Soil erosion on steep hills with varying vegetation patterns

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(1)

Published: Jan. 1, 2025

Soil erosion on the slope is a major problem in northern region of Pakistan, causing hill instability and landslides. Previous research focused assessment soil hilly regions caused by intense flooding. However, there still gap investigating impact vegetation patterns densities reduction region. Therefore, current fills this with an experimental investigation various for using physical model regions. Experiments were performed under diverse scenarios including two Froude numbers (Fr = 0.17 0.20), (G/d 2.13 1.09, where G: between elements, d: diameter element), three slopes (10°, 15°, 20°) controlled laboratory setting. The findings indicate significant contribution denser to erosion. Moreover, newly modified pattern was introduced modifying existing gaps strips followed cutting rate 9% 12% compared regular arrangement similar scenarios. Consequently, outcomes may be useful establishing bio-shields as environmentally friendly method mitigating

Language: Английский

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Giesekus fluid flow in a curved pipe based on Gauss–Radau spectral method

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(5)

Published: May 1, 2025

This study utilizes the Chebyshev–Fourier spectral collocation method to investigate flow characteristics of Giesekus fluid in a curved pipe. Gauss–Radau points are employed avoid node placement at singular point, and artificial diffusion terms introduced into constitutive equations ensure stability numerical solutions higher Weissenberg numbers. The research explores influence physical parameters such as Reynolds number, curvature ratio, mobility factor α on characteristics. As increases, negative region second normal stress difference propagates toward center, while maximum positive diminishes proximity right wall. An increase intensifies shear-thinning phenomena, thereby significantly enhancing axial convective transport.

Language: Английский

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Flow and plants

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(11)

Published: Nov. 1, 2024

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