Experimental investigation of flow stability in disk hydraulic machines of space power unit

1Misyura, VL, 1Prisniakov, VF
1Oles Honchar National University of Dnipropetrovsk
Kosm. nauka tehnol. 1998, 4 ;(5):110–115
Section: Space Energy, Power and Propulsion
Publication Language: Ukrainian
Laminar-turbulent transition regime in a slot between flat disks rotating around the axis at the same velocity is investigated. The slot is a working element of disk pumps, compressors, turbines, and fans recommended for space power units. Instabilities of varions types which appear in the flow as well as the velocity distribution in the slot were determined by optical methods. Experimental relations lips hips which define the beginning of laminar-turbulent transition and its end were obtained.
Keywords: disk hydraulic machines, space power unit
1. Greenspan H. P. The Theory of Rotating Fluids, 304 p. (Gidrometeoizdat, Leningrad, 1975) [in Russian].
2. Luneva N. V. The influence of rotation on turbulence damping. Nonlinear problems of the theory of stability: Materialy 7-j shk. seminara, In-t mehaniki, 38 p. (Moscow, 1992) [in Russian].
3. Misyura V. I. On the application of hydraulic friction disc in the national economy. Mathematical modeling in engineering analysis of complex systems: Sb. nauch. tr., 208—215 (DGU, Dnepropetrovsk, 1997) [in Russian].
4. Misyura V. I. Experimental study of the  flow of an incompressible fluid between two rotating disks. Izvestiya Vysshikh Uchebnykh Zavedenii, Energetika, No. 5,  103— 107 (1977) [in Russian].
5. Misyura V. I., Ovsyannikov B. V., Prisnyakov V. F. Disk Pumps, 112 p. (Mashinostroenie, Moscow, 1986) [in Russian].
6. Rais V. Theoretical and experimental study of multi-drive pumps and compressors. Energetika, No. 3,  35—46 (1963) [in Russian].
7. San'kov P. I., Smirnov E. M. Effect of radial flow rate on the transition to a turbulent flow regime in the gap between a rotating and a stationary disk. Izv. AN SSSR. Mehanika   zhidkosti i gaza, No. 5, 175—179 (1986) [in Russian].
8. Shenberg S. P. Fluid viscous fluid friction and hydraulic machines, 170 p. (Kiev, 1915) [in Russian].
9. Shlikhting G. The theory of the boundary layer, 712 p. (Nauka, Moscow, 1974) [in Russian].
10. Bojd K. E., Rice W. Laminar inward flow of an incompressible fluid between rotating disks with full peripheral admission. Trans. ASME, 90, 229—237 (1968).
11. Gaede W. Die aussere Rebreng der Gaese und liniens Prinzip fur Luftpumpen. Die Molekularluftpumpe. Physikalische Zeit-schrift, No. 18 (380), 41—49 (1912).
12. Kohler M. Die Stromung durch das Spaltelement einer Rei-bungspumpe. Stromungmech. und Stromungmasch., No. 9, 24—45 (1971).
13. Pater L. L., Growther E., Rice W. Flow regime definition for flow between co-rotating disks. ASME Pap., N 1, WA/FE-9, P. 29—34 (1973).

14. Tesla N. Turbine: Pat. 1061206 USA. (Publ. 1913).