Effect of Casing Wall Divergence Angle on the Performance of Unequal Angle Annular Diffuser

Sangam  Sinha; B.B. Arora

doi:10.5750/ijme.v168iA4(S).1888

Published: Oct 10, 2026

DOI: https://doi.org/10.5750/ijme.v168iA4(S).1888

Keywords:

Hydrodynamic coefficients Extended kalman filter Sliding mode observer Sliding mode control (Preferably some four key words/very short phrases)

Sangam Sinha

Department of Mechanical Engineering, Delhi Technological University, Delhi, India

B.B. Arora

Department of Mechanical Engineering, Delhi Technological University, Delhi, India

Abstract

The Present work pertains to CFD investigations, which were conducted to determine the effect of casing wall divergence on the unequal angle annular diffuser with area ratio 3. The diffuser in the present study has been taken as unequal angle annular diffuser with fixed 5° angle for hub wall and casing angle was varied between 15° to 25°. Analysis was carried out with swirling flow having inlet swirl angle ranging between 0° to 25° in order to determine the performance as well as flow profile inside an annular diffuser. All the diffusers had same equivalent cone angle configurations of 10°.

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Vol. 168 No. A4(S) (2026): Special Issue: International Conference of Advance Research and Innovation

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