Literatura académica sobre el tema "FST-Induced transition"
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Artículos de revistas sobre el tema "FST-Induced transition"
Nakagawa, Kosuke, Takahiro Tsukahara y Takahiro Ishida. "DNS Study on Turbulent Transition Induced by an Interaction between Freestream Turbulence and Cylindrical Roughness in Swept Flat-Plate Boundary Layer". Aerospace 10, n.º 2 (30 de enero de 2023): 128. http://dx.doi.org/10.3390/aerospace10020128.
Texto completoHe, S. y M. Seddighi. "Turbulence in transient channel flow". Journal of Fluid Mechanics 715 (9 de enero de 2013): 60–102. http://dx.doi.org/10.1017/jfm.2012.498.
Texto completoPhani Kumar, P., A. C. Mandal y J. Dey. "Effect of a mesh on boundary layer transitions induced by free-stream turbulence and an isolated roughness element". Journal of Fluid Mechanics 772 (7 de mayo de 2015): 445–77. http://dx.doi.org/10.1017/jfm.2015.203.
Texto completoHan, Sang-Kap, Min-Kyung Joo, Jeon-Kyung Kim, Woonhee Jeung, Heerim Kang y Dong-Hyun Kim. "Bifidobacteria-Fermented Red Ginseng and Its Constituents Ginsenoside Rd and Protopanaxatriol Alleviate Anxiety/Depression in Mice by the Amelioration of Gut Dysbiosis". Nutrients 12, n.º 4 (26 de marzo de 2020): 901. http://dx.doi.org/10.3390/nu12040901.
Texto completoStevenson, J. P. J., K. P. Nolan y E. J. Walsh. "Particle image velocimetry measurements of induced separation at the leading edge of a plate". Journal of Fluid Mechanics 804 (9 de septiembre de 2016): 278–97. http://dx.doi.org/10.1017/jfm.2016.532.
Texto completoVaid, Aditya, Nagabhushana Rao Vadlamani, Ananth Sivaramakrishnan Malathi y Vikrant Gupta. "Dynamics of Bypass Transition Behind Roughness Element Subjected to Pulses of Free-Stream Turbulence". Physics of Fluids, 10 de octubre de 2022. http://dx.doi.org/10.1063/5.0120241.
Texto completoSengupta, Aditi, Nivedita Gupta y Bryn Noel Ubald. "Separation-induced transition on a T106A blade under low and elevated free stream turbulence". Physics of Fluids 36, n.º 2 (1 de febrero de 2024). http://dx.doi.org/10.1063/5.0189358.
Texto completoMamidala, Santhosh B., André Weingärtner y Jens H. M. Fransson. "A comparative study of experiments with numerical simulations of free-stream turbulence transition". Journal of Fluid Mechanics 951 (14 de noviembre de 2022). http://dx.doi.org/10.1017/jfm.2022.883.
Texto completoĐurović, Kristina, Ardeshir Hanifi, Philipp Schlatter, Kenzo Sasaki y Dan S. Henningson. "Direct numerical simulation of transition under free-stream turbulence and the influence of large integral length scales". Physics of Fluids 36, n.º 7 (1 de julio de 2024). http://dx.doi.org/10.1063/5.0207016.
Texto completoWang, Taiyang, Yaomin Zhao, John Leggett y Richard Sandberg. "Direct Numerical Simulation of a High-Pressure Turbine Stage: Unsteady Boundary Layer Transition and the Resulting Flow Structures". Journal of Turbomachinery, 27 de septiembre de 2023, 1–28. http://dx.doi.org/10.1115/1.4063510.
Texto completoTesis sobre el tema "FST-Induced transition"
Bienner, Aurélien. "Real-gas effects on freestream induced transition and losses in ORC turbine flows". Electronic Thesis or Diss., Paris, HESAM, 2024. http://www.theses.fr/2024HESAE016.
Texto completoOrganic Rankine Cycle (ORC) systems appear as one of the solutions to answer the current energy and environmental challenges, owing to their significant potential for generating power. A key component for ORC is the expander, most often a turbine. For small systems, the latter works in the transonic to supersonic regimes and can be affected by the properties of the organic vapor used and exhibit strong non-ideal effects. In the present study, we investigate boundary layer (BL) transitions and losses mechanism in turbines under conditions representative of ORC for the organic vapor Novec649. We begin by reporting the first direct numerical simulation (DNS) and large-eddy simulations (LES) of transitional and turbulent BL of Novec at high-subsonic conditions. In the turbulent state, the profiles of dynamic flow properties are little affected by the gas properties and remain very close to incompressible DNS, despite the high-subsonic flow speed and even if genuine but very small compressibility effects are present. Our LES strategy is validated against the reference DNS and is used to investigate the influence of forcing frequency and amplitude on the established turbulent state. Then, for the first time, we investigate freestream turbulence (FST)-induced transition of dense-gas BL on flat plates and around the leading-edge of a turbine by means of LES. Due to the high Reynolds number conditions, the thin BL experience large-scale incoming turbulent structures which can, for relatively high intensities, promote a non-linear transition mechanism instead of the classical laminar streak transition mechanism. Compared to Novec flows, air BL are found to be slightly more unstable but retains overall similar characteristics, in particular concerning the transition mechanisms observed. Finally, the flow around an idealized blade vane configuration is tackle by means of Delayed Detached-Eddy Simulations (DDES), allowing fine-detail analysis of unsteady flow phenomena. As the non-ideality of the flow increases, a lower pressure ratio is achieved and the losses increases. With regards to air, Novec's high heat capacity reduces temperature fluctuations, suppressing the so-called energy separation phenomena, while accentuating pressure fluctuations in the wake. Compared to DDES, RANS simulations leads to an underestimation of the losses by about 20%
Actas de conferencias sobre el tema "FST-Induced transition"
Jain, Ishita, S. Katiyar y Subrata Sarkar. "Influence of Varying Freestream Turbulence on Flow Transition Over Distributed Surface Roughness". En ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/gt2024-124283.
Texto completoWang, Taiyang, Yaomin Zhao, John Leggett y Richard D. Sandberg. "Direct Numerical Simulation of an HPT Stage: Unsteady Boundary Layer Transition and the Resulting Flow Structures". En ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gt2023-102213.
Texto completoScillitoe, Ashley D., Paul G. Tucker y Paolo Adami. "Numerical Investigation of Three-Dimensional Separation in an Axial Flow Compressor: The Influence of Free-Stream Turbulence Intensity and Endwall Boundary Layer State". En ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-57241.
Texto completoKumar, Ravi, Pradeep Singh y Subrata Sarkar. "Mitigation of Laminar Separation Bubble Through Leading-Edge Modification of an Aerofoil With Herringbone Riblets". En ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/gt2024-124289.
Texto completoNagabhushana Rao, V., P. G. Tucker, R. J. Jefferson-Loveday y J. D. Coull. "Investigation of Wake Induced Transition in Low-Pressure Turbines Using Large Eddy Simulation". En ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94418.
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