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Georgios Paterakis, Konstantinos Souflas, Andreas Naxakis and Panayiotis Koutmos
This work investigates the non-reacting time averaged and fluctuating flow field characteristics downstream of a variety of axisymmetric baffles, operating in combination with an upstream double-cavity premixer arrangement. The study aims to broaden know...
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Mouldi Ben Meftah and Michele Mossa
Turbulence measurement of a dense jet perpendicularly issued into a crossflow is investigated experimentally. The flow-velocity components were extensively measured with a high frequency Acoustic Doppler Velocimeter (ADV) system, whereas, a Micro Scale C...
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Mouldi Ben Meftah and Michele Mossa
Turbulence measurement of a dense jet perpendicularly issued into a crossflow is investigated experimentally. The flow-velocity components were extensively measured with a high frequency Acoustic Doppler Velocimeter (ADV) system, whereas, a Micro Scale C...
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Su-Chin Chen, Samkele Tfwala, Tsung-Yuan Wu, Hsun-Chuan Chan and Hsien-Ter Chou
A new type of collar, the hooked-collar, was studied through experiments and numerical methods. Tests were conducted using a hooked collar of a width of 1.25b and a height of 0.25b, where b is the bridge-pier width. The hooked-collar efficiency was evalu...
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Sanghyeon Kim, Cheolung Cheong and Warn-Gyu Park
In this study, cavitation flow around a hydrofoil and its radiated hydro-acoustic fields were numerically investigated, with an emphasis on the effects of viscous flux vectors. The full three-dimensional unsteady compressible Reynolds-averaged Navier?Sto...
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Younes Menni, Ahmed Azzi
Pág. 16 - 25
A computational fluid dynamic analysis of thermal and aerodynamic fields for an incompressible steady-state flow of a Newtonian fluid through a two-dimensional horizontal rectangular section channel with upper and lower wall-attached, vertical, staggered...
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Prateek Kumar Singh, Xiaonan Tang and Hamidreza Rahimi
Numerous sources of overtopping and flood events suggest different cross-sectional land characteristics of the river and urban river water systems. Multiple stages of floodplains in compound channels are viable in urban areas to facilitate bank slope sta...
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Santiago Laín, Jaime H. Lozano-Parada and Javier Guzmán
In this contribution, an unsteady numerical simulation of the flow in a microfluidic oscillator has been performed. The transient turbulent flow inside the device is described by the Unsteady Reynolds Averaged Navier?Stokes equations (URANS) coupled with...
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Edward Canepa, Davide Lengani, Alessandro Nilberto, Daniele Petronio, Daniele Simoni, Marina Ubaldi and Pietro Zunino
The paper presents a detailed analysis of particle image velocimetry (PIV) measurements performed in a turbine cascade representative of highly accelerated low-pressure turbine (LPT) blades. Two cameras have been simultaneously used to observe a great po...
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Duy Thien Nguyen, Blake Maher and Yassin Hassan
The current work experimentally investigates the flowfield characteristics of an under-expanded turbulent jet impinging on a solid surface for various nozzle-to-plate distances 2.46 D j , 1.64 D j , and 0.82 D j ( D j i...
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Seungho Hong, Celio Biering, Terry W. Sturm, Kwang Seok Yoon and Juan A. Gonzalez-Castro
Large-scale water resources systems are often managed by an integrated set of hydraulic structures that are vulnerable to wider ranges of discharge and tailwater elevation than envisioned in their original design due to climate change and additional proj...
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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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José Felix Zapata Usandivaras, Annafederica Urbano, Michael Bauerheim and Bénédicte Cuenot
Improving the predictive capabilities of reduced-order models for the design of injector and chamber elements of rocket engines could greatly improve the quality of early rocket chamber designs. In the present work, we propose an innovative methodology t...
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Pavel Polivanov, Oleg Vishnyakov and Andrey Sidorenko
The problem of flow control under conditions of a turbulent boundary layer at transonic and supersonic free-stream velocities is considered. Such flows are integral components of the flight process and exert significant effects on the flow around both th...
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Feng Wang, Peng Huang, Rongxin Zhao, Huayong Wu, Mengjin Sun, Zijie Zhou and Yun Xing
Debris poses multifaceted risks and jeopardizes various aspects of the environment, human health, safety, and infrastructure. The debris trajectory in turbulent wind flow is more dispersed due to the inherent randomness of the turbulent winds. This paper...
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Abdulghani Mohamed, Matthew Marino, Simon Watkins, Justin Jaworski and Anya Jones
There is a growing desire to operate Uncrewed Air Vehicles (UAVs) in urban environments for parcel delivery, and passenger-carrying air taxis for Advanced Air Mobility (AAM). The turbulent flows and gusts around buildings and other urban infrastructure c...
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Joshua D. Blake, Adrian Sescu, David Thompson and Yuji Hattori
Large-eddy simulation (LES)-based jet noise predictions do not resolve the entire broadband noise spectra, often under-predicting high frequencies that correspond to un-resolved small-scale turbulence. The coupled LES-synthetic turbulence (CLST) model is...
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Giacomo Rismondo, Marta Cianferra and Vincenzo Armenio
The present paper contains the results of the numerical analysis of the interaction between a Newtonian incompressible turbulent flow and a linear elastic slender body, together with the influence of the fluid?structure interaction (FSI) on the noise gen...
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Fenghui Han, Yuxiang Liu, Qingyuan Lan, Wenhua Li and Zhe Wang
Double-curved pipes are widely employed as essential components of subsea pipeline systems. Considering the layout flexibility and application diversity, there are various spatial structures for the double-curved combinations. However, few studies have c...
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Cheng-Kai Chang, Jau-Yau Lu, Shi-Yan Lu, Zhong-Xiang Wang and Dong-Sin Shih
This study discusses the mechanism for the occurrence of equilibrium and non-equilibrium scour holes. By using a particle image velocimetry (PIV) measurement system, it measures the turbulent flow fields in an open channel moving through the rough bed be...
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