Static pressure and wall shear stress distributions in air flow in a seven wire-wrapped rod bundle

AUTOR(ES)

Fernandez y Fernandez, Elói, Carajilescov, Pedro

FONTE

Journal of the Brazilian Society of Mechanical Sciences

DATA DE PUBLICAÇÃO

2000

RESUMO

An experimental investigation is performed in a turbulent flow in a seven wire-wrapped rod bundle, mounted in an open air facility. Static pressure distributions are measured on central and peripheral rods. By using a Preston tube, the wall shear stress profiles are experimentally obtained along the perimeter of the rods. The geometric parameters of the test section are P/D=1.20 and H/D=15. The measuring section is located at L/D=40 from the air inlet. It is observed that the dimensionless static pressure and wall shear stress profiles are nearly independent of the Reynolds number and strongly dependent of the wire-spacer position, with abrupt variations of the parameters in the neighborhood of the wires.

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