Local Scour Mechanisms and Prediction Methods Around Offshore Wind Turbine Foundations: Insights and Future Directions DOI
Qi Yang, Ruigeng Hu, Peng Yu

et al.

Journal of Ocean University of China, Journal Year: 2024, Volume and Issue: 23(5), P. 1248 - 1262

Published: Sept. 10, 2024

Language: Английский

Fish migration modeling and habitat assessment in a complex fluvial system DOI
Shikang Liu, Nan Wang, Carlo Gualtieri

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 374, P. 124146 - 124146

Published: Jan. 16, 2025

Language: Английский

Citations

1
Vortex-induced vibration and wake interference of two-degree-of-freedom elastically mounted elliptical cylinders in tandem at various spacing DOI
Mehdi Badri Ghomizad,

Hosnieh Kor,

Minh Doan

et al.

Ocean Engineering, Journal Year: 2024, Volume and Issue: 310, P. 118637 - 118637

Published: July 8, 2024

Language: Английский

Citations

6
A DNS Simulation of the Low-Reynold Flow Through an Elliptical Cylinder Using the Lattice Boltzmann Method DOI
Van Tuyen Vu,

Quoc Dung Ta,

Viet Dung Duong

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Effects of irregular and regular geometric shape of cylinders on surrounding fluid flow DOI
Xianfa Wei, Haichun Ma, Jiazhong Qian

et al.

Journal of the Brazilian Society of Mechanical Sciences and Engineering, Journal Year: 2025, Volume and Issue: 47(6)

Published: May 2, 2025

Language: Английский

Citations

0
Numerical analysis of flow interference passing through tandem cylinders at Re = 3900 DOI
Cheng Chang, Wei Zhang, Ziheng Huang

et al.

Ocean Engineering, Journal Year: 2024, Volume and Issue: 313, P. 119546 - 119546

Published: Oct. 18, 2024

Language: Английский

Citations

2
Impact of free-stream orientation and thermal buoyancy on aerodynamic and heat transfer characteristics in mixed convective flow past an elliptical cylinder DOI
Ashish Garg, Md. Reyaz Arif, Nadeem Hasan

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(7)

Published: July 1, 2024

This study conducts a thorough numerical investigation into the aerodynamic and heat transfer characteristics of mixed convective flow past an elliptical cylinder. Analysis is carried out for constant Reynolds number (Re = 100), Prandtl (Pr 0.71), angle attack (λ=0°), utilizing Oberbeck–Boussinesq approximation to solve mass, momentum, energy equations via in-house solver. It explores wide range free-stream orientations, from 0° (upward aligned with gravity) 90° (cross-flow). Additionally, Richardson (Ri) varied forced convection (Ri 0) regimes, up Ri 1.25. Two aspect ratios (AR=Major axis length/Minor length), specifically 2 4, are examined assess their impact on behavior. The paper elucidates variations lift coefficient, drag Nusselt at different orientations. Furthermore, it investigates dynamics both steady unsteady correlating behavior observed characteristics. Steady periodic regimes identified in parametric space (α, Ri) AR 4. mean rate increases (α=0°, 30°, 60°) except α=90°, where decreases. These findings provide insights designing compact exchangers elliptic tube cross-sections.

Language: Английский

Citations

1
Wake transitions of the flow around two side-by-side elliptic cylinders DOI

Thi Dieu Thuy Phan,

Dinh Thang Nguyen,

Van Luc Nguyen

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(12)

Published: Dec. 1, 2024

The wake transitions of the flow past two side-by-side elliptical cylinders were numerically investigated using lattice Boltzmann method at Reynolds numbers (Re) 40, 100, and 150, with various spacing ratios (L/D, where L represents distance between cylinder centers D is their diameter) aspect (AR). This study elucidated effects Re, AR, L/D on characteristics, including structures, hydrodynamic coefficients, Strouhal number (St), spectral energy exerted both cylinders. Six distinct patterns are observed in AR−L/D space, such as steady shear layers, anti-phase synchronized streets, in-phase single bluff body, flip-flopping, chaotic flow. These characterized through detailed analyses, vorticity contour plots, time histories drag lift power density, proper orthogonal decomposition fluctuations into deterministic spatial structures. Additionally, pattern maps diagrams time-averaged pressure coefficients surface provided to assess influence behavior. showed near-identical trends significant variations depending AR. When AR small, coefficient root-mean-squared found be substantially higher than those an isolated cylinder. Furthermore, a notable increase was when attributed repulsive forces At (Re=100 & 150), substantial differences St emerge, particularly for smaller values, despite being configuration.

Language: Английский

Citations

1
Local Scour Mechanisms and Prediction Methods Around Offshore Wind Turbine Foundations: Insights and Future Directions DOI
Qi Yang, Ruigeng Hu, Peng Yu

et al.

Journal of Ocean University of China, Journal Year: 2024, Volume and Issue: 23(5), P. 1248 - 1262

Published: Sept. 10, 2024

Language: Английский

Citations

0