Showing 521 - 540 results of 610 for search '"convection"', query time: 0.05s Refine Results
  1. 521

    The Chemistry of Mercury in the Stratosphere by Alfonso Saiz‐Lopez, A. Ulises Acuña, Anoop S. Mahajan, Juan Z. Dávalos, Wuhu Feng, Daniel Roca‐Sanjuán, Javier Carmona‐García, Carlos A. Cuevas, Douglas E. Kinnison, Juan Carlos Gómez Martín, Joseph S. Francisco, John M. C. Plane

    Published 2022-06-01
    “…Abstract Mercury, a global contaminant, enters the stratosphere through convective uplift, but its chemical cycling in the stratosphere is unknown. …”
    Get full text
    Article
  2. 522

    Identifying mechanisms of tropical cyclone generated orographic precipitation with Doppler radar and rain gauge observations by Lin-Wen Cheng, Cheng-Ku Yu, Syuan-Ping Chen

    Published 2025-01-01
    “…Smaller-scale, landfalling convective elements embedded within TC background precipitation and their interactions with DT also influenced the degree of orographic enhancement of precipitation. …”
    Get full text
    Article
  3. 523

    Heat and Helium-3 Fluxes from Teide Volcano, Canary Islands, Spain by Mar Alonso, Eleazar Padrón, Hirochika Sumino, Pedro A. Hernández, Gladys V. Melián, María Asensio-Ramos, Fátima Rodríguez, Germán Padilla, Marta García-Merino, Cecilia Amonte, Nemesio M. Pérez

    Published 2019-01-01
    “…The thermal energy released from Teide summit cone by diffuse degassing was 2.2 MW, and the heat flux calculated through Dawson’s method was 8.1 MW, difference due to the comparison of purely convective areas as the crater with diffusive areas as the flanks of the volcano. …”
    Get full text
    Article
  4. 524

    Kinetics and Thermodynamics of Oil Extraction from Jatropha curcas L. Using Ethanol as a Solvent by Silmara Bispo dos Santos, Marcio Arêdes Martins, Ana Lívia Caneschi, Paulo Rafael Morette Aguilar, Jane Sélia dos Reis Coimbra

    Published 2015-01-01
    “…These parameters significantly influenced (95% confidence) the extracted oil yield. A convective mass transfer model was used to simulate the extraction process and estimate the kinetic and thermodynamic parameters. …”
    Get full text
    Article
  5. 525

    A Review of Ethnomedicinal Plants as Potential Anthelmintic Agents to Alternatively Control Gastrointestinal Nematodes of Ruminants in South Africa by Lindokuhle Christopher Mhlongo, Cresswell Mseleku, Thando Tenza, Sylvester Werekeh Fomum, Lyndy Joy McGaw, Abubeker Hassen, Ignatius Verla Nsahlai

    Published 2024-01-01
    “…It also examined the usage of plants and plant parts, dosage forms, methods for improving bioactivity, convectional validation procedures, and restrictions on ethnomedicinal plant use as anthelmintics in ethnomedicine. …”
    Get full text
    Article
  6. 526
  7. 527

    Numerical Simulation of Density Current Evolution in a Diverging Channel by Mitra Javan, Afshin Eghbalzadeh, Masoud Montazeri Namin

    Published 2012-01-01
    “…This study seeks to explore the ability of 2D width-averaged unsteady Reynolds-averaged Navier-Stokes (RANS) simulation approach for resolving density currents in an inclined diverging channel. 2D width-averaged unsteady RANS equations closed by a buoyancy-modified 𝑘−𝜀 turbulence model are integrated in time with a second-order fractional step approach coupled with a direct implicit method and discretized in space on a staggered mesh using a second-order accurate finite volume approach incorporating a high-resolution semi-Lagrangian technique for the convective terms. A series of 2D width-averaged unsteady simulations is carried out for density currents. …”
    Get full text
    Article
  8. 528

    Hybrid Models for Weather Parameter Forecasting by Rashmi Bhardwaj, Varsha Duhoon

    Published 2021-01-01
    “…In this paper, conjunction models over the convectional models are designed for forecasting the weather parameters for the reduction of error. …”
    Get full text
    Article
  9. 529

    Dynamical imprints on precipitation cluster statistics across a hierarchy of high-resolution simulations by C. C. Stephan, B. Stevens

    Published 2025-01-01
    “…We analyze global simulations at 10 km horizontal resolution that are configured to have drastically varying degrees of realism, ranging from global radiative–convective equilibrium to fully realistic atmospheric simulations, to investigate how dynamics influence precipitation statistics. …”
    Get full text
    Article
  10. 530

    Eddy Heat Conduction and Nonlinear Stability of a Darcy Lapwood System Analysed by the Finite Spectral Method by Jónas Elíasson

    Published 2014-01-01
    “…A finite Fourier transform is used to perform both linear and nonlinear stability analyses of a Darcy-Lapwood system of convective rolls. The method shows how many modes are unstable, the wave number instability band within each mode, the maximum growth rate (most critical) wave numbers on each mode, and the nonlinear growth rates for each amplitude as a function of the porous Rayleigh number. …”
    Get full text
    Article
  11. 531

    Thermal and mass diffusion in chemically reactive, radiative hybrid nanofluid (Cu and TiO2) flow over a rotating disk by Raja Ram Meena, Pooja Sharma

    Published 2025-03-01
    “…The current research work is focused on thermal and mass transfer analysis on a hybrid nanofluid (water as a base fluid,) flow over a rotating disk with free convective, viscous dissipation, MHD, and radiation effects. …”
    Get full text
    Article
  12. 532

    Analytical Investigation of Laminar Viscoelastic Fluid Flow over a Wedge in the Presence of Buoyancy Force Effects by B. Rostami, M. M. Rashidi, P. Rostami, E. Momoniat, N. Freidoonimehr

    Published 2014-01-01
    “…An analytical strong method, the homotopy analysis method (HAM), is employed to study the mixed convective heat transfer in an incompressible steady two-dimensional viscoelastic fluid flow over a wedge in the presence of buoyancy effects. …”
    Get full text
    Article
  13. 533

    Simulation Analysis of Air Flow and Turbulence Statistics in a Rib Grit Roughened Duct by I. I. Vogiatzis, A. C. Denizopoulou, G. K. Ntinas, V. P. Fragos

    Published 2014-01-01
    “…Different geometries of roughness elements investigated have demonstrated the pivotal role that vortices and associated turbulence have on the heat transfer characteristics of solar air heater ducts by increasing the convective heat transfer coefficient. In this paper we investigate the two-dimensional, turbulent, unsteady flow around rectangular ribs of variable aspect ratios by directly solving the transient Navier-Stokes and continuity equations using the finite elements method. …”
    Get full text
    Article
  14. 534

    Decadal Variation in Raindrop Size Distributions in Busan, Korea by Cheol-Hwan You, Dong-In Lee

    Published 2015-01-01
    “…Annual rainfall amount was higher in 2012 than in 2002, as were the annually averaged Dm (which was 0.1 mm greater in 2012) and the frequency of convective rain. Severe rainfall (greater than 20 mm h−1) occurred more frequently and with a larger Dm in 2012. …”
    Get full text
    Article
  15. 535

    Squeeze Film Dampers Executing Small Amplitude Circular-Centered Orbits in High-Speed Turbomachinery by Sina Hamzehlouia, Kamran Behdinan

    Published 2016-01-01
    “…The proposed pressure distribution model only accounts for unsteady (temporal) inertia terms, since based on order of magnitude analysis, for small amplitude motions of the journal center, the effect of convective inertia is negligible relative to unsteady (temporal) inertia. …”
    Get full text
    Article
  16. 536

    Atmospheric Contributors to Heavy Rainfall Events in the Arkansas-Red River Basin by Taylor A. McCorkle, Skylar S. Williams, Timothy A. Pfeiffer, Jeffrey B. Basara

    Published 2016-01-01
    “…The most profound results were that the magnitudes of the thermodynamic variables such as convective available potential energy and precipitable water values were poor predictors of the amount of rainfall produced in these extreme events. …”
    Get full text
    Article
  17. 537

    Vortex generators in heat sinks: Design, optimisation, applications and future trends by Mohammad Ismail, Abdullah Masoud Ali, Sol-Carolina Costa Pereira

    Published 2025-03-01
    “…This paper aims to discuss the various types of vortex generators, specifically delta winglet, rectangular winglet, trapezoidal and perforated, as well as their impact on improving convective heat transfer. This study focuses on the configurations that define geometric parameters, including the angle of attack, height and spacing in relation to the improvement in thermal or hydraulic performance. …”
    Get full text
    Article
  18. 538

    A Three-Dimensional Model of Turbulent Core Annular Flow Regime by Saliha Nouri, Zouhaier Hafsia, Salah Mahmoud Boulaaras, Ali Allahem, Salem Alkhalaf, Baowei Feng

    Published 2021-01-01
    “…The proposed model is based on the 3D Reynolds average Navier–Stokes (RANS) equations combined with a pure convective transport equation of the volume of fluid (VOF) to predict the interface between the oil and water phases. …”
    Get full text
    Article
  19. 539

    Impact of stellar variability on exoplanet detectability and characterisation by Meunier, Nadège

    Published 2023-03-01
    “…Many physical processes indeed affect the radial velocity measurements: they are mostly due to magnetic features (spots and plages), flows (oscillations, granulation, supergranulation, meridional flows), and to the interactions between magnetic fields and flows (inhibition of the convective blueshift in plages). I present in more detail a selection of studies aiming at characterising the impact of stellar variability, in particular the relationship between activity indicators and radial velocities, and then focusing on mass characterisation and detection performance. …”
    Get full text
    Article
  20. 540

    Measuring mean radiant temperature for indoor comfort assessment using low-resolution optical sensors by Fatih Evren, Sayan Biswas, Richard Graves

    Published 2025-01-01
    “…The human body is sensitive to both convective and radiative thermal effects. Mean radiant temperature represents the comprehensive radiant thermal impact individuals perceive in their surroundings. …”
    Get full text
    Article