Results 51 to 60 of about 739 (180)

Long Wave Flow Interaction with a Single Square Structure on a Sloping Beach

Journal of Marine Science and Engineering, 2015
In the context of dam breaks, tsunami, and flash floods, it is paramount to quantify the time-history of forces by the rapidly transient flow to vertical structures and the characteristics of the induced flow patterns. To resemble on-land tsunami-induced
Gian C. Bremm, Nils Goseberg, Torsten Schlurmann, Ioan Nistor   +3 more
doaj   +1 more source

Understanding the Influence of Wake Cavitation on the Dynamic Response of Hydraulic Profiles under Lock-In Conditions

Energies, 2021
To accelerate the integration of fluctuating renewable energy technologies in the power systems, it is necessary to increase the flexibility of hydropower by operating turbines at off-design conditions.
Rafel Roig, Jian Chen, Oscar de la Torre, Xavier Escaler   +3 more
doaj   +1 more source

Vortex Line Density in a Superfluid Turbulent Wake in the Zero Temperature Limit

Annalen der Physik, Volume 538, Issue 1, January 2026.
The quasiclassical conjecture for quantum turbulence in a pure superfluid straightforwardly leads to the definition of the superfluid Reynolds number, Res=ud/κ$Re_s=ud/\kappa$, and suggests that the effective quantum viscosity should be of the order of the circulation quantum κ$\kappa$.
Hiromitsu Takeuchi
wiley   +1 more source

Numerical and Experimental Investigations of the Sound Generation and Possible Optimization Techniques of Wires for Fan Guard Grilles

International Journal of Turbomachinery, Propulsion and Power
For modern axial fans optimized for low self-noise, additional noise emission from guard grilles mounted downstream of the fan can become one of the dominant sources of sound.
Sandra Hub, Frieder Lörcher
doaj   +1 more source

Assessment of Aerodynamic Plates Subjected to Von Kármán Vortex Street for Enhancing the Wind Energy Generation in Blade-Less Devices

Resources, 2023
This study explores the feasibility of using an oscillating plate downstream of a cylindrical body to produce mechanical energy from a Von Kármán vortex street under sub-critical flow conditions (Re = 72,500). The study aims to quantify the impact of the
John Zuluaga, Santiago Ricardo, Andrés Oostra, Gilberto Materano, Apostolos Spanelis   +4 more
doaj   +1 more source

Effects of Multistage Geotechnical Erosion on Dynamic Mechanical Response of Buried Pipelines

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
River‐spanning pipelines are prone to serious hazards during flooding events, which can trigger erosion, exposure, and large‐scale flotation. In this research, a numerical simulation framework was developed using smoothed particle hydrodynamics (SPH) to analyze the dynamic behavior of pipelines subjected to dam‐breach flood scenarios.
Ning Shi, Hong Zhang, Jianyong Han
wiley   +1 more source

Improving Pedestrian Ventilation System in Hot and Dry Climates Using Earth‐to‐Air Heat Exchanger

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Global warming and increasing temperatures in cities are contemporary issues that countries around the world are facing. Climate change has resulted in unprecedented temperatures, making it necessary to introduce alternative ways to reduce the use of traditional energy sources.
Ahmed Albarghooth, Abas Ramiar, Reza Ramyar, Claire Gao   +3 more
wiley   +1 more source

Non-invasive detection of vortex street cavitation [PDF]

, 2021
Objective: This paper introduces a methodology for the non-intrusive detection of von Kármán vortex street cavitation. It is based on the cyclostationary analysis of the airborne noise radiated by the collapsing bubbles.
Castro, A., Botero, F.
core   +1 more source

Piezoelectric Analysis of a Hydrofoil Undergoing Vortex-Induced Vibration

Journal of Marine Science and Engineering
This study numerically investigates the piezoelectric behavior of a hydrofoil under vortex-induced excitation. The fluid field, characterized by a Kármán vortex street forming around the hydrofoil, is solved using the finite volume method (FVM) based on ...
Shiyan Sun, Yong Yang, Qingfeng Wang
doaj   +1 more source

CFD‐Assisted Spray Decontamination Process Assessment for Nuclear Tank Decommissioning

Science and Technology of Nuclear Installations, Volume 2026, Issue 1, 2026.
The decontamination of high‐level radioactive nuclear storage tanks with complex internal devices poses critical challenges in nuclear decommissioning engineering. This study develops a computational fluid dynamics (CFD) framework integrating the volume of fluid–discrete phase model (VOF–DPM) with the Eulerian wall film model (EWFM) to systematically ...
Yang Fei, Zhenqi Shen, Jing Ma, Fang Bao, Kai Xu   +4 more
wiley   +1 more source