Results 81 to 90 of about 14,104 (341)
Deep Underground Science and Engineering, EarlyView.Fluid flow through a single fracture is commonly described by the cubic law. However, deviations from this model are expected because natural fracture surfaces are rough and in contact with each other in discrete regions. In this study, the interactions between fracture closure, contact area, and hydraulic characterization of mesoscopic‐scale rough ...
Chenghao Han +5 more
wiley +1 more source
A 2D Image-Based Approach for CFD Validation of Liquid Mixing in a Free-Surface Condition
Journal of Applied Fluid Mechanics, 2020 This study proposes an image-based approach to evaluate the validity of numerical results for cases where the setup can be assumed to be two-dimensional (2D) and mixing between liquids of different densities occurs under a free-surface condition.
P. E. Rodríguez-Ocampo +6 more
doaj
Journal of Marine Science and Engineering, 2019 The evaluation of the wave-induced seabed response around a buried pipeline has been widely studied. However, the analysis of seabed response around marine structures under the wave and current loadings are still limited.
Cynthia Su Xin Foo +2 more
doaj +1 more source
Multigrid acceleration and turbulence models for computations of 3D turbulent jets in crossflow [PDF]
A multigrid method is presented for the calculation of three-dimensional turbulent jets in crossflow. Turbulence closure is achieved with either the standard k-epsilon model or a Reynolds Stress Model (RSM).
Demuren, A. O.
core +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Biomimetic ordered nano‐helix WO3 films enable multi‐band electrochromic photothermal management across the visible, near‐infrared, mid‐ and long‐wave infrared spectra, with ultrafast switching (<3 s) and robust durability (>10 000 cycles). These findings establish new paradigms for next‐generation photothermal management systems and energy‐efficient ...
Pan Li +9 more
wiley +1 more source
Assessment of Effect of Flux Scheme and Turbulence Model on Blade-to-blade Calculations [PDF]
Journal of Applied Fluid MechanicsToday, due to advances in computing power, Reynolds Averaged Navier-Stokes (RANS) solvers are widely preferred for quasi-three-dimensional (Q3D) blade-to-blade analysis.
M. Bilgiç, Ö. U. Baran, M. H. Aksel
doaj +1 more source
Energy Science &Engineering, EarlyView.Based on entropy theory, this study presents a comparative numerical analysis of the flow energy dissipation (FED) in a VTSP under two distinct operating conditions: pump condition and turbine condition, both characterized by relatively high hydraulic efficiencies of 88.9% and 87.4%, respectively. In pump condition, the highest FED production occurs in
S. Liu +5 more
wiley +1 more source
Oil & Gas Science and Technology, 2006 Thermal cracking of hydrocarbons has gone through a significant evolution over the past 20 years. Improved metallurgical properties together with a better understanding of the chemical aspects have led to new configurations for furnace and reactor, all ...
Detemmerman T., Froment G. F.
doaj +1 more source
Modeling of near-wall turbulence [PDF]
An improved k-epsilon model and a second order closure model is presented for low Reynolds number turbulence near a wall. For the k-epsilon model, a modified form of the eddy viscosity having correct asymptotic near wall behavior is suggested, and a ...
Mansour, N. N., Shih, T. H.
core +1 more source
Estimation of the GCV of Coal Using Real‐Time Plant Data
Energy Science &Engineering, EarlyView.ABSTRACT Online or real‐time strategies of estimating the gross calorific value (GCV) of coal are still not fully explored in academic literature, even though both conventional and sophisticated offline methods for estimating the GCV are well described.
Lethukuthula Nokwazi Vilakazi +1 more
wiley +1 more source