Time-accurate Turbulence Modeling of Swirling Flow for Hydropower Application [PDF]
, 2014 Hydraulic turbomachines have played a prominent role in the procurement of renewable energy for more than a century. Embedded in the context of general technological progress, their design for efficiency and reliability has reached an outstanding level ...
Javadi, Ardalan
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Numerical Methods Comparison of Shock-Induced Separation on Transonic Axisymmetric Hump
Applied SciencesA transonic hump with a Mach number (M∞) of 0.875 was utilized to compare the prediction capabilities of RANS, URANS, IDDES, and IDDES-SLA for shock-induced separation. The results matched the experimental data concerning pressure, friction coefficients,
Miao Zhang +4 more
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An analysis of a swimmer’s passive wave resistance using experimental data and CFD simulations
, 2014 The passive resistance of a swimmer on the free surface has previously been researched experimentally. The contribution of wave resistance to total drag for a swimmer with a velocity around 2.0 m.s-1 was found to vary from 5% for Vorontsov and Rumyantsev
Banks, J. +3 more
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CFD Simulations and Phenomenological Modelling of Aerodynamic Stall Hysteresis of NACA 0018 Wing
AerospaceComputational simulations of three-dimensional flow around a NACA 0018 wing with an aspect ratio of AR=5 were carried out by using the Unsteady Reynolds-Averaged Navier–Stokes (URANS) equations with the Shear-Stress Transport turbulence model closure ...
Mohamed Sereez +2 more
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Eine chromatographische Methode für die Trennung des Urans von Gadolininum und Lanthan
Communications, Faculty Of Science, University of Ankara Series B Chemistry and Chemical Engineering, 1974 In der vorliegenden Arbeit wurde die Verwendung der Essigsâure zusammen mit einigen organischen Lösüngsmittel für die Trennung des Urans von Gadoli- nium und Lanthan untersucht. Aus den Ergebnissen von in Essigsâure-organische Lösungsmittel-Gemischen durchgeführten Arbeiten wurde festgestellt, dafi bei Verwendung organischer Lösüngsmittel anstelle von ...
openaire +2 more sources
Performance Enhancement of the Flexible Transonic Truss-Braced Wing Aircraft Using Variable-Camber Continuous Trailing-Edge Flaps [PDF]
Aircraft designers are to a growing extent using vehicle flexibility to optimize performance with objectives such as gust load alleviation and drag minimization.
Bartels, Robert E. +2 more
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Numerical Investigation of Subsonic Flow through an Aggressive Flat Bottom Diffuser [PDF]
, 2014 Airflow through an aggressive, constant pressure gradient, flat-bottomed 2D diffuser is simulated with the compressible version of the stabilized, implicit finite element code PHASTA. The freestream Mach number of fluid entering the diffuser is held at a
Mati, Nicholas Alexander
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CHANCE: A FRENCH-GERMAN HELICOPTER CFD-PROJECT [PDF]
, 2006 The paper gives an overview of the CHANCE research project (partly supported by the French DPAC and DGA and the German BMWA) which was started in 1998 between the German and French Aerospace Research Centres DLR and ONERA, the University of Stuttgart and
Altmikus, Andree +4 more
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Pressure Bifurcation Phenomenon on Supersonic Blowing Trailing Edges
, 2018 Turbine blades operating in transonic-supersonic regime develop a complex shock wave system at the trailing edge, a phenomenon that leads to unfavorable pressure perturbations downstream and can interact with other turbine stages. Understanding the fluid
de Vicente, Javier +3 more
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EnergiesThis study investigates the aerodynamic performance and flow dynamics of an H-type Darrieus vertical axis wind turbine (VAWT) using combined numerical and experimental methods.
Jan Michna, Krzysztof Rogowski
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