Journal of Desert Research ›› 2025, Vol. 45 ›› Issue (1): 215-228.DOI: 10.7522/j.issn.1000-694X.2024.00156
Jialiang Sun(), Ning Huang, Yuhao Zhao, Binbin Pei, Jie Zhang(
)
Received:
2024-10-08
Revised:
2024-11-18
Online:
2025-01-20
Published:
2025-01-13
Contact:
Jie Zhang
CLC Number:
Jialiang Sun, Ning Huang, Yuhao Zhao, Binbin Pei, Jie Zhang. Application and validation of the varied porosity model in simulating sand-grown flexible plant[J]. Journal of Desert Research, 2025, 45(1): 215-228.
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URL: http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2024.00156
Fig.1 Schematic diagram of plant model parameters and boundary conditions of computational domain (A), and numerical simulation scheme for FSI using a cylinder array as the plant (B)
Fig.3 Transient velocity variation curves within the canopy layer over time, with numerical calculation results incorporating flexible plant sway compared to previous experimental data
工况 | 振幅A | 频率f | 位移L |
---|---|---|---|
工况1 | 2 | 0.1 | 2 |
工况2 | 2 | 0.5 | 2 |
工况3 | 2 | 2 | 2 |
工况4 | 0.5 | 0.1 | 0.5 |
工况5 | 0.25 | 0.1 | 0.75 |
Table 1 Parameters for the simulation of dynamic resistance coefficients under different operating conditions
工况 | 振幅A | 频率f | 位移L |
---|---|---|---|
工况1 | 2 | 0.1 | 2 |
工况2 | 2 | 0.5 | 2 |
工况3 | 2 | 2 | 2 |
工况4 | 0.5 | 0.1 | 0.5 |
工况5 | 0.25 | 0.1 | 0.75 |
Fig.10 Fluctuating velocity (A, dot solid lines for RMS values and dashed lines for turbulent kinetic energy), spectrogram of velocity energy density (B), transient velocity (C, D, solid lines for instantaneous and dashed lines for time-averaged velocity) in the front contact zone
Fig.11 Fluctuating velocity and turbulent kinetic energy (A), velocity energy density spectrum (B) and transient velocity curves (C, D) inside of canopy
Fig.12 Fluctuating velocity, mean turbulent kinetic energy (A), velocity power spectral density (B), and instantaneous flow velocity (C) in near wake region
Fig.13 Fluctuating velocity, mean turbulent kinetic energy (A), velocity power spectral density (B), and instantaneous flow velocity (C) in far wake region
Fig.15 Wind profiles at different streamwise locations, and the differences in wind profile between rigid porous plant models and flexible plant models
Fig.17 Variation of average wall shear stress along the flow direction (A), and variation curves of transient wall shear stress along the flow direction (B)
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