0
research-article

A New Model Approach for Convective Wall Heat Losses in DQMoM-IEM Simulations for Turbulent Reactive Flows

[+] Author and Article Information
Yeshaswini Emmi

German Aerospace Centre (DLR), Institute of Combustion Technology, Pfaffenwaldring 38-40, D-70569 Stuttgart, Germany
yeshaswini.emmi@dlr.de

Andreas Fiolitakis

German Aerospace Centre (DLR), Institute of Combustion Technology, Pfaffenwaldring 38-40, D-70569 Stuttgart, Germany
andreas.fiolitakis@dlr.de

Manfred Aigner

German Aerospace Centre (DLR), Institute of Combustion Technology, Pfaffenwaldring 38-40, D-70569 Stuttgart, Germany
manfred.aigner@dlr.de

Franklin Genin

GE (Switzerland) GmbH, Brown Boveri Strasse 7, 5400 Baden, Switzerland
Franklin.Genin@ge.com

Khawar Syed

GE (Switzerland) GmbH, Brown Boveri Strasse 7, 5400 Baden, Switzerland
khawar.syed@btinternet.com

1Corresponding author.

ASME doi:10.1115/1.4041726 History: Received June 26, 2018; Revised September 25, 2018

Abstract

A new model approach is presented in this work for including convective wall heat losses in the Direct Quadrature Method of Moments (DQMoM) approach, which is used here to solve the transport equation of the one-point, one-time joint thermochemical probability density function (PDF). This is of particular interest in the context of designing industrial combustors, where wall heat losses play a crucial role. In the present work, the novel method is derived for the first time and validated against experimental data for the thermal entrance region of a pipe. The impact of varying model-specific boundary conditions is analysed. It is then used to simulate the turbulent reacting flow of a confined methane jet flame. The simulations are carried out using the DLR in-house Computational Fluid Dynamics (CFD) code THETA. It is found that the DQMoM approach presented here agrees well with the experimental data and ratifies the use of the new convective wall heat losses model.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In