Which of the following forced convection heat transfer equation accounts for the liquid viscosity effect for viscous liquids ?
Correct answer: D. Sieder-Tate equation
- A. Dittus-Boelter equation
- B. None of these
- C. Nusselt equation
- D. Sieder-Tate equation
Explanation
The Sieder-Tate correlation includes a viscosity correction, commonly written as a ratio of bulk to wall viscosity, so it is suitable for viscous liquids. The Dittus-Boelter equation does not account adequately for this viscosity effect.
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