Effect of innovative circular shroud fences on a centrifugal fan for augmented performance - A numerical analysis

Madhwesh, N; Karanth, K. Vasudeva; Sharma, Neha

doi:10.1007/s12206-017-1220-z

Cited by 11 publications

(2 citation statements)

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“…The turbulence model used is K-epsilon model with standard wall treatment which is a widely accepted and computationally reliable model used in CFD analysis for turbomachinery applications. [6,14] An outflow boundary condition is set assuming that the flow is fully developed at the exit of the blower. The no-slip boundary is specified for blades and walls of the volute as a prescribed boundary condition.…”

Section: Boundary Conditions and Unsteady Analysismentioning

confidence: 99%

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Effects of Innovative Suction Slots on the Performance of a Radial Bladed Impeller of a Centrifugal Blower - A Numerical Transient Analysis

Madhwesh¹,

Karanth²

2021

Eng. Sci.

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The recirculation zones present in between the blade passages give rise to some losses in centrifugal blowers. The main objective of this study is to realign the flow at the suction side of the impeller by weakening the recirculation zones. This can be achieved by providing slots on the impeller blade geometry, which will efflux the flow from the pressure side of the impeller towards its suction side. Effects of single and multiple slots were analysed numerically for possible pressure recovery. The comparison of performance among various slot configurations is represented in terms of non-dimensional parameters. It is found from numerical study that a single slot provided at a radial distance of 75% from blade root and twin slots located at 50 % and 75% from the leading edge of the impeller vane significantly contribute to the static pressure recovery across the fan. Hence, it is beneficial to use multiple suction slots for better performance augmentation.

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Section: Boundary Conditions and Unsteady Analysismentioning

confidence: 99%

“…The governing conservative differential equations for continuity, momentum and scalar transport in the reference frame of the moving mesh may be written in Cartesian tensorial form and are given in equations ( 1), ( 2), ( 3) and ( 4) respectively. [14] Continuity equation:…”

Section: Governing Equationsmentioning

confidence: 99%