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An experimental investigation of turbulent axisymmetric wakes including the zero-momentum case was carried out. Mean and fluctuation velocity profiles were measured and self-similar profiles were observed that decayed very rapidly when the momentum was adjusted to be zero. The wake behavior was found to be sensitive to any small mismatch of momentum and the relaxation zone strongly depended on the intensity and scale of the turbulence in the initial wake.
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Higuchi et al. (1990) studied this question.
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