Results 61 to 70 of about 254,963 (201)
Journal of Marine Science and Engineering, 2023 Deep-sea hydrothermal circulation plays a pivotal role in the material and energy exchange in deep-sea environments, exerting significant influence on the evolution of seawater chemistry and global climate dynamics. Based on existing data and assumptions,
Haoyang Zeng +4 more
doaj +1 more source
Starting flow through nozzles with temporally variable exit diameter [PDF]
, 2005 Starting flow through a nozzle or orifice typically results in the transient formation of a leading vortex ring and trailing jet. Experiments are conducted to investigate the dynamics of this process in the case of a temporally variable nozzle exit ...
Dabiri, John O., Gharib, Morteza
core
Numerical experiments on vortex ring formation [PDF]
, 2001 Numerical simulations are used to study the formation of vortex rings that are generated by applying a non-conservative force of long duration, simulating experimental vortex ring generation with large stroke ratio. For sufficiently long-duration forces,
Colonius, Tim +2 more
core +2 more sources
Design optimization of a coal seam annular air reverse circulation bit
Energy Science & Engineering, 2023 Reverse circulation (RC) drilling technology enables the rapid acquisition of coal seam samples, which is crucial in accurately measuring gas content. In addition, the design of the drill bit plays a key role in RC sampling. In this study, the turbulence
Demin Chen +3 more
doaj +1 more source
Planktonic communities and chaotic advection in dynamical models of Langmuir circulation [PDF]
, 1998 A deterministic mechanism for the production of plankton patches within a typical medium scale oceanic structure is proposed and investigated. By direct numerical simulation of a simple model of Langmuir circulation we quantify the effects of unsteady ...
Bees, M.A.
core +1 more source
Study on the internal two-phase flow of the inverted-umbrella aerator
Advances in Mechanical Engineering, 2019 In order to reveal the gas–liquid two-phase flow pattern of inverted-umbrella aerator, the high-speed photography technology, particle image velocimetry, and Volume of Fluid model are employed to capture the free-surface dynamics and velocity ...
Liang Dong +4 more
doaj +1 more source
Fluid dynamic regimes in circulating fluidized bed boilers—A mini-review
Chemical Engineering Science, 2022 Abstract The fluid dynamics in the furnaces of large-scale circulating fluidized bed (CFB) boilers are surprisingly little known in contrast to the many laboratory studies made on conditions related to chemical reactors. Two areas are surveyed in the present work: the bottom bed and the upper dilute zone of a furnace.
openaire +1 more source
Cerebrospinal fluid dynamics and intracranial pressure elevation in neurological diseases
Fluids and Barriers of the CNS, 2019 The fine balance between the secretion, composition, volume and turnover of cerebrospinal fluid (CSF) is strictly regulated. However, during certain neurological diseases, this balance can be disrupted.
Steven William Bothwell +2 more
doaj +1 more source
Frontiers in Pediatrics, 2013 First stage palliation of hypoplastic left heart syndrome (HLHS), i.e. the Norwood operation, results in a complex physiological arrangement, involving different shunting options (modified Blalock-Taussig, RV-PA conduit, central shunt from the ascending ...
Giovanni eBiglino +8 more
doaj +1 more source
ASAIO Journal, 2020 Extracorporeal membrane oxygenation (ECMO) is increasingly deployed to provide percutaneous mechanical circulatory support despite incomplete understanding of its complex interactions with the failing heart and its effects on hemodynamics and perfusion.
Farhad Rikhtegar Nezami +3 more
openaire +3 more sources