Deng Xianhe and Deng Songjiu(Research Institute of Chemical Engineering, South China Institute of Technology). An Approximate Analytical Solution for the Nusselt Number Expression in Turbulent Pipe Flow with Constant Physical Properties[J]. CIESC Journal, 1987, (4).
Deng Xianhe and Deng Songjiu(Research Institute of Chemical Engineering, South China Institute of Technology). An Approximate Analytical Solution for the Nusselt Number Expression in Turbulent Pipe Flow with Constant Physical Properties[J]. CIESC Journal, 1987, (4).DOI:
The analytical expression of NusseJt Number is obtained by direct integration of the differential equations of momentum
energy and mass in circular tubes
with the application of equations of eddy viscosity e0/v and the ratio of the eddy diffusivities mn = αt/∈α
which were published in recent-years. Petukhovs Nusselt number expressions have been compared with the Nusselt number expression derived. The maximal deviation is found to be less than 7%. This Nusselt number expression can also apply to metal liquids with very low Pr number.