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2017 | OriginalPaper | Buchkapitel

Effect of Reynolds Number, Strouhal Number and Amplitude of Oscillation on Pulsating Flow Characteristics Through a Circular Pipe

verfasst von : Vedant U. Chavan, C. M. Sewatkar

Erschienen in: Fluid Mechanics and Fluid Power – Contemporary Research

Verlag: Springer India

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Abstract

The problem of pulsating flow through a circular pipe was analyzed numerically in the laminar flow region with the flow at the pipe inlet consisting of a fixed part and a pulsating component varying sinusoidally in time. The pipe wall was kept at an uniform temperature. The solution of two dimensional Navier-Stokes equations was obtained using Ansys Fluent software code and user defined function. The effect of Reynolds number, Strouhal number, and amplitude ratio is studied for 200 ≤ Re ≤ 2000, at 2 ≤ St ≤ 20 and 0.1 ≤ A/D ≤ 1. It is noticed that the large amplitude ratio combined with flow reversal occurring in a small zone near the wall promote augmentation of convective heat transfer. Small hike in Nusselt number is noticed with increase in Re and St; however, it changes substantially with hike in amplitude ratio.

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Metadaten
Titel
Effect of Reynolds Number, Strouhal Number and Amplitude of Oscillation on Pulsating Flow Characteristics Through a Circular Pipe
verfasst von
Vedant U. Chavan
C. M. Sewatkar
Copyright-Jahr
2017
Verlag
Springer India
DOI
https://doi.org/10.1007/978-81-322-2743-4_34

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