DSpace at UH: Recent submissions
Now showing items 1-20 of 3967
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You may also like: Machine-learning algorithms for collection recommendations
(2019)Traditional collection development relies heavily on human input, with librarians relying on reviews and subject selection lists, and through user requests. With the development of machine learning, more and more businesses ... -
Transform research and instruction support through social media analysis and data visualization.
(2017)This presentation showcases how social media analysis and data visualization can transform research and instruction support, from solely providing access to data, to actively engaging users with data. Participants will ... -
Mapping the undergraduate curriculum for information literacy outreach and instruction in communication
(2015)This session demonstrates a methodology to help librarians identify targets for information literacy outreach. We want to target high impact courses with information literacy requirements that are taken by a large number ... -
Analyzing monograph usage of approval and firm orders for collection development
(2015)The poster describes a collection assessment project that compares the use of monographs purchased on an approval plan with those acquired via subject librarians’ selections. The goal is to reveal the usage trends between ... -
Controlling turbulent drag across electrolytes using electric fields
(Faraday Discussions, 2017-01)Reversible in operando control of friction is an unsolved challenge that is crucial to industrial tribology. Recent studies show that at low sliding velocities, this control can be achieved by applying an electric field ... -
A parallel interaction potential approach coupled with the immersed boundary method for fully resolved simulations of deformable interfaces and membranes
(Journal of Computational Physics, 2016-12)In this paper we show and discuss how the deformation dynamics of closed liquid–liquid interfaces (for example drops and bubbles) can be replicated with use of a phenomenological interaction potential model. This new ... -
Statistics of turbulence in the energy-containing range of Taylor–Couette compared to canonical wall-bounded flows
(Journal of Fluid Mechanics, 2017-08)Considering structure functions of the streamwise velocity component in a framework akin to the extended self-similarity hypothesis (ESS), de Silva et al. (J. Fluid Mech., vol. 823, 2017, pp. 498–510) observed that remarkably ... -
Mixed thermal conditions in convection: how do continents affect the mantle’s circulation?
(Journal of Fluid Mechanics, 2017-07)Natural convection is omnipresent on Earth. A basic and well-studied model for it is Rayleigh–Bénard convection, the fluid flow in a layer heated from below and cooled from above. Most explorations of Rayleigh–Bénard ... -
Life stages of wall-bounded decay of Taylor-Couette turbulence
(Physical Review Fluids, 2017-11)The decay of Taylor-Couette turbulence, i.e., the flow between two coaxial and independently rotating cylinders, is numerically studied by instantaneously stopping the forcing from an initially statistically stationary ... -
Mixed insulating and conducting thermal boundary conditions in Rayleigh–Bénard convection
(Journal of Fluid Mechanics, 2017-11)A series of direct numerical simulations of Rayleigh–Bénard convection, the flow in a fluid layer heated from below and cooled from above, were conducted to investigate the effect of mixed insulating and conducting boundary ... -
Physical and geometric constraints explain the labyrinth-like shape of the nasal cavity
(Proceedings of the National Academy of Sciences of the United States of America, 2017-08)The nasal cavity is a vital component of the respiratory system that heats and humidifies inhaled air in all vertebrates. Despite this common function, the shapes of nasal cavities vary widely across animals. To understand ... -
Optimal Taylor–Couette flow: direct numerical simulations
(Journal of Fluid Mechanics, 2012-10)We numerically simulate turbulent Taylor–Couette flow for independently rotating inner and outer cylinders, focusing on the analogy with turbulent Rayleigh–Bénard flow. Reynolds numbers of Rei= 8 x 10^3 and Reo=+/-4 x 10^3 ... -
Boundary layer dynamics at the transition between the classical and the ultimate regime of Taylor-Couette flow
(Physics of Fluids, 2014)Direct numerical simulations of turbulent Taylor-Couette flow are performed up to inner cylinder Reynolds numbers of Rei = 105 for a radius ratio of ? = ri/ro = 0.714 between the inner and outer cylinders. With increasing ... -
Effect of velocity boundary conditions on the heat transfer and flow topology in two-dimensional Rayleigh-Bénard convection
(Physical Review E, 2014-07)The effect of various velocity boundary condition is studied in two-dimensional Rayleigh-Bénard convection. Combinations of no-slip, stress-free, and periodic boundary conditions are used on both the sidewalls and the ... -
Optimal Taylor–Couette flow: radius ratio dependence
(Journal of Fluid Mechanics, 2013-10)Taylor–Couette flow with independently rotating inner ( i ) and outer ( o ) cylinders is explored numerically and experimentally to determine the effects of the radius ratio on the system response. Numerical simulations ... -
Turbulence decay towards the linearly stable regime of Taylor–Couette flow
(Journal of Fluid Mechanics, 2013-11)Taylor–Couette (TC) flow is used to probe the hydrodynamical (HD) stability of astrophysical accretion disks. Experimental data on the subcritical stability of TC flow are in conflict about the existence of turbulence (cf. ... -
Exploring the phase diagram of fully turbulent Taylor–Couette flow
(Journal of Fluid Mechanics, 2014-10)Direct numerical simulations of Taylor–Couette flow, i.e. the flow between two coaxial and independently rotating cylinders, were performed. Shear Reynolds numbers of up to 3 × 10^5, corresponding to Taylor numbers of Ta ... -
Inertial waves and mean velocity profiles in a rotating pipe and a circular annulus with axial flow
(Physical Review E, 2015-01)In this paper we solve the inviscid inertial wave solutions in a circular pipe or annulus rotating constantly about its axis with moderate angular speed. The solutions are constructed by the so-called helical wave functions. ... -
Effects of the computational domain size on DNS of Taylor-Couette turbulence with stationary outer cylinder
(Physics of Fluids, 2015)In search for the cheapest but still reliable numerical simulation, a systematic study on the effect of the computational domain (“box”) size on direct numerical simulations of Taylor-Couette flow was performed. Four boxes ... -
Salinity transfer in bounded double diffusive convection
(Journal of Fluid Mechanics, 2015-03)The double diffusive convection between two parallel plates is numerically studied for a series of parameters. The flow is driven by the salinity difference and stabilised by the thermal field. Our simulations are directly ...