Faculty of Mechanical Engineering, Lj. (FSLJ)
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Numerical and experimental investigation of axial fan with trailing edge self-induced blowing = Numerische und messtechnische Untersuchung eines Axialventilators mit selbstverursachtem inneren BlasenEberlinc, Matjaž ...Axial fans often showadverseflowconditions at the fan hub and at the tip of the blades. In the present paper, amodification of conventional axial fan blades with numerical and experimental ... investigation is presented. Hollow blades were manufactured from the hub to the trailing edge at the tip of the blades. They enable the formation of self-induced internal flow through internal passages. The internal flow enters the internal radial flowpassages of the hollowblades through the openings near the fan hub and exits through the trailing edge slots at the tip of the blade. The study of the influence ofinternal flow on the flow field of axial fan and the modifications of aerodynamic characteristics of the axial fan have been made. The numerical andexperimental results show a comparison of integral and local characteristics of the axial fan with the internal flow, compared to characteristics of a geometrically equivalent fan without internal flow. The experimental results of local characteristics were performed with a five-hole probe and computer-aided visualization.Areduction of adverse flowconditions near the trailing edge at the tip of the blade was achieved, as well as boundary layer reduction on the blade suction side and the reduction of flow separation. The introduction of self-induced blowing led to the preservation of the direction of external flow, defined by blade geometry, and enabledmaximal local energy conversion. The integral characteristic reached higher degree of efficiency.Source: Forschung im Ingenieurwesen. - ISSN 0015-7899 (Vol. 73, iss. 3, 2009, str. 129-138)Type of material - article, component partPublish date - 2009Language - englishCOBISS.SI-ID - 10912539
Author
Eberlinc, Matjaž |
Širok, Brane |
Hočevar, Marko, 1972- |
Dular, Matevž
Topics
axial fan |
hollow blade |
self-induced blowing |
numerical simulation |
five-hole probe |
computer-aided visualization |
aksialni ventilatorji |
votle lopatice |
numerična simulacija |
računalnisko podprta vizualizacija
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Eberlinc, Matjaž | 27661 |
Širok, Brane | 09286 |
Hočevar, Marko, 1972- | 18836 |
Dular, Matevž | 23471 |
Source: Personal bibliographies
and: SICRIS
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