Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Gerard Hamill"'
Publikováno v:
Water, Vol 14, Iss 7, p 1069 (2022)
This work used experimental and numerical methods to investigate seawater intrusion (SWI) in a complex heterogeneous laboratory-scale aquifer. We started the analysis with a homogeneous isotropic aquifer as a reference case, then moved to heterogeneo
Externí odkaz:
https://doaj.org/article/8ce5ed743df6418a905b11286b645b8f
Autor:
Yonggang Cui, Wei Haur Lam, How Tion Puay, Muhammad S. I. Ibrahim, Desmond Robinson, Gerard Hamill
Publikováno v:
Journal of Marine Science and Engineering, Vol 8, Iss 12, p 1025 (2020)
This study presents the decays of three components of velocity for a ship twin-propeller jet associated with turbulence intensities using the Acoustic Doppler Velocimetry (ADV) measurement and computational fluid dynamics (CFD) methods. Previous rese
Externí odkaz:
https://doaj.org/article/10c33d416b15438eb619370219e03a11
Autor:
Yonggang Cui, Wei Haur Lam, Zhi Chao Ong, Lloyd Ling, Chee Loon Siow, Desmond Robinson, Gerard Hamill
Publikováno v:
Journal of Marine Science and Engineering, Vol 8, Iss 11, p 872 (2020)
Experiments were conducted to investigate the seabed scour holes due to the interaction between the twin-propeller jet and quay wall. Vertical quay wall was modelled by using a polyvinyl chloride (PVC) plastic plate in a water tank. The relationship
Externí odkaz:
https://doaj.org/article/4a59620be7f44893878f7e3f741e174b
Publikováno v:
Journal of Marine Science and Engineering, Vol 7, Iss 10, p 342 (2019)
Scour induced by a Darrieus-type tidal current turbine was investigated by using a joint numerical and experimental method with emphasis on the scour process of a full-scale turbine. This work proposes a new numerical method to estimate turbine scour
Externí odkaz:
https://doaj.org/article/e94c2756a866483b941c2b61817afe54
Publikováno v:
Journal of Marine Science and Engineering, Vol 7, Iss 10, p 339 (2019)
This research paper proposes the use of empirical equations to estimate the temporal maximum scour that is induced by twin-propeller ( ε t w i n = Ω t [ l n ( t ) ] Γ t ) when acting over non-cohesive bed materials. A purpose built experimental ap
Externí odkaz:
https://doaj.org/article/1286d1a30399402fbeae6757f5435d2e
Autor:
Tianming Zhang, Wei Haur Lam, Yonggang Cui, Jinxin Jiang, Chong Sun, Jianhua Guo, Yanbo Ma, Shuguang Wang, Su Shiung Lam, Gerard Hamill
Publikováno v:
Energies, Vol 12, Iss 12, p 2450 (2019)
The scouring by a tidal turbine is investigated by using a joint theoretical and experimental approach in this work. The existence of a turbine obstructs a tidal flow to divert the flow passing through the narrow channel in between the blades and sea
Externí odkaz:
https://doaj.org/article/2b651652ef2040ff883402fee92f0b0a
Publikováno v:
Water, Vol 11, Iss 5, p 1097 (2019)
Single and twin ship propeller jets produce scour holes with deposition dune. The scour hole has a maximum depth at a particular length downstream within the propeller jet. Existing equations are available to predict maximum scour depth and the corre
Externí odkaz:
https://doaj.org/article/8e07fd00460e4fdf9d427ac890d6dbec
Publikováno v:
Water, Vol 11, Iss 5, p 896 (2019)
The temporal evolution of seabed scour was investigated to prevent damage around a monopile foundation for Darrieus-type tidal current turbine. Temporal scour depths and profiles at various turbine radius and tip clearances were studied by using the
Externí odkaz:
https://doaj.org/article/a4081cfa7fbe46fd93e9eac8099f3238
Automated vertical Self Potential gradient logging and analysis for the tracking of Saline Intrusion
Climate change associated sea level increases and projected growth in global water consumption of about 1% per year (WWAP, 2018) are expected to place further demands on already heavily utilized coastal groundwater supplies. Water stress is anticipat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ce94480ff11dc465def0a2feef4763f
https://doi.org/10.5194/egusphere-egu23-15408
https://doi.org/10.5194/egusphere-egu23-15408
Autor:
Adrian Butler, Thomas Rowan, Matthew Jackson, Mark McDonnell, Jesus Fernandez Aguila, Eric Benner, Raymond Flynn, Shane Donohue, Gerard Hamill
Greater groundwater abstraction combined with possible reductions in recharge rates are likely to be detrimental to the long-term viability of groundwater resources (Mehdizadeh, 2019). An additional issue specifically affecting coastal aquifers is sa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97ef94487ee2d2452ff97f78a3bd1deb
https://doi.org/10.5194/egusphere-egu22-12643
https://doi.org/10.5194/egusphere-egu22-12643