TURBULENT HEAT TRANSFER IN AN AXIALLY ROTATING PIPE AT HIGH ROTATION RATE: A NUMERICAL STUDY | Zendy

Obed Y.W. Abotsi | Zendy; John P. Kizito | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

TURBULENT HEAT TRANSFER IN AN AXIALLY ROTATING PIPE AT HIGH ROTATION RATE: A NUMERICAL STUDY

Author(s) -

Obed Y.W. Abotsi,

John P. Kizito

Publication year - 2020

Publication title -

frontiers in heat and mass transfer

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 18

ISSN - 2151-8629

DOI - 10.5098/hmt.14.24

Subject(s) - thermal fluids , turbulence , heat transfer , frontier , axial symmetry , mechanics , thermal , rotation (mathematics) , mechanical engineering , materials science , aerospace engineering , engineering , thermodynamics , physics , political science , computer science , heat transfer coefficient , law , structural engineering , artificial intelligence

In this paper, turbulent water flow and heat transfer are studied numerically in a pipe which is rotating about its longitudinal axis. Computations were conducted for axial Reynolds numbers ranging from 10000 to 30000 at different rotation rates. Rotation rate (N) is the ratio of the rotational Reynolds number to the axial Reynolds number. Predictions showed that the Nusselt number (Nu) of the stationary pipe (N=0) was augmented by 50-58% at N=5, 105-132% at N=10, 150-201% at N=15, 208-265% at N=20, and 320-373% at N=30. Improvements in the heat transfer rate was linked to the introduction of tangential velocity components from the moving pipe wall which created secondary flow.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research