Effects of strong convection on the cooling process for a long or thin pipe (CROSBI ID 142662)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Marušić, Sanja ; Marušić-Paloka, Eduard ; Pažanin, Igor
engleski
Effects of strong convection on the cooling process for a long or thin pipe
In this Note a heat flow through a thin pipe filled with fluid is studied. The pipe is cooled by the exterior medium. Depending on the ratio between the pipe’ s thickness ε and the Reynolds number Reε , we obtain three different macroscopic models via rigorous asymptotic analysis. For small Reε the fluid in the pipe is perfectly cooled, i.e. it assumes the temperature of the surrounding medium. For large Reε , the fluid is not cooled at all, i.e. it maintains the same temperature as it had when it entered the pipe. Between those two cases there is a critical value of Reε when the macroscopic model is described by an ODE keeping the effects of the surrounding medium as well as the entering temperature.
Heat transfer ; Heat conduction ; Asymptotic analysis ; High convection
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Podaci o izdanju
336 (6)
2008.
493-499
objavljeno
1631-0721
1873-7234
10.1016/j.crme.2008.03.003