Experimental and computational analysis of the flow passing through each branch of a twin-entry turbine

Galindo, José; Serrano, Juan José; García-Cuevas, Luis Miguel; Medina, Nicolás

doi:10.1201/9781003132172-20

Cited by 6 publications

(4 citation statements)

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“…The rotor outlet discharge coefficient is nearly constant with the MFR, but the rotor inlet discharge coefficient depends on the MFR. However, the effect of the rotor inlet angle can be separated from the rotor inlet discharge coefficient and it depends directly on the MFR, as explained in [54]. If this effect is separated, the rotor inlet discharge coefficient has nearly constant trends against the MFR, but the direct dependence of the rotor inlet angle has to be included in the effective area equation dividing by the cosine of the rotor inlet angle, as shown in Eq 3.…”

Section: Rotor Inlet and Outlet Areas Effect On The Flow Capacity Mapmentioning

confidence: 99%

Using a CFD analysis of the flow capacity in a twin-entry turbine to develop a simplified physics-based model

Galindo

Serrano

Medina

2021

Aerospace Science and Technology

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Section: Rotor Inlet and Outlet Areas Effect On The Flow Capacity Mapmentioning

confidence: 99%

Using a CFD analysis of the flow capacity in a twin-entry turbine to develop a simplified physics-based model

Galindo

Serrano

Medina

2021

Aerospace Science and Technology

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“…In this paper, the hypotheses used for developing the one-dimensional twin-entry turbine model are corroborated with LDA measurements. Moreover, the CFD simulations used in previous works 19,29 are locally validated in the outlet section with these experimental results. The hypotheses to validate are presented in section Hypotheses to Validate.…”

Section: Introductionmentioning

confidence: 99%

Experimental assessment of the rotor outlet flow in a twin-entry radial turbine by means of Laser Doppler Anemometry

Galindo

Tiseira

García-Cuevas

et al. 2021

International Journal of Engine Research

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The current paper presents the validation of some hypotheses used for developing a one-dimensional twin-entry turbine model with experimental measurements. A Laser Doppler Anemometry (LDA) technique has been used for measuring the axial Mach number and for counting the number of particles downstream of the rotor outlet. These measurements have been done for different mass flow ratio (MFR) and reduced turbocharger speed conditions. The flow coming from each turbine entry does not fully mix with the other within the rotor since, downstream of the rotor, they can still be differentiated. Thus, the hypothesis of studying twin-entry turbines as two separated single-entry turbines in one-dimensional models is corroborated. Moreover, the rotor outlet area corresponding to each flow branch has linear trends with the MFR value. Therefore, the rotor outlet effective area used for one-dimensional models should vary linearly with the MFR value.

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“…• "Experimental and computational analysis of the flow passing through each branch of a twin-entry turbine", in 14th International Conference on Turbochargers and Turbocharging (2020) by Galindo, Serrano, García-Cuevas and Medina [1].…”

Section: List Of Publicationsmentioning

confidence: 99%

“…6. 1. m ̇turb is the mass flow rate of the turbine, A the area, ρ the density and v and w the absolute and the relative velocity respectively.…”

Section: Effective Area Modelmentioning

confidence: 99%

Flow Capacity and Efficiency Modelling of Twin-Entry Radial Turbines under Unequal Admission Conditions through CFD Analysis and Experiments

Tomás¹

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The current work focuses on the flow capacity and efficiency analysis and modelling of twin-entry radial turbines under unequal admission conditions. These conditions are the most common in real operation, so they must be properly assessed. A thorough analysis of the flow patterns I would like to thank Antonio Gil and Pau Raga for their assistance in the CFD meshing. Also, Rafael Carrascosa, Ali Abbad, Adolfo Guzmán "Fito", Valentín Ucedo and Miguel Ángel Ortiz for helping me to perform reliable experimental measurements and Amparo Cutillas for her never-ending assistance with all the paperwork. I would also acknowledge Andrés Tiseira and José Ramón Serrano for their advice during these years. Specially, I would like to thank my fellow PhD students Pau, Alberto, Lucas, Fabio, Juancho, Miguel Ángel, Guille and Miguel for making my daily work more enjoyable and support me in the best and worst moments.I would like to acknowledge Gianluca Montenegro and all the staff at the Dipartimento di Energia for receiving me and make me feel like I was in home during my doctoral stay at Politecnico di Milano.Finally, the people that more deserve my gratitude are my parents, my brother, my grandmothers and all my family. They have always supported me in all decisions I've made and this PhD thesis could not be concluded without them. Also, I wish to thank all my friends, specially Sergio, Inés and Paula, for giving me the energy I needed to finish this work. ix

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Experimental and computational analysis of the flow passing through each branch of a twin-entry turbine

Cited by 6 publications

References 0 publications

Using a CFD analysis of the flow capacity in a twin-entry turbine to develop a simplified physics-based model

Using a CFD analysis of the flow capacity in a twin-entry turbine to develop a simplified physics-based model

Experimental assessment of the rotor outlet flow in a twin-entry radial turbine by means of Laser Doppler Anemometry

Flow Capacity and Efficiency Modelling of Twin-Entry Radial Turbines under Unequal Admission Conditions through CFD Analysis and Experiments

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