Surge Prediction in a Single Sequential Turbocharger (SST) Compressor Using Computational Fluid Dynamics

Karim, Ahsanul; Wade, Robert; Morelli, Anthony; Miazgowicz, Keith; Lizotte, Brian

doi:10.4271/2019-01-1490

Cited by 1 publication

(1 citation statement)

References 14 publications

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“…Additionally, these kinds of simulations are very computationally expensive and, thus, are not options in an industrial environment. A second category of approaches uses steady-state simulation data and tries to link a physical parameter to the existence of surge, indicated by experiments which have also been conducted [15,16]. Some examples are the temperature at the leading edge (indicator for recirculation flow), the entropy production in the compressor wheel tip region (indicator for the tip gap vortex) or the velocity (indicator for flow reversal), which have been selected as physical parameters for surge detection.…”

Section: Numerical Modeling and The Challenge With The Surge Limitmentioning

confidence: 99%

Determination of a Numerical Surge Limit by Means of an Enhanced Greitzer Compressor Model

Haeckel,

Paul,

Leichtfuß

et al. 2023

IJTPP

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The surge limit of centrifugal compressors is a key parameter in the design process of modern turbochargers. Numerical methods like steady-state simulations are state-of-the-art methods for predicting the performance of the centrifugal compressor. In contrast to that, the determination of the surge limit with any numerical method is still an unsolved challenge. Since the extensive work of Greitzer and many other researchers in this field, it is well-known that surge is a system-dependent phenomenon. In the case of steady-state simulations, the simulation domain is chosen to be as small as possible due to the numerical cost. This simply implies that there is no system information included in the numerical model. Therefore, it is not possible to determine any system-dependent surge limit with today’s applied numerical methods. To overcome this issue, an enhanced Greitzer surge model, which has been developed at Tu Darmstadt, should act as a link between the simulation and the system in which the compressor will be operated. The focus of this paper will rather be on the methodology of determining the surge limit by means of numerical data than on the surge model itself. The methodology will be validated by experimental data of different systems.

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Section: Numerical Modeling and The Challenge With The Surge Limitmentioning

confidence: 99%

Determination of a Numerical Surge Limit by Means of an Enhanced Greitzer Compressor Model

Haeckel,

Paul,

Leichtfuß

et al. 2023

IJTPP

View full text Add to dashboard Cite

show abstract

Surge Prediction in a Single Sequential Turbocharger (SST) Compressor Using Computational Fluid Dynamics

Cited by 1 publication

References 14 publications

Determination of a Numerical Surge Limit by Means of an Enhanced Greitzer Compressor Model

Determination of a Numerical Surge Limit by Means of an Enhanced Greitzer Compressor Model

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