Resumo

IMBERT-GONZALEZ, Josué; GARCIA-VALLADARES, Octavio  e  GUILLEN-GORDIN, Reinaldo. The pressure drop of turbulent flow inan annular space with wire coil inserts. Ingeniería Mecánica [online]. 2015, vol.18, n.2, pp. 93-99. ISSN 1815-5944.

The work presented evaluates the experimental behavior of the pressure drop in an annular space with coiled wires inserted for Reynolds numbers between 1500 and 5000. The test zone was selected away from the influence of entrance effects. Previously flow visualization tests were performed to verify the presence of a turbulent flow in this range of Reynolds number. From the experimental data were obtained correlation equations of the friction factor for turbulent flow. The equations obtained were compared with experimental data. The results indicate to what extent the helices induce the occurrence of turbulence in an annular space.

Palavras-chave : drop pressure; annular flow; hydrodynamic analysis; visualization flow; wire coilinserts.

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