The Effect of Additives on Fluid Friction 



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 March 1964, p. 56. 



7. Massachusetts Institute of Technology. The Effects of Fibers on Velocity 

 Distribution, Turbulence and Flow Resistance of Dilute Suspensions, by 

 J. W. Daily and G. Bugliarello. Cambridge, Mass., MIT, October 1958. 

 (Hydrodynamics Laboratory Technical Report No. 30.) 



8. Lumley, J. L., "Turbulence in Non-Newtonian Fluids," PHYSICS OF 

 FLUIDS, Vol. 7, No. 3 (March 1964). 



9. Whistler, R. L., and J. N. BeMiller, Eds., "Industrial Gums" Academic 

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10. Fabula, A. G., "The Toms Phenomenon in the Turbulent Flow of Very Dilute 

 Polymer Solutions," Fourth International Congress on Rheology, Brown 

 University, August 1963. Interscience Div., John Wiley (In press). 



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DISCUSSION 



H. Schwanecke 



Hamburg Model Basin 

 Hamburg, Germany 



At Hamburg Model Basin experiments are performed concerning the effect 

 of polymer solutions on the viscous drag of the model of a surface ship. Addi- 

 tives of several molecular weights are used. The main problem is to distribute 

 the polymer solutions all over the wetted surface as a film of sufficient concen- 

 tration. May I ask Dr. Hoyt, if he has done any experiments in that way or if he 

 knows about such experiments having been performed elsewhere? May I ask 



959 



