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

被引：0
作者：
Chavan, Vedant U. [1 ]
Sewatkar, C. M. [1 ]
机构：
[1] Coll Engn, Dept Mech Engn, Pune, Maharashtra, India
来源：
FLUID MECHANICS AND FLUID POWER - CONTEMPORARY RESEARCH | 2017年
关键词：
Pulsating flow; Laminar; Convective heat transfer; HEAT-TRANSFER;
D O I：
10.1007/978-81-322-2743-4_34
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
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.
引用
收藏
页码：353 / 362
页数：10
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