Πλοήγηση ανά Θέμα "HEAT-TRANSFER"
Αποτελέσματα 1-12 από 12
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Bubbles growing in supersaturated solutions at reduced gravity
(2004)This work investigates bubbles growing in a liquid saturated with a dissolved gas when its temperature is locally raised above its saturation value, yet below boiling. Local supersaturation is realized by giving heat pulses ... -
Convective and ventilation transfers in greenhouses, Part 1: the greenhouse considered as a perfectly stirred tank
(2002)In this paper, the characterization and modelling of the most relevant convective transfers contributing to the elaboration of the greenhouse climate are reviewed. Convective transfers include heat and mass transfers between ... -
A dissipative particle dynamics study of flow in periodically grooved nanochannels
(2012)The effect of periodic rectangular wall roughness on planar nanochannel flow is investigated by dissipative particle dynamics simulation. The wall protrusion length is varied, and its effect on the flow is examined. Analysis ... -
Energy analysis of an improved concept of integrated PV panels in an office building in central Greece
(2011)During the last decade, steel constructions with glazed facades became popular for commercial buildings in Greece. Moreover, expensive metal, natural stone, marble, ceramic, granite as well as special glass is employed for ... -
Extreme solitary waves on falling liquid films
(2014)Direct numerical simulation (DNS) of liquid film flow is used to compute fully developed solitary waves and to compare their characteristics with the predictions of low-dimensional models. Emphasis is placed on the regime ... -
Film cooling predictions of simple and compound angle injection from one and two staggered rows
(2001)Typical film-cooling configurations of flat plates from one and two staggered rows of simple and compound angle injection holes are investigated using a three-dimensional finite volume method and a multiblock technique, ... -
Laminar Free Convection in a Square Enclosure Driven by the Lorentz Force
(2010)A numerical study is presented of laminar free convection flow driven by magnetic forces. An external magnetic field with one spatially varying component is applied to an electrically conducting fluid in a square enclosure. ... -
Large eddy simulation of turbulent channel flow with transverse roughness elements on one wall
(2014)This study examines the feasibility of large eddy simulation for predicting turbulent channel flows with two-dimensional roughness elements of square, circular and triangular shapes transversely placed on the bottom wall. ... -
Non-isothermal bubble rise: non-monotonic dependence of surface tension on temperature
(2015)We study the motion of a bubble driven by buoyancy and thermocapillarity in a tube with a non-uniformly heated walls, containing a so-called 'self-rewetting fluid'; the surface tension of the latter exhibits a parabolic ... -
Numerical simulation of thermal behavior of a ventilated arc greenhouse during a solar day
(2010)In the present study the transport phenomena occurring inside a ventilated arc type tunnel greenhouse are simulated during a solar day taking into account the optical properties of plants only in the photosynthetic active ... -
Simulation of coal combustion in a bubbling fluidized bed by distinct element method
(2003)T he distinct element method (DEM) is used to model combustion of coal particles in a bubbling fluidized bed. The gas phase is modeled as a continuum and the particle phase is modeled by DEM. The chemical reactions consist ... -
Thermocapillary-Driven Motion of a Sessile Drop: Effect of Non-Monotonic Dependence of Surface Tension on Temperature
(2014)We study the thermocapillary-driven spreading of a droplet on a nonuniformly heated substrate for fluids associated with a non-monotonic dependence of the surface tension on temperature. We use lubrication theory to derive ...