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The fluid temperature (Tb), referred to as the
bulk temperature, varies according to the details of the situation. For flow adjacent to a hot or cold surface, Tb is the temperature of the fluid that is "far" from the surface, for instance, the center of the flow channel. For boiling or condensation, Tb is equal to the saturation temperature.
Reference: DOE-HDBK-1012/1-92 JUNE 1992, THERMODYNAMICS, HEAT TRANSFER,
AND FLUID FLOW |
