yes, the patenters know how it works :-)

Drag reduction method for gas pipelines – US Patent 5020561 Description

These types of viscoelastic fluids can reduce eddy currents in the liquid stream. This lowering of the friction or drag is generally interpreted to result from a suppression of the turbulent fluctuations by the dissolved polymer molecules of the drag reducer. Consequently, more energy will be conserved in moving the liquid through the pipeline due to the reduction in production rate of turbulent energy.

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