Simulation of the heat exchange between the supersonic flow and the stationary body in a gas centrifuge / Zvonarev K.V., Seleznev V.D., Tokmantsev V.I., Abramov Y.V. // Journal of Engineering Physics and Thermophysics. - 2012. - V. 85, l. 6. - P. 1382-1389.

ISSN:

10620125

Type:

Article

Abstract:

We have made comparative calculations of the heat exchange in the subpersonic flow of gaseous UF6 around the stationary cylindrical body inside the rotating rotor of the gas centrifuge. It has been revealed that the integral heat flux from the gas to the body calculated with the use of the ANSYS-CFX program complex from the viewpoint of the continuum model is much smaller than the heat flow calculated by the Monte Carlo method of direct statistical simulation. Estimates show that under the conditions being considered the boundary layer on the surface of the body has no time to be formed and has a thickness of the order of the mean free path of the gas molecules and, therefore, the use of the methods of continuum mechanics in this region is incorrect. On the contrary, the method of direct statistical simulation permits taking into account the interaction of gas molecules directly with the surface of the streamline body and obtaining more correct results. © 2012 Springer Science+Business Media New York.

Author keywords:

ANSYS-CFX; gas centrifuge; heat exchange; Monte Carlo method; supersonic flow

Index keywords:

ANSYS-CFX; Continuum Modeling; Cylindrical bodies; Gas centrifuges; Gas molecules; Heat exchange; Mean free path; Statistical simulation; Centrifuges; Continuum mechanics; Heat exchangers; Heat flux;

DOI:

10.1007/s10891-012-0786-7

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84882833622&doi=10.1007%2fs10891-012-0786-7&partnerID=40&md5=8d2207de838f33091f4dc40b0ac6eec8

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Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84882833622&doi=10.1007%2fs10891-012-0786-7&partnerID=40&md5=8d2207de838f33091f4dc40b0ac6eec8
Affiliations	Federal State Autonomous Educational Institution of Professional Higher Education, Ural Federal University Named after the First President of Russia B. N. el'Tsin, 19 Mir Str., Ekaterinburg 620002, Russian Federation
Author Keywords	ANSYS-CFX; gas centrifuge; heat exchange; Monte Carlo method; supersonic flow
References	Boyd, I.D., Predicting breakdown of the continuum equations under rarefied flow conditions (2003) Proc. 23rd Int. Symp. on Rarefied Gas Dynamics, pp. 899-906. , American Institute of Physics; Landau, L.D., Lifshits, E.M., (2001) Theoretical Physics, Vol. VII. Hydrodynamics, , [in Russian], Fizmatlit, Moscow; Bird, G.A., (1976) Molecular Gas Dynamics, , Clarendon Oxford; Bird, G.A., (1994) Molecular Gas Dynamics and the Direct Simulation of Gas Flows, , Claredon Oxford; Eymard, R., Gallouet, T., Herbin, R., (2000) Finite Volume Methods. Techniques of Scientific Computing: Hadbook of Numerical Analysis, , North-Holland, Amsterdam; Villani, S., Becker, E.W., (1979) Uranium Enrichment, , (eds) et al. Springer-Verlag New York; Borgnakke, C., Larsen, P.S., Statistical collision model for Monte-Carlo simulation of polyatomic gas mixture (1975) J. Comp. Phys., 18, pp. 405-420. , 10.1016/0021-9991(75)90094-7; Wood, H.G., Sanders, G., Rotating compressible flows with internal sources and sinks (1983) J. Fluid Mech., 127, pp. 299-313. , 0519.76110 10.1017/S0022112083002736; Sharipov, F., Hypersonic flow of rarefied gas near the brazilian satellite during its reentry into atmosphere (2003) Brazilian J. Physics, 33 (2), pp. 398-405. , 10.1590/S0103-97332003000200044
Correspondence Address	Federal State Autonomous Educational Institution of Professional Higher Education, Ural Federal University Named after the First President of Russia B. N. el'Tsin, 19 Mir Str., Ekaterinburg 620002, Russian Federation
Language of Original Document	English
Abbreviated Source Title	J. Eng. Phys. Thermophys.
Source	Scopus