An investigation of dominant flow features in rotating turbulent pipe flows

Jefferson Davis, Sparsh Ganju, Anirudh Venkatesh, Sean Bailey, Christoph Brehm

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Rotating and swirling turbulence comprises an important class of turbulent flows, not only due to the complex physics that occur, but also due to their relevance to many engineering applications, such as combustion, cyclone separation, mixing, etc. In these types of flows, rotation strongly affects the characteristics and structure of turbulence. The underlying turbulent flow phenomena are complex and currently not well understood. The axially rotating pipe flow is a well-suited prototypical case for studying rotation effects in turbulence due to its simple geometry and the ability to be reproduced experimentally in a controlled environment. By examining the complex interaction of turbulent structures within rotating turbulent pipe flow, insight can be gained into the behavior of rotating flows relevant to engineering applications. Direct numerical simulations are conducted at a bulk Reynolds number of ReD = 19,000 with rotation numbers ranging from N = 0 to 3. In addition to providing turbulence statistics, proper orthogonal decomposition is used to identify the relevant (highest energy) modes of the flow and obtain an understanding about the coherence in the flow.

Original languageEnglish
Title of host publicationAIAA Scitech 2020 Forum
DOIs
StatePublished - 2020
EventAIAA Scitech Forum, 2020 - Orlando, United States
Duration: Jan 6 2020Jan 10 2020

Publication series

NameAIAA Scitech 2020 Forum
Volume1 PartF

Conference

ConferenceAIAA Scitech Forum, 2020
Country/TerritoryUnited States
CityOrlando
Period1/6/201/10/20

Bibliographical note

Funding Information:
This work was supported by funding from the National Science Foundation under award CBET-1706346 with Dr. R. Joslin as Program Manager.

Funding Information:
This work was supported by funding from the National Science Foundation under award CBET-1706346 with Dr. R. Joslin as Program Manager. This research is part of the Blue Waters sustained-petascale computing project, which is supported by the National Science Foundation (awards OCI-0725070 and ACI-1238993) and the state of Illinois. Blue Waters is a joint effort of the University of Illinois at Urbana-Champaign and its National Center for Supercomputing Applications. This work used the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation grant number ACI-1548562.35 Research was conducted using the Stampede2 and Comet HPC systems through allocation TG-CTS180008.

Funding Information:
This research is part of the Blue Waters sustained-petascale computing project, which is supported by the National Science Foundation (awards OCI-0725070 and ACI-1238993) and the state of Illinois. Blue Waters is a joint effort of the University of Illinois at Urbana-Champaign and its National Center for Supercomputing Applications.

Funding Information:
This work used the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation grant number ACI-1548562.35 Research was conducted using the Stampede2 and Comet HPC systems through allocation TG-CTS180008.

Publisher Copyright:
© 2020, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

  • Aerospace Engineering

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