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Janka Bobek, Attila Egedy, Dóra Rippel-Petho
Pág. 457 - 468
The scope of this study was to investigate the homogenization of a two-layer stratified liquid in a tank where liquid stirring was achieved by carrying out external recirculation. Furthermore, the aim of the research was to observe the effect of the heig...
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Bálint Lendvai, Tamás Benedek
Pág. 279 - 288
At moderate Reynolds numbers and angles of attack, the Laminar Boundary Layer (LBL) becomes unstable on the surface of airfoils, and causes periodic vortex shedding, which means undesired tonal peaks in the spectrum of the emitted aeroacoustic noise alon...
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Pedro Leite Ferreira and Dídia Isabel Cameira Covas
The current paper aims at assessing the effect of the radial mesh on the description of the axial velocity in steady-state and transient conditions and at presenting the results of a new optimized equal-area mesh. For this purpose, a quasi-2D model is im...
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Milad Mohammadi and Mohammad Sadegh Abedinejad
A comprehensive investigation of turbulent combustion is accomplished to study the relationship between nitrogen oxide (NO) formation and entropy generation distribution in a non-premixed propane combustion. The radiation heat transfer and combustion are...
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Ettore Bertolini, Paul Pieringer and Wolfgang Sanz
The aim of this work is to study the influence of different subgrid-scale (SGS) closure models and inflow turbulence conditions on the boundary layer transition on the suction side of a highly loaded transonic turbine cascade in the presence of high free...
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Slawomir Kubacki, Daniele Simoni, Davide Lengani and Erik Dick
An algebraic intermittency model for boundary layer flow transition from laminar to turbulent state, is extended using an experimental data base on boundary layer flows with various transition types and results by large eddy simulation of transition in a...
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Judah Rutledge, Jesse J. French
Pág. 101 - 108
A water channel for performing flow visualization and studying scale models in fluid mechanics was designed, analyzed, and manufactured with commercially available components. The material cost of the channel is 10% of the leading educational units, and ...
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Da-Qing Li, Per Lindell and Sofia Werner
Unexpected low value of the relative rotative efficiency ?R is sometimes noted when scaling the towing tank model-test result with the ITTC-78 method to obtain the propulsive efficiency factors of propellers. The paper explains the causes of this phenome...
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Constantin Schosser, Stefan Lecheler, Michael Pfitzner
Pág. 12 - 22
This paper summarises the numerical and theoretical studies of the incompressible, laminar airflow through a single flow passage of a blade-less radial turbine. Furthermore, it yields the numerical validation of the simplified theoretical model for incom...
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Seyed Hadi Seyedin, Mehdi Ardjmand, Ali Akbar Safekordi, Shahram Raygan
Pág. 117 - 127
Experimentally investigated in this work is the hydrodynamics of particulates motion in a cylindrical fluidized bed equipped with a pneumatic nozzle jet flow. Subsequently, the computational fluid dynamics (CFD) is combined with the Eulerian formulation ...
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Ioan Sarbu and Anton Iosif
The dual reciprocity method (DRM) is a highly efficient numerical method of transforming domain integrals arising from the non-homogeneous term of the Poisson equation into equivalent boundary integrals. In this paper, the velocity and temperature fields...
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Martin Lasota, Petr ?idlof, Manfred Kaltenbacher and Stefan Schoder
In an aeroacoustic simulation of human voice production, the effect of the sub-grid scale (SGS) model on the acoustic spectrum was investigated. In the first step, incompressible airflow in a 3D model of larynx with vocal folds undergoing prescribed two-...
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Muye Ge, Urban Svennberg and Rickard E. Bensow
Sheet cavitation inception can be influenced by laminar boundary layer flow separation under Reynolds numbers regimes with transitional flow. The lack of accurate prediction of laminar separation may lead to massive over-prediction of sheet cavitation un...
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Andrea Sellitto, Salvatore Saputo, Francesco Di Caprio, Aniello Riccio, Angela Russo and Valerio Acanfora
Numerical investigation on the damage behavior of CFRP laminates subjected to low velocity impacts.
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Stefania Piazza, Mariacrocetta Sambito and Gabriele Freni
Urban looped water distribution systems are highly vulnerable to water quality issues. They could be subject to contamination events (accidental or deliberate), compromising the water quality inside them and causing damage to the users? health. An effici...
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Xiaobing Wang, Junqiang Wu, Jianzhong Chen, Yuping Li, Zhongliang Zhao, Guangyuan Liu, Yang Tao and Neng Xiong
Cryogenic wind tunnels provide the for possibility aerodynamic tests to take place over high Reynolds numbers by operating at a low gas temperature to meet the real flight simulation requirements, especially for state-of-the-art large transport aircrafts...
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Carlo Giorgio Grlj, Nastia Degiuli, Andrea Farkas and Ivana Martic
The present study aims to investigate the scale effects of the open water propeller performance using computational fluid dynamics (CFD). The results are presented for the propeller which was previously 3D scanned and digitized. The results obtained usin...
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Pengfei Ning, Dianjun Zhang, Xuefeng Zhang, Jianhui Zhang, Yulong Liu, Xiaoyi Jiang and Yansheng Zhang
The Array for Real-time Geostrophic Oceanography (Argo) program provides valuable data for maritime research and rescue operations. This paper is based on Argo historical and satellite observations, and inverted sea surface and submarine drift trajectori...
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Peng Lin, Jifei Wu, Lianshan Lu, Neng Xiong, Dawei Liu, Jichuan Su, Guangyuan Liu, Yang Tao, Junqiang Wu and Xueqiang Liu
The effect of the Reynolds number on the flying wing common research model with a large sweep angle and small aspect ratio is studied by numerical simulation. The helicity cross-flow transition correction of the Langtry?Menter model is established in vie...
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Md.Zahid Hasan
Many high-strength composite materials have been developed for aircraft structures. GLAss fiber REinforced aluminum (GLARE) is one of the high-performance composites. The review of articles, however, yielded no study on the impact damage of heated GLARE ...
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