Results 41 to 50 of about 94,894 (308)

Investigation of the Shear Flow Effect and Tip Clearance on a Low Speed Axial Flow Compressor Cascade

International Journal of Rotating Machinery, 2013
This paper explores the effect of inlet shear flow on the tip leakage flow in an axial flow compressor cascade. A flow with a high shear rate is generated in the test section of an open circuit cascade wind tunnel by using a combination of screens with a
Mahesh Varpe, A. M. Pradeep
doaj   +1 more source

Energy Performance and Flow Patterns of a Mixed-Flow Pump with Different Tip Clearance Sizes

Energies, 2017
Tip clearance between blade end and shroud is inevitable in pump operation and of great importance on pump energy performance and pressure fluctuation. As the tip clearance size increases, the head and efficiency of the mixed flow pump drop accordingly ...
Yabin Liu, Lei Tan, Yue Hao, Yun Xu
doaj   +1 more source

Blade Loading Effects on Axial Turbine Tip Leakage Vortex Dynamics and Loss [PDF]

, 2012
umerical simulations have been carried out to define the loss generation mechanisms associated with tip leakage in un-shrouded axial turbines. Tip clearance vortex dynamics are a dominant feature of two mechanisms important in determining this loss: (i ...
Clemens, E. F., Gegg, S. G., Greitzer, Edward M., Huang, Arthur C., Tan, Choon S., Turner, E. R.   +5 more
core   +1 more source

Interference Effect of Shock Wave on Tip Leakage Vortex in a Transonic Variable Nozzle Turbine

International Journal of Turbomachinery, Propulsion and Power
The tip leakage flow at both sides of the nozzle vane is an important factor for the reduction in turbine aerothermal performance. A strong shock wave is generated at the trailing edge of the nozzle vane under transonic condition, which can interfere ...
Xinguo Lei, Qin Luo, Hanzhi Zhang
doaj   +1 more source

Panel Discussion on Inducer Design Criteria [PDF]

, 2003
This article reports a panel discussion titled Inducer Design Criteria presented at the 9th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-9).
Acosta, Allan J., Tsujimoto, Yoshinobu, Wegner, Marc   +2 more
core   +3 more sources

Numerical analysis of the cavitating flow in an axial flow waterjet pump with special emphasis on the tip leakage flow and tip leakage vortex

Journal of Physics: Conference Series, 2022
Abstract Due to the structural design requirements, tip leakage flow is a common phenomenon in the field of axial flow rotating machinery. The tip leakage flow interacts with the mainstream and induce complex tip leakage vortex. When the local pressure drops to the saturation pressure, cavitation may occur in flow passage and the vortex ...
Xiaoyang Zhao, Tairan Chen, Biao Huang, Guoyu Wang   +3 more
openaire   +1 more source

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

FEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso, Jaime Hiniesta‐Valero, Alejandra Guerra‐Castellano, Miguel A. De la Rosa, Irene Díaz‐Moreno   +4 more
wiley   +1 more source

Focusing Schlieren Visualization of Transonic Turbine Tip-Leakage Flows [PDF]

International Journal of Turbomachinery, Propulsion and Power, 2020
This paper presents a focusing schlieren system designed for the investigation of transonic turbine tip-leakage flows. In the first part, the functional principle and the design of the system are presented. Major design considerations and necessary trade-offs are discussed.
Passmann, Maximilian, aus der Wiesche, Stefan, Joos, Franz   +2 more
openaire   +3 more sources

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source