Influence of nozzle configuration on the flow field of multiple jets

被引：13

作者：

Kannan, B. T. ^{[1
]}

Panchapakesan, N. R. ^{[1
]}

机构：

[1] Indian Inst Technol Madras, Dept Aerosp Engn, Turbulent Unsteady Fluid Flows Grp, Madras, Tamil Nadu, India

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF AEROSPACE ENGINEERING | 2018年 / 232卷 / 09期

关键词：

Axisymmetric jet; multiple jets; turbulence; k-epsilon model; numerical study; TURBULENCE MEASUREMENTS; SIMULATION; ARRAY;

D O I：

10.1177/0954410017699008

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Turbulent jet flows with multiple nozzle inlets are investigated computationally using OpenFOAM. The configurations vary from single to five axisymmetric nozzles. First-order closure is used with Reynolds-averaged Navier-Stokes equations. Computed results are compared with the available experimental data. The effect of nozzle configuration on the jet flow field is discussed with predicted mean flow and turbulent flow data. Near-field of multiple jets shows the nonlinear behavior. Multiple jets show better performance in the near-field based on entrainment, secondary flows, and area-averaged turbulent kinetic energy. The downstream evolution of the multiple jets differs for configurations with and without central jet. The shape parameter confirms the evolution of the multiple jets towards an axisymmetric jet.

引用

页码：1639 / 1654

页数：16

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