Abstract
INVESTIGATIONS were carried out between March and September 1969 to determine the drag reduction effects produced by certain species of algae in No. 3 towing tank at the Ship Division of the National Physical Laboratory. The tank is 48 feet wide, 25 feet deep and 1,300 feet long and contains the water added in August-September 1957. Small additions are regularly made to compensate for evaporation losses. The tank is constantly used for hydrodynamical experiments and is daily skimmed by towing a plastic tube along the tank to remove surface scum. The tube extends across the width of the tank and below it is suspended a muslin curtain. Samples from this scum were studied and species were tested, for drag reduction effects.
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References
Pringsheim, E. G., Pure Cultures of the Algae (Cambridge University Press, 1946).
Chu, S. P., Growth of Planktonic Algae.
Hoyt, J. W., and Silo, G., Science, 149, 1509 (1965).
Hoyt, J. W., Proc. Eleventh Intern. Towing Tank Conf., 88 (1966).
Kenis, P. R., Nature, 217, 940 (1968).
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HAWKRIDGE, H., GADD, G. Investigation of Drag Reduction by Certain Algae. Nature 230, 253–255 (1971). https://doi.org/10.1038/230253a0
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DOI: https://doi.org/10.1038/230253a0
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