Negative Pressure Waves in Hydraulic Systems
Authors: Fuad H. Veliev
Negative pressure phenomenon appears in many thermodynamic, geophysical and biophysical processes in the Nature and technological systems. For more than 100 years of the laboratory researches beginning from F. M. Donny’s tests, the great values of negative pressure have been achieved. But this phenomenon has not been practically applied, being only a nice lab toy due to the special demands for the purity and homogeneity of the liquids for its appearance. The possibility of creation of direct wave of negative pressure in real heterogeneous liquid systems was confirmed experimentally under the certain kinetic and hydraulic conditions. The negative pressure can be considered as the factor of both useful and destroying energies. The new approach to generation of the negative pressure waves in impure, unclean fluids has allowed the creation of principally new energy saving technologies and installations to increase the effectiveness and efficiency of different production processes. It was proved that the negative pressure is one of the main factors causing hard troubles in some technological and natural processes. Received results emphasize the necessity to take into account the role of the negative pressure as an energy factor in evaluation of many transient thermohydrodynamic processes in the Nature and production systems.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1099126Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2431
 Hayward, A.T.J., 1971, “Negative Pressure in Liquids: Can it be Harnessed Serve Man?”, American Scientist, 59, 1971, pp.434-443.
 Couzens D.C. and Trevena D.H., “Critical Tension in a Liquid Under Dynamic Conditions”, 1969, Nature, 222, 437.
 NATO Science Series, “Liquids Under Negative Pressure”, Edited by A.R. Imre, H.J. Maris, P.R. Williams, 2001.
 Veliev F.H., “About the Negative Pressure”, Injenerno-Fizicheskiy Jurnal (Engineering Physical Journal), 1983, 44, pp.242-244
 Veliev F.H., Guliyev I.S., “About Possible Role of Negative Pressure Waves in Geophysical Processes” Applied Physics Research, 2014, vol. 6, No 5.