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Gustavo Lopes, Loris Simonassi and Sergio Lavagnoli
The aerodynamics of a high-speed low-pressure turbine (LPT) cascade were investigated under steady and unsteady inlet flows. The tests were performed at outlet Mach (M) and Reynolds numbers (Re" role="presentation">????Re
R
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) of 0.90" role="presentatio...
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Eugenio Giacomazzi, Donato Cecere and Nunzio Arcidiacono
The article is devoted to the analysis of the flame anchoring mechanism in the test case MASCOTTE C-60 RCM2 on supercritical hydrogen/oxygen combustion at 60 bar, with transcritical (liquid) injection of oxygen. The case is simulated by means of the in-h...
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Walter T. Maier, Jacob T. Needels, Catarina Garbacz, Fábio Morgado, Juan J. Alonso and Marco Fossati
SU2-NEMO, a recent extension of the open-source SU2 multiphysics suite?s set of physical models and code architecture, is presented with the aim of introducing its enhanced capabilities in addressing high-enthalpy and high-Mach number flows. This paper d...
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Constantinos F. Panagiotou, Fotos S. Stylianou, Elias Gravanis, Evangelos Akylas and Constantine Michailides
In this paper, we propose an algebraic model for turbulent scalar-flux vector that stems from tensor representation theory. The resulting closure contains direct dependence on mean velocity gradients and quadratic products of the Reynolds stress tensor. ...
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Dechao Hu, Min Wang, Shiming Yao and Zhongwu Jin
Because of special morphologies and complex runoff?tide interactions, the landward floodtide flows in Yangtze Estuary are observed to spill over from the North to the South Branches, carrying a lot of sediment. To quantitatively clarify the spillover pro...
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Vanessa Wörner, Phillip Kreye and Günter Meon
Bias-correction methods are commonly applied to climate model data in hydrological climate impact studies. This is due to the often large deviations between simulated and observed climate variables. These biases may cause unrealistic simulation results w...
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Argyris G. Panaras
The reasons for the difficulty in simulating accurately strong 3-D shock wave/turbulent boundary layer interactions (SBLIs) and high-alpha flows with classical turbulence models are investigated. These flows are characterized by the appearance of strong ...
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Charles Onyutha and Patrick Willems
This paper focuses on uncertainty analysis to aid decision making in applications of statistically modeled flow-duration-frequency (FDF) relationships of both daily high and low flows. The analysis is based on 24 selected catchments in the Lake Victoria ...
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Hongming Cai, Zhuoran Zhang, Ziqi Li and Hongda Li
Cavity flows are a prevalent phenomenon in aerospace engineering, known for their intricate structures and substantial pressure fluctuations arising from interactions among vortices. The primary objective of this research is to predict noise levels in hi...
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Ping-Han Chung, Yi-Xuan Huang, Kung-Ming Chung, Chih-Yung Huang and Sergey Isaev
Vortex generators (VGs) are a passive method by which to alleviate boundary layer separation (BLS). The device-induced streamwise vortices propagate downstream. There is then lift-off from the surface and the vortex decays. The effectiveness of VGs depen...
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Victor V. Kuzenov, Sergei V. Ryzhkov and Aleksey Yu. Varaksin
This paper provides an overview of modern research on magnetoplasma methods of influencing gas-dynamic and plasma flows. The main physical mechanisms that control the interaction of plasma discharges with gaseous moving media are indicated. The ways of o...
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Yanjun Chen, Shengye Wang and Wei Liu
Over the past years, there has been innovative ideas about data-driven turbulence modeling proposed by scholars all over the world. This paper is a continuity of these significant efforts, with the aim of offering a better representation for turbulence p...
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Yajun Zhu, Chengwen Zhong and Kun Xu
The gas-kinetic scheme (GKS) and the unified gas-kinetic scheme (UGKS) are numerical methods based on the gas-kinetic theory, which have been widely used in the numerical simulations of high-speed and non-equilibrium flows. Both methods employ a multisca...
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Lizeth Torres, José Noguera, José Enrique Guzmán-Vázquez, Jonathan Hernández, Marco Sanjuan and Arturo Palacio-Pérez
We study a high-viscosity two-phase flow through an analysis of the corresponding pressure signals. In particular, we investigate the flow of a glycerin?air mixture moving through a horizontal pipeline with a U-section installed midway along the pipe. Di...
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Nadezhda S. Smirnova,Michael Dumbser,Mikhail N. Petrov,Alexander V. Chikitkin,Evgeniy I. Romenski
Pág. 83 - 87
In this paper we propose a new flux splitting approach for the symmetric hyperbolic thermodynamically compatible (SHTC) equations of compressible two-phase flow which can be used in finite-volume methods. The approach is based on splitting the entire mod...
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Anna A. Frolova,Vladimir A. Titarev
Pág. 116 - 120
Numerical solution of the Boltzmann equation for stationary high-speed flows around complex three-dimensional bodies is an extremely difficult computational problem. This is because of high dimension of the equation and lack of efficient implicit methods...
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Donatella Termini and Tommaso Moramarco
The estimation of velocity profile in turbulent open channels is a difficult task due to the significant effects of the secondary flow. The present paper investigates the mechanism of the velocity-dip phenomenon, whereby the location of the maximum veloc...
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Donatella Termini and Tommaso Moramarco
The estimation of velocity profile in turbulent open channels is a difficult task due to the significant effects of the secondary flow. The present paper investigates the mechanism of the velocity-dip phenomenon, whereby the location of the maximum veloc...
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Ruifeng Hu, Limin Wang, Ping Wang, Yan Wang and Xiaojing Zheng
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Charles R. Ortloff
High-speed fluid flows over roughened surfaces occur in many engineering applications; one important application involves high velocity water flows in pipelines with roughened interior walls where the wall roughness affects head loss estimates necessary ...
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