Investigation of the impact of deep convergence on the simulation of hovering rotors

Jennifer Abras; Ryan Glasby; Kevin Holst; Nathan Hariharan

Investigation of the impact of deep convergence on the simulation of hovering rotors

Jennifer Abras
, Ryan Glasby
, Kevin Holst
, Nathan Hariharan

Multiphysics Modeling and Flows

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

7 Scopus citations

Abstract

The present effort investigates the impact of deep temporal convergence on hover prediction using the results of a higher-order Stream-wise Upwind/Petrov-Galerkin (SU/PG) finite element method. Both rotational reference frame and spinning rotor computations are pursued as is a comparison of 2^nd-order and 4^th-order temporal convergence. Both the integrated performance and the wake structure are investigated. The results show that the deeper temporal convergence allows for larger time step sizes without a negative impact to the prediction. The wake features are well resolved and convergence of these features is accelerated through initialization using a rotational steady-state simulation. These simulations lay the groundwork for a larger ongoing effort.

Original language	English
Title of host publication	AIAA Scitech 2021 Forum
Publisher	American Institute of Aeronautics and Astronautics Inc, AIAA
Pages	1-11
Number of pages	11
ISBN (Print)	9781624106095
State	Published - 2021
Event	AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 - Virtual, Online Duration: Jan 11 2021 → Jan 15 2021

Publication series

Name	AIAA Scitech 2021 Forum

Conference

Conference	AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
City	Virtual, Online
Period	01/11/21 → 01/15/21

Funding

Material presented in this paper is a product of the CREATE (Computational Research and Engineering for Acquisition Tools and Environments) element of the U.S. Department of Defense HPC Modernization Program. In addition, the authors would like to acknowledge the support of the supercomputing resources provided by the HPCMP, in particular the Air Force Research Lab (AFRL) and the Army Engineer Research and Development Center (ERDC). The blade and hub models, test reports, and standardization guidance provided through the AIAA workshop are also gratefully acknowledged.

Cite this

@inproceedings{c5fc4eddc3a24b919370d1c8008c97d3,

title = "Investigation of the impact of deep convergence on the simulation of hovering rotors",

abstract = "The present effort investigates the impact of deep temporal convergence on hover prediction using the results of a higher-order Stream-wise Upwind/Petrov-Galerkin (SU/PG) finite element method. Both rotational reference frame and spinning rotor computations are pursued as is a comparison of 2nd-order and 4th-order temporal convergence. Both the integrated performance and the wake structure are investigated. The results show that the deeper temporal convergence allows for larger time step sizes without a negative impact to the prediction. The wake features are well resolved and convergence of these features is accelerated through initialization using a rotational steady-state simulation. These simulations lay the groundwork for a larger ongoing effort.",

author = "Jennifer Abras and Ryan Glasby and Kevin Holst and Nathan Hariharan",

note = "Publisher Copyright: {\textcopyright} 2021, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.; AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 ; Conference date: 11-01-2021 Through 15-01-2021",

year = "2021",

language = "English",

isbn = "9781624106095",

series = "AIAA Scitech 2021 Forum",

publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",

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}

Investigation of the impact of deep convergence on the simulation of hovering rotors. / Abras, Jennifer; Glasby, Ryan; Holst, Kevin et al.
AIAA Scitech 2021 Forum. American Institute of Aeronautics and Astronautics Inc, AIAA, 2021. p. 1-11 (AIAA Scitech 2021 Forum).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Investigation of the impact of deep convergence on the simulation of hovering rotors

AU - Abras, Jennifer

AU - Glasby, Ryan

AU - Holst, Kevin

AU - Hariharan, Nathan

PY - 2021

Y1 - 2021

N2 - The present effort investigates the impact of deep temporal convergence on hover prediction using the results of a higher-order Stream-wise Upwind/Petrov-Galerkin (SU/PG) finite element method. Both rotational reference frame and spinning rotor computations are pursued as is a comparison of 2nd-order and 4th-order temporal convergence. Both the integrated performance and the wake structure are investigated. The results show that the deeper temporal convergence allows for larger time step sizes without a negative impact to the prediction. The wake features are well resolved and convergence of these features is accelerated through initialization using a rotational steady-state simulation. These simulations lay the groundwork for a larger ongoing effort.

AB - The present effort investigates the impact of deep temporal convergence on hover prediction using the results of a higher-order Stream-wise Upwind/Petrov-Galerkin (SU/PG) finite element method. Both rotational reference frame and spinning rotor computations are pursued as is a comparison of 2nd-order and 4th-order temporal convergence. Both the integrated performance and the wake structure are investigated. The results show that the deeper temporal convergence allows for larger time step sizes without a negative impact to the prediction. The wake features are well resolved and convergence of these features is accelerated through initialization using a rotational steady-state simulation. These simulations lay the groundwork for a larger ongoing effort.

UR - https://www.scopus.com/pages/publications/85100296877

M3 - Conference contribution

AN - SCOPUS:85100296877

SN - 9781624106095

T3 - AIAA Scitech 2021 Forum

SP - 1

EP - 11

BT - AIAA Scitech 2021 Forum

PB - American Institute of Aeronautics and Astronautics Inc, AIAA

T2 - AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021

Y2 - 11 January 2021 through 15 January 2021

ER -

Investigation of the impact of deep convergence on the simulation of hovering rotors

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