Hostname: page-component-7f64f4797f-42qgm Total loading time: 0 Render date: 2025-11-04T07:39:36.562Z Has data issue: false hasContentIssue false
  • English
  • Français

Semi-preserving development of a slightly heated free swirling jet

Published online by Cambridge University Press:  26 April 2006

J. W. Elsner  and
L. Kurzak
J. W. Elsner
Affiliation:
Thermal Machinery Institute, Technical University of Częstochowa, Deglera 35, 42-200 Częstochowa, Poland
L. Kurzak
Affiliation:
Thermal Machinery Institute, Technical University of Częstochowa, Deglera 35, 42-200 Częstochowa, Poland
Get access Rights & Permissions [Opens in a new window]

Abstract

The paper formulates the concept of a semi-preserving developing of a free nonisothermal swirling jet. On the basis of experimental data it may be estimated that the semi-preserving conditions are established at the distance x − x0 ≈ (15−20) D. Also, it has been pointed out that self-preservation, which requires the turbulence structure to be similar during decay, may be considered as an asymptotic state of the semi-preserving development achieved in practice at a distance where $\overline{u_r u_{\phi}/ \overline(u_x u_r) \ll 1\cdot 0$.

Information

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 199 , February 1989 , pp. 237 - 255
Copyright
© 1989 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

Chigier, N. A. & Chervinsky, A., 1967 Experimental investigation of swirling vortex motion in jets. Trans. ASME E: J. Appl. Mech. 34, 443.Google Scholar
Curtet, R. M. & Darigol, M., 1978 Aerothermique d'un Jet Libre Tournant Turbulent. Preprint, Institute de Mecanique, Grenoble.
Elsner, J. W. & Drobniak, S., 1979 Semi-preserving region in coaxial swirling jets. In Transportprozesses in turbulenten Strömungen, Heft I, p. 55. Berlin: Akademie der Wissenschaften der DDR.
Elsner, J. W. & Drobniak, S., 1983 Turbulence structure in swirling jets. In Structure of Complex Turbulent Shear Flow (ed. R. Dumas & L. Fulachier), p. 219. Springer.
Elsner, J. W. & Kurzak, L., 1987 Characteristics of turbulent flow in slightly heated free swirling jets. J. Fluid. Mech. 180, 147.Google Scholar
Grandmaison, E. W. & Becker, H. A., 1982 Turbulent mixing in free swirling jets. Can. J. Chem. Engng 60, 76.Google Scholar
Komori, S. & Ueda, H., 1984 Turbulent effects on the chemical reaction for a jet in a nonturbulent stream and for a plume in a grid-generated turbulence. Phys. Fluids. 27, 77.Google Scholar
Komori, S. & Ueda, H., 1985 Turblent flow structure in the near field of a swirling round free jet. Phys. Fluids 28, 2075.Google Scholar
Ogawa, A., Hatakeyama, H. & Fujita, H., 1979 Fluiddynamical characteristics of the turbulent straight and rotational jets (1st report). J. College Engng Nihon Univ. A 20, 133.Google Scholar
Ogawa, A., Hatakeyama, H. & Fujita, Y., 1981 Fluiddynamical characteristics of the turbulent straight and rotational jets (2nd report). J. College Engng Nihon Univ. A 22, 157.Google Scholar
Ogawa, A., Hatakeyama, H. & Fujita, Y., 1982 Fluiddynamical characteristics of the turbulent straight and rotational jets (3rd report). J. College Engng Nihon Univ. A 23, 89.Google Scholar
Pratte, B. D. & Keffer, J. F., 1972 The swirling turbulent jet. Trans. ASME D: J. Basic Engng 94, 739.Google Scholar
Rodi, W. A.: 1975 A review of experimental data of uniform density free turbulent boundary layers. In Studies of Convection Theory Measurements and Application (ed. B. E. Launder), vol. 1, p. 79. Academic.
Rose, W. R.: 1962 A swirling round turbulent jet. 1 Mean-flow measurements. Trans. ASME E: J. Appl. Mech. 29, 615.Google Scholar
Stewart, R. W. & Townsend, A. A., 1951 Similarity and self-preservation in isotropic turbulence. Phil. Trans. R. Soc. Lond. A A243, 359.Google Scholar
Wygnanski, I. J. & Fiedler, H. F., 1969 Some measurements in the self-preserving jet. J. Fluid. Mech. 38, 577.Google Scholar