Article
Chemistry, Analytical
Bowen Li, Xuejun Xiong, Baichuan Duan, Daolong Wang, Long Yu
Summary: The study of sediment exchange between the North and South Yellow Sea is crucial for understanding the Yellow Sea environment. In this study, the current field and sediment concentration in the southern part of Chengshantou were observed in winter, revealing a complex relationship between current velocity and water depth, as well as the impact of wind direction and ocean current on sediment transport.
Article
Multidisciplinary Sciences
Sojiro Fukuda, Marijke G. W. de Vet, Edward W. G. Skevington, Elena Bastianon, Roberto Fernandez, Xuxu Wu, William D. McCaffrey, Hajime Naruse, Daniel R. Parsons, Robert M. Dorrell
Summary: Gravity currents, such as sediment-laden turbidity currents, are natural flows that are driven by a density difference. Material transport in gravity currents is fundamentally different from fluvial systems, and the current understanding is insufficient. Research shows that buoyancy production in gravity currents has a non-linear dependence on available flow power, indicating an underestimation of total kinetic energy lost.
NATURE COMMUNICATIONS
(2023)
Article
Geosciences, Multidisciplinary
Rui Wang, Peng Li, Zhanbin Li, Jianchun Han, Yubin Zhu
Summary: The study found that turbulent energy increased with the increasing inlet unit width flow rate. The sediment deposition at the bottom of the stilling basin gradually increased with the decrease of inlet unit width flow and the decrease of sediment mass flow rate. The average deposition rate at the bottom of the stilling basin was positively correlated with the inlet sedimentation concentration, with a correlation coefficient as high as 0.97.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Environmental Sciences
Arman Haddadchi, Murray Hicks
Summary: The study analyzed the hysteresis relationship between suspended sediment concentration and flow during runoff events in 17 catchments in New Zealand. Results showed differences between pasture- and forest-dominated catchments, with sediment peaks lagging flow peaks in pasture areas and vice versa in forest areas. Flood total runoff and duration were identified as key variables controlling the hysteresis patterns in each catchment. These findings have immediate implications for river management programs and the development of suspended sediment routing models. Future research could focus on reducing ambiguity in interpreting hysteresis factors using larger datasets and high-resolution sediment tracing.
JOURNAL OF SOILS AND SEDIMENTS
(2021)
Article
Engineering, Civil
Ehsan Hendi, Asaad Y. Shamseldin, Bruce W. Melville
Summary: This study evaluates the effects of different inlet width ratios on the flow pattern and residence time in a sediment retention pond when the inflow is either colder or hotter than the water in the pond. The results indicate that adjusting the inlet width appropriately can effectively improve the performance of the pond under different temperature differentials.
JOURNAL OF HYDROLOGY
(2022)
Article
Chemistry, Multidisciplinary
Laszlo Vas, Eniko Anna Tamas
Summary: The study aims to find an effective method for monitoring suspended sediment transport in rivers. The currently used methods are not accurate enough, so the researchers tested an integrated surrogate method based on turbidity registration to determine the suspended sediment yield in the lower reach of the Danube River. The results of the tests show that the method has great potential, but further measurements are needed to refine the relationships.
APPLIED SCIENCES-BASEL
(2023)
Article
Environmental Sciences
D. N. Livsey, R. D. R. Turner, P. R. Grace
Summary: Optical and acoustic backscatter measurements are combined to quantify suspended-sediment concentration and particle size in suspensions dominated by muddy flocculated sediment. The sediment composition index (SCI) is used to predict the ratio of suspended-sediment concentration to acoustic backscatter under changes in particle size and density, and to estimate suspended-sediment concentration that is independent of changes in particle size and density. The SCI is found to be sensitive to changes in particle size and the estimates of particle bulk apparent density from SCI are biased by changes in particle size.
WATER RESOURCES RESEARCH
(2023)
Article
Geosciences, Multidisciplinary
Dhruv Sehgal, Nuria Martinez-Carreras, Christophe Hissler, Victor F. Bense, Antonius Johannes Fransiscus (Ton) Hoitink
Summary: Optical turbidity sensors are commonly used to estimate suspended particulate matter concentration (SPMC), but the readings are influenced by factors other than SPMC. Therefore, local calibrations are needed to convert turbidity to SPMC. This study proposes a new relation between turbidity, SPM carbon content, and particle size to establish generic calibrations based on inherent SPM properties.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2022)
Article
Multidisciplinary Sciences
Md Jahangir Alam, Kazuma Date, Hisayuki Arakawa
Summary: The decrease in wild population of pelagic shrimp Lucensosergia lucens in Suruga Bay, Japan, may be attributed to the increase in concentration of suspended particles. The study found that kaolinite particles negatively affect the hatching ratio of fertilized eggs, as well as the survival, growth, and metamorphosis of nauplius and elaphocaris larvae.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Civil
Le Cao, Shuang Liu, Shijie Wang, Qianyun Cheng, Alan E. Fryar, Lin Zhang, Zhicai Zhang, Fujun Yue, Tao Peng
Summary: Assessment of river sediment in karst regions is crucial for soil erosion management, with factors like rainfall and geomorphology determining sediment availability. Analysis of hysteresis patterns can provide valuable insights for conservation decision-making in karst areas.
JOURNAL OF HYDROLOGY
(2021)
Article
Engineering, Civil
Sara Baghalian, Masoud Ghodsian
Summary: In laboratory experiments, the behavior of turbidity current under subcritical flow conditions was studied, focusing on the effects of solid obstacles and bed roughness. The experiments showed that an obstacle height 2-3 times the body height can control most of turbidity current on a rough bed. The growth of front height is influenced by sediment concentration, roughness elements, and obstacle height, while the simultaneous use of bed roughness and obstacle significantly reduces front velocity downstream.
JOURNAL OF HYDRO-ENVIRONMENT RESEARCH
(2022)
Article
Oceanography
S. E. Jackson, D. G. Bowers, M. Harris
Summary: Predicting net suspended sediment fluxes in coastal regions is crucial for water quality, maritime transport, and marine industries. However, the influence of aggregation and disaggregation of suspended particulate matter on net suspended sediment flux is poorly understood. This study focuses on the Menai Strait in North Wales, a tidal strait with strong currents, and finds that the flow direction and speed affect the size of suspended particles. Strong currents tear up flocs into small pieces, which are then transported towards both ends of the strait by tides. A net flux of larger particles into the central region and a net flux of small particles out occur over a tidal cycle. These findings have implications for the formation of isolated turbidity maxima in regions with strong turbulence.
CONTINENTAL SHELF RESEARCH
(2022)
Article
Environmental Sciences
Dongrui Han, Zhiguo He, Ying-Tien Lin, Yuhang Wang, Yakun Guo, Yeping Yuan
Summary: Systematic experiments were conducted to investigate the effects of rigid vegetation on sediment transport modes and current propagation patterns. Equations for predicting the front velocities of downslope turbidity currents with emergent vegetation were proposed and validated. The results showed that sediment deposition decreases the lower turbulent kinetic energy peaks of turbidity currents, while rigid vegetation has the opposite effect. Vegetation stems disrupt the near-bed quasi-streamwise eddies and increase the interactions, while sediment deposition suppresses turbulent bursting events. Emergent vegetation accelerates the formation of reflected bore, while dense submerged vegetation promotes the two-head propagating mode.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
Vando J. C. Gomes, Nils E. Asp, Eduardo Siegle, Jose Diego Gomes, Ariane M. M. Silva, Andrea S. Ogston, Charles A. Nittrouer
Summary: In tide-dominated estuaries along the Brazilian Amazon coast, the presence of maximum-turbidity zones plays a crucial role in sediment delivery to the longest continuous mangrove belt in the world. The dynamics of these estuaries are influenced by regional climate, tidal variations, distance from the Amazon River mouth, and the morphology of the estuarine setting. The study highlights the dependence of estuaries and mangrove belts on sediment supply from the Amazon River plume, providing insights into sediment transport processes under the influence of large rivers.
Article
Chemistry, Multidisciplinary
Woochul Kang, Kyungsu Lee, Seongyun Kim
Summary: A novel method for quantifying suspended sediment discharge in estuaries and coasts using underwater imaging was developed and experimentally verified. The relationship between turbidity and estimated suspended sediment concentration was derived and a multiple regression model for predicting sediment concentrations was proposed. The predictions from the regression model were better than those from the turbidity-concentration relationship.
APPLIED SCIENCES-BASEL
(2023)
Article
Thermodynamics
Maryam Moradpour, Hossein Afshin, Bijan Farhanieh
BUILDING SIMULATION
(2018)
Article
Engineering, Mechanical
G. H. Farrahi, M. Chamani, K. Reza Kashyzadeh, A. Mostafazade, A. H. Mahmoudi, H. Afshin
ENGINEERING FAILURE ANALYSIS
(2018)
Article
Thermodynamics
Moloud Sadat Salehi, Mohamad Taghi Esfidani, Hossein Afshin, Bahar Firoozabadi
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2018)
Article
Engineering, Civil
Ahmadreza Farizan, Sina Yaghoubi, Bahar Firoozabadi, Hossein Afshin
JOURNAL OF HYDRAULIC RESEARCH
(2019)
Article
Meteorology & Atmospheric Sciences
Nategheh Najafpour, Hossein Afshin, Bahar Firoozabadi
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2018)
Article
Engineering, Electrical & Electronic
Mohsen Karmozdi, Mohammad Behshad Shafii, Hossein Afshin
SENSORS AND ACTUATORS A-PHYSICAL
(2018)
Article
Engineering, Aerospace
Mohamad Abdolmaleki, Hossein Afshin, Bijan Farhanieh
Article
Thermodynamics
Mohammad Reza Oshaghi, Mona Shahsavari, Hossein Afshin, Bahar Firoozabadi
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2019)
Article
Thermodynamics
Mohamad Ali Bijarchi, Amirsaman Eghtesad, Hossein Afshin, Mohammad Behshad Shafii
APPLIED THERMAL ENGINEERING
(2019)
Article
Thermodynamics
Ali Mostafazade Abolmaali, Hossein Afshin
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2019)
Article
Thermodynamics
Morteza Ardeshir Larijani, Mohamad Bayat, Hossein Afshin
FLUID PHASE EQUILIBRIA
(2019)
Article
Mechanics
Mohammad Reza Oshaghi, Hossein Afshin, Bahar Firoozabadi
THEORETICAL AND COMPUTATIONAL FLUID DYNAMICS
(2019)
Article
Thermodynamics
Amirsaman Eghtesad, Mohammadamin Mahmoudabadbozchelou, Hossein Afshin
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2019)
Article
Thermodynamics
Hamidreza Savalanpour, Bijan Farhanieh, Hossein Afshin
HEAT TRANSFER-ASIAN RESEARCH
(2019)
Article
Engineering, Mechanical
Siavash Gohardehi, Saeed Arablu, Hossein Afshin, Bijan Farhanieh
MECHANICS & INDUSTRY
(2019)
