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Second Symposium on Turbulence and Shear Flow Phenomena
June, 27-29, 2001, KTH, Stockholm, Sweden

DOI: 10.1615/TSFP2

Seawater Flow Control: Wall Normal ElectroMagnetic Actuators

pages 23-28
DOI: 10.1615/TSFP2.1670
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ABSTRACT

This work deals with ElectroMagnetic Flow Control. Basic mechanisms involved, by the use of wall normal EM actuator, for turbulence intensity and skin friction reduction or coherent structure extinction are approached.
First, EM actuator and its modes of action are described. This description included: some generality on EM actuator; the pack of equation suitable to EM control in seawater; Dimensionless parameters associated with EM control in seawater; EM actuators modes of action.
Second, some experimental investigations have been realised on: Near wall vortex around the actuator; suction zone above the actuator; wall jets around the actuator; seawater tunnel boundary layers visualisation.

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