
Auroral streamers: characteristics of associated precipitation
... precipitation and its relationship to the field-aligned currents provides a way to test which mechanism (and in which conditions) could be responsible for the precipitation from the fast flow region. As already mentioned, the different types of transient localized auroral forms are observed in assoc ...
... precipitation and its relationship to the field-aligned currents provides a way to test which mechanism (and in which conditions) could be responsible for the precipitation from the fast flow region. As already mentioned, the different types of transient localized auroral forms are observed in assoc ...
Plasma Density Features Associated with Strong Convection in the
... Center for Atmospheric and Space Sciences, Utah State University, Logan, Utah 84322 We combined a simple plasma convection model with an ionospheric-atmospheric composition model in order to study the plasma density features associated with strong convection in the winter high-latitude F region. Our ...
... Center for Atmospheric and Space Sciences, Utah State University, Logan, Utah 84322 We combined a simple plasma convection model with an ionospheric-atmospheric composition model in order to study the plasma density features associated with strong convection in the winter high-latitude F region. Our ...
Spectroscopy – Lecture 1
... the spectral distribution of the emergent radiation by treating each wavelength separately using its own proper values of j and k.“ ...
... the spectral distribution of the emergent radiation by treating each wavelength separately using its own proper values of j and k.“ ...
Finite element analysis of natural convection flow in a isosceles
... the bottom wall (Fig. 3). The presence of significant convection is also exhibited in the temperature contours which get pushed towards the central portion of the bottom wall. The critical Rayleigh number (for this case: Ra ¼ 2 104 ) may be obtained from asymptotes of average Nusselt number vs Rayl ...
... the bottom wall (Fig. 3). The presence of significant convection is also exhibited in the temperature contours which get pushed towards the central portion of the bottom wall. The critical Rayleigh number (for this case: Ra ¼ 2 104 ) may be obtained from asymptotes of average Nusselt number vs Rayl ...
International - Ron Blank and Associates, Inc.
... thereby reducing the heating and cooling requirements. ...
... thereby reducing the heating and cooling requirements. ...
Calculation of heat loss for buildings
... of any intervening material to transmit or resist the radiation. Objects struck by sunlight absorb the short-wave radiation from the light and reradiate the heat at longer infrared wavelengths. Where there is a material or substance (such as glass) between the sun and the objects struck that is more ...
... of any intervening material to transmit or resist the radiation. Objects struck by sunlight absorb the short-wave radiation from the light and reradiate the heat at longer infrared wavelengths. Where there is a material or substance (such as glass) between the sun and the objects struck that is more ...
Applied Thermodynamics
... The principle of the conservation of energy states that energy can neither be created nor destroyed. If a system undergoes a process by heat and work transfer, then the net heat supplied, Q, plus the net work input, W, is equal to the change of intrinsic energy of the working fluid, i.e. ...
... The principle of the conservation of energy states that energy can neither be created nor destroyed. If a system undergoes a process by heat and work transfer, then the net heat supplied, Q, plus the net work input, W, is equal to the change of intrinsic energy of the working fluid, i.e. ...
Unsteady State Heat Transfer PDF
... The HT10XC is ideal for this remote operation as it has been designed to ensure that the unit shuts down safely in the event of a communications failure. It has also been designed so that once the heat transfer accessory has been installed and configured, all the controls to perform a series of inve ...
... The HT10XC is ideal for this remote operation as it has been designed to ensure that the unit shuts down safely in the event of a communications failure. It has also been designed so that once the heat transfer accessory has been installed and configured, all the controls to perform a series of inve ...
Energy Transfer Technologies Energy Transfer Technologies
... example, you might use a jar that can be shaken or stir the mixture in a larger container such as a pail. (c) How much will you agitate the laundry? Include instructions on: • how long the sample will be agitated, • whether it will be shaken or stirred, and • how vigorous the agitation will be. ...
... example, you might use a jar that can be shaken or stir the mixture in a larger container such as a pail. (c) How much will you agitate the laundry? Include instructions on: • how long the sample will be agitated, • whether it will be shaken or stirred, and • how vigorous the agitation will be. ...
EC05214ANotes-12
... Good conductors reflect electric and magnetic fields completely. A conductor consists of a large number of free electrons which constitute conduction current with the application of an electric field. 10. A conductor is an equipotential body. 11. The potential is same everywhere in the conductor. 12 ...
... Good conductors reflect electric and magnetic fields completely. A conductor consists of a large number of free electrons which constitute conduction current with the application of an electric field. 10. A conductor is an equipotential body. 11. The potential is same everywhere in the conductor. 12 ...
Convection

Convection is the concerted, collective movement of groups or aggregates of molecules within fluids (e.g., liquids, gases) and rheids, through advection or through diffusion or as a combination of both of them. Convection of mass cannot take place in solids, since neither bulk current flows nor significant diffusion can take place in solids. Diffusion of heat can take place in solids, but that is called heat conduction. Convection cannot be demonstrated by placing a heat source (e.g. a Bunsen burner) at the side of a glass full of a liquid, and observing the changes in temperature in the glass caused by the warmer ghost fluid moving into cooler areas.Convective heat transfer is one of the major types of heat transfer, and convection is also a major mode of mass transfer in fluids. Convective heat and mass transfer take place both by diffusion – the random Brownian motion of individual particles in the fluid – and by advection, in which matter or heat is transported by the larger-scale motion of currents in the fluid. In the context of heat and mass transfer, the term ""convection"" is used to refer to the sum of advective and diffusive transfer. In common use the term ""convection"" may refer loosely to heat transfer by convection, as opposed to mass transfer by convection, or the convection process in general. Sometimes ""convection"" is even used to refer specifically to ""free heat convection"" (natural heat convection) as opposed to forced heat convection. However, in mechanics the correct use of the word is the general sense, and different types of convection should be qualified for clarity.Convection can be qualified in terms of being natural, forced, gravitational, granular, or thermomagnetic. It may also be said to be due to combustion, capillary action, or Marangoni and Weissenberg effects. Heat transfer by natural convection plays a role in the structure of Earth's atmosphere, its oceans, and its mantle. Discrete convective cells in the atmosphere can be seen as clouds, with stronger convection resulting in thunderstorms. Natural convection also plays a role in stellar physics.