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Numerical and experimental investigations of the flow in the radial fan

Fortuna S., Sobczak K.

Mechanics / AGH University of Science and Technology

2008

Vol. 27, no. 4

138-143

The radial fan under investigation transfers energy in the form of mechanical work to the air. A three-dimensional flow structure in the rotor was determined on the basis of the computational and experimental data. A comparison of the numerical simulations by means of ANSYS CFX and thermoanemometer measurements of velocity as well as its components was presented. The results of numerical investigations, measurements and balance method were compared in order to determine the compressor performance characteristics.

Wentylator przekazuje do czynnika energię w postaci pracy mechanicznej. Dla realnego wentylatora promieniowego wykonano numeryczną symulację przepływu za pomocą programu ANSYS, pomiary termoanemometryczne prędkości bezwzględnych i składowych za wirnikiem oraz pomiary bilansowe. Na podstawie uśrednionych profili odpowiednich prędkości wyznaczonych numerycznie i termoanemometrycznie wyznaczono parametry przepływowe wentylatora i porównano z eksperymentalną charakterystyką pracy wentylatora.

Mechanics and analysis of fabric composites and structures

Morozov E. V.

Autex Research Journal

2004

Vol. 4, no. 2

60--71

This paper is devoted to the mechanics, modelling and analysis of fabric-reinforced composites and structural components. A theoretical and experimental characterisation of elastic properties of the textile composites is considered. Typical stress-strain diagrams for fibreglass fabric composites and composites reinforced with knitted fabrics loaded in tension at different angles are presented. The special case of the three-dimensional reinforcement structure of composite material, composed of spatially-oriented fabric layers is discussed and corresponding models considered. Manufacturing technology for such structures includes a three-dimensional lay-up process in which the specially designed fabric patterns are placed onto the mould or mandrel. The implementation of the material model is illustrated with results of the stress-strain analysis of thin-walled spatially reinforced structural components.