In the present paper, the flow structure inside a low-solidity diffuser of a transonic compressor was investigated in detail. Steady computations were carried out and compared to experimental data. The secondary flow development inside the diffuser was analyzed and the reason for the stall inception was detected. Unsteady calculations were performed for two operating points, one close to the choke and the other one close to the stall of the compressor, in order to assess the effect of the unsteadiness in the diffuser secondary flow development.
Development of Secondary Flow Field in a Low Solidity Diffuser in a Transonic Centrifugal Compressor Stage / D. Bonaiuti; A. Arnone; C. Hah; H. Hayami. - ELETTRONICO. - 5: Turbo Expo 2002, Parts A and B, Turbomachinery:(2002), pp. 445-454. (Intervento presentato al convegno ASME Turbo Expo 2002: Power for Land, Sea, and Air tenutosi a Amsterdam, The Netherlands nel 3-6 June) [10.1115/GT2002-30371].
Development of Secondary Flow Field in a Low Solidity Diffuser in a Transonic Centrifugal Compressor Stage
ARNONE, ANDREA;
2002
Abstract
In the present paper, the flow structure inside a low-solidity diffuser of a transonic compressor was investigated in detail. Steady computations were carried out and compared to experimental data. The secondary flow development inside the diffuser was analyzed and the reason for the stall inception was detected. Unsteady calculations were performed for two operating points, one close to the choke and the other one close to the stall of the compressor, in order to assess the effect of the unsteadiness in the diffuser secondary flow development.
I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
