Impact of a Guide Vane clearance Gap in a Francis turbine flow; a comparison between experimental and computational Data [PDF]
The problem of the leakage flow between Guide Vane and the covering plate due to erosion is a strong source of inefficiency. To investigate this issue the TU university of Wien built a model, testing it at several configurations of Gap span and closing ...
Frau, Nicola
core
Analysis of parameters influencing build accuracy of a SLM printed compressor outlet guide vane [PDF]
The paper describes the manufacture of an outlet guide vane (OGV) of jet engines by the Selective Laser Melting (SLM) process, in view of current challenges for conventional machining approaches such as; high airfoil profile tolerances, limited tooling ...
Appleby, John +3 more
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Unstable guide vane torsional mode self-excited vibrations that occur at small guide vane openings during the transient operations with pump flow, such as the starting and closing of the pump mode, are considered to have potentially severe consequences ...
Quanwei Liang +3 more
doaj +1 more source
Enhancing the Efficiency of the Savonius Hydro Turbine in Pipe Through Design Optimization and Computational Fluid Dynamics Flow Modeling [PDF]
This work explores the performance improvement of a Savonius Hydro Turbine (SHT) installed inside a 4-inch pipeline by examining the combined effects of the guide-vane angle and central-shaft opening ratio were assessed through Computational Fluid ...
S. Nuyam +3 more
doaj +1 more source
Runaway is a common phenomenon in pump-turbines for hydropower and ocean power, accompanied by strong instability, which can easily lead to accidents.
Di Zhu +4 more
doaj +1 more source
The underpinning research is Nick Fox’s broad body of work Phantasieblume, exploring longing, loss and desire, conducted in his studio since 2007 and further supported during a Research and development Residency at the National Glass centre, Sunderland ...
Fox N
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Study on performance and flow loss of reactor coolant pump with different laws of guide vane angle
To study the influence of different laws of guide vane angle on the performance of reactor coolant pump (RCP), five models of RCP with different guide vane were designed, and the three‐dimensional numerical calculation was carried out.
Daoxing Ye +5 more
doaj +1 more source
Hydraulic Characteristics of Axial Flow Pump Device With Different Guide Vane Inlet Angles
To improve the efficiency of low-head pump device in the large-discharge and low-head domain, the hydraulic characteristics of vertical axial flow pump devices with different guide vane inlet angles were studied using computational fluid dynamics (CFD ...
Lei Xu +7 more
doaj +1 more source
Effect of Different Types of External Guide Vanes on the Performance of High-Pressure Centrifugal Compressor [PDF]
In order to reduce exit swirl and obtain the desired Mach number, axial exit guide vanes (EGV) are often employed in a centrifugal compressor. NASA CC3 compressor, with wedge vane diffuser and without EGV, is considered as the base model for the analysis
P. Niveditha, B. S. Gopi
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A Straight-bladed Vertical Axis Wind Turbine with a Directed Guide Vane Row
A straight-bladed vertical axis wind turbine with a directed guide vane row has been proposed in order to enhance its torque. The experimental study of the proposed wind turbine was carried out by a wind tunnel with an outlet diameter of 1.8m. The tested
Manabu TAKAO +4 more
doaj +1 more source

