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convection of hot gas flow past the surface of the body and catalytic chemical recombination reactions between the surface and atmospheric gases; and; radiation from the energetic shock layer that forms in the front and sides of the body [15] As velocity increases, both convective and radiative heating increase, but at different rates.
When the convection is strong linear or curved, the MCS is called a squall line, with the feature placed at the leading edge of the significant wind shift and pressure rise. [2] This feature is commonly depicted in the warm season across the United States on surface analyses, as they lie within sharp surface troughs.
Convection section. The convection section is located above the radiant section where it is cooler to recover additional heat. Heat transfer takes place by convection here, and the tubes are finned to increase heat transfer. The first three tube rows in the bottom of the convection section and at the top of the radiant section is an area of ...
Natural convection is a flow whose motion is caused by some parts of a fluid being heavier than other parts. In most cases this leads to natural circulation : the ability of a fluid in a system to circulate continuously under gravity, with transfer of heat energy.
This leads to extremely deep drawn parts (can be >300mm), sharp radii (r/t of 0.8 of has been demonstrated) and high levels of part integration versus cold formed pressings. In addition, HFQ enables the manufacture of parts from high and ultra-high strength aluminium, which for strength dominant applications facilitates significant weight ...
Some tropical or subtropical regions such as the Philippines or South China are greatly affected by convection cells along a trough. In the mid-latitude westerlies, upper level troughs and ridges often alternate in a high-amplitude pattern. For a trough in the westerlies, the region just west of the trough axis is typically an area of ...
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Natural convection may be slower than using a solar-powered fan. Sharp 90-degree angles should be avoided in the construction of the tube – two 45-degree bends produce less-turbulent, more efficient air flow. While smooth-wall tubes are more efficient in moving the air, they are less efficient in transferring energy.
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