
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/75790
Arquivos Descrição Formato
000552746.pdf (378.9Kb) Texto completo (inglês) Adobe PDF Visualizar/abrir

Este item está licenciado na Creative Commons License

Este item aparece na(s) seguinte(s) coleção(ões)


Mostrar registro completo

Percorrer



  • O autor é titular dos direitos autorais dos documentos disponíveis neste repositório e é vedada, nos termos da lei, a comercialização de qualquer espécie sem sua autorização prévia.
    Projeto gráfico elaborado pelo Caixola - Clube de Criação Fabico/UFRGS Powered by DSpace software, Version 1.8.1.