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Keywords: aerodynamics
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. November 2024, 146(11): 111001.
Paper No: TURBO-23-1125
Published Online: May 23, 2024
... pressure rise and streamlines at mid-span for Case B at NS1 and NS2 As the mainstream flow became more tangential at inlet for NS2, it appeared to suppress the aerodynamic blockage from the corner separation across the entire span, which can be seen in the mid-span streamlines in Fig. 20...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2024, 146(10): 101007.
Paper No: TURBO-23-1254
Published Online: May 8, 2024
... leakage is observed. These findings provide insight into the stator hub leakage-related penalties on the compressor aerodynamics efficiency. 1 Corresponding author. Email: klausmann@glr.tu-darmstadt.de Email: kilian@glr.tu-darmstadt.de Email: xiao.he2014@imperial.ac.uk Email...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2024, 146(8): 081001.
Paper No: TURBO-23-1216
Published Online: March 11, 2024
... design speed. The reference configuration has been investigated experimentally on a novel test facility with multiphysical instrumentation. In this publication, the results of the first experimental campaign are presented with a detailed analysis of the aerodynamic performance and system symmetry...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2024, 146(3): 031005.
Paper No: TURBO-23-1235
Published Online: November 16, 2023
... of a multistage axial turbo-reactor with various vaneless space lengths are conducted. This work conclusively demonstrates the robustness and flexibility of the aerodynamic design despite employing a uniform blade design. It is emphasized that the concept is tolerant to unsteady interstage turbulent disturbances...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2023, 145(8): 081012.
Paper No: TURBO-22-1141
Published Online: May 22, 2023
... industry. Therefore, the design of high-performance heavy-duty industrial fans requires robust yet efficient solutions. The previous work indicates a high aerodynamic and aeroacoustic sensitivity concerning the specific position of the volute cutoff (tongue). This effect will be further investigated...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. November 2022, 144(11): 111012.
Paper No: TURBO-21-1031
Published Online: September 13, 2022
... , Paper No. AIAA 2012-3993. [5] Florea , R. V. , Voytovych , D. , Tillman , G. , Stucky , M. , Shabbir , A. , Sharma , O. , and Arend , D. J. , 2013 , “ Aerodynamic Analysis of a Boundary-Layer-Ingesting Distortion-Tolerant Fan ,” Proceedings of ASME Turbo Expo 2013...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. December 2021, 143(12): 121009.
Paper No: TURBO-20-1347
Published Online: July 14, 2021
... flows upstream of the passage is expected to interact and change passage aerodynamics and, subsequently, mixing and transport of coolants. This study describes, experimentally, the aero-thermal interaction of cooling flows near the endwall of a first-stage nozzle guide vane passage. The test section...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. November 2021, 143(11): 111010.
Paper No: TURBO-21-1037
Published Online: June 21, 2021
...C. De Maesschalck; V. Andreoli; G. Paniagua; T. Gillen; B. Barker The optimization of the turbine rotor tip geometry remains a vital opportunity to create more efficient and durable engines. Balancing the aerodynamic and thermal aspects, while maintaining the mechanical integrity, is key to reshape...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2021, 143(10): 101011.
Paper No: TURBO-20-1415
Published Online: May 19, 2021
... Roughness Impact on Secondary Flow and Losses in a Turbine Exhaust Casing ,” Proceedings of ASME Turbo Expo 2018 . ASME Paper No. GT2018-75541. [7] Deshpande , S. , Jonsson , I. , and Chernoray , V. , 2019 , “ Effect of Surface Roughness on Aerodynamic Performance of Turbine Rear...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2021, 143(4): 041007.
Paper No: TURBO-20-1082
Published Online: March 22, 2021
..., the distortion at the fan face during cruise is close to radial. This article aims to devise and test a fan design philosophy that is tuned to this inflow distortion. Initially, a free-vortex fan design matched to clean inflow is presented. The effects of BLI on the aerodynamics of this fan are investigated...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2020, 142(9): 091011.
Paper No: TURBO-20-1060
Published Online: August 25, 2020
... aerodynamics The possibility for unsteady blade row interaction to affect rotor film cooling performance has been recognized for some time, since the first measurements of film effectiveness on rotating blades showed discrepancies compared to predictions based on cascade and flat-plate measurements [ 1...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. November 2012, 134(6): 061023.
Published Online: September 4, 2012
... of the turbine stage. Numerical simulations were conducted using the Rolls-Royce in-house code HYDRA, with and without inlet swirl. References 1 Qureshi , I. , Smith , A. D. , and Povey , T. , 2011 , “ HP Vane Aerodynamics and Heat Transfer in the Presence of Aggressive Swirl...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041007.
Published Online: July 20, 2011
...M. Lorenz; A. Schulz; H.-J. Bauer The present experimental study is part of a comprehensive analysis accounting for heat transfer and aerodynamic losses on a highly loaded low pressure turbine blade with varying surface roughness. Whereas Part I focuses on heat transfer measurements at airfoil...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041006.
Published Online: July 20, 2011
... further measurements at the airfoil midspan with different deterministic surface roughness are considered. Part I investigates the external heat transfer enhancement due to rough surfaces, whereas part II focuses on surface roughness effects on aerodynamic losses. A set of different arrays...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041004.
Published Online: July 19, 2011
.... Although the average performances of the two blade tips are very similar, the full rim squealer exhibits marginally better film cooling effectiveness and slightly lower heat transfer coefficients. Comparison of the average aerodynamic and thermal performances of the squealer tips Full rim...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041002.
Published Online: July 19, 2011
... unsteady. The unsteady flow interactions between the turbine and the exhaust system have a strong impact on the blade loading or blade aerodynamic force. This paper describes the unsteady flow interactions between a single-stage axial turbine and an exhaust system. The experimental and numerical studies...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2012, 134(3): 031016.
Published Online: July 15, 2011
...Marco Raciti Castelli; Ernesto Benini This paper presents a model for the evaluation of energy performance and aerodynamic forces acting on a small helical Darrieus vertical axis wind turbine depending on blade inclination angle. It consists of an analytical code coupled to a solid modeling...
Journal Articles
Journal Articles