eprintid: 4448
rev_number: 8
eprint_status: archive
userid: 425
dir: disk0/00/00/44/48
datestamp: 2021-05-31 11:03:34
lastmod: 2021-05-31 11:03:34
status_changed: 2021-05-31 11:03:34
type: conference_item
metadata_visibility: show
creators_name: Viet Dung, Duong
creators_name: Lavi Rizki, Zuhal
creators_name: Hari, Muhammad
creators_id: duongdv@vnu.edu.vn
title: Unsteady Vortex Dynamics of Two-Dimensional Pitching Flat Plate Using Lagrangian Vortex Method
ispublished: pub
subjects: Aerospace
subjects: Mechanics
divisions: sae
abstract: Vortex dynamics of wakes generated by two-dimensional rectan-gular pitching flat plates in free stream are examined with directnumerical simulation using Lagrangian vortex method. The devel-oped method simulates external flow around complex geometryby tracking local velocities and vorticities of particles, introducedwithin the fluid domain. The viscous effect is modeled using acore spreading method coupled with the splitting and merging spa-tial adaptation scheme. The particle’s velocity is calculated usingBiot-Savart formulation. To accelerate computation, Fast MultipoleMethod (FMM) is employed. The solver is validated by perform-ing an impulsively started cylinder at Reynolds number 550. Theresults of the computation have reasonable agreement with refer-ences listed in literature. For the vortex dynamics of pitching flatplate, the detaching LEV creates a remarkable peak in the lift forcebefore the end of motion for the different pitching cases. For thelow Reynolds number, force generated by the pitching flat plateis fairly independent of Reynolds numbers. The current studiesalso observed that TEV produced at higher Reynolds number has astronger suction than that at smaller Reynolds numbers.
date: 2021-02
date_type: published
official_url: DOI: 10.1145/3459104.3459106
full_text_status: public
pres_type: paper
event_title: 2021 International Symposium on Electrical, Electronics and Information Engineering (ISEEIE 2021)
event_location: Seoul, Republic of Korea
event_dates: 19-21, February, 2021
event_type: conference
refereed: TRUE
related_url_url: DOI: 10.1145/3459104.3459106
citation:   Viet Dung, Duong and Lavi Rizki, Zuhal and Hari, Muhammad  (2021) Unsteady Vortex Dynamics of Two-Dimensional Pitching Flat Plate Using Lagrangian Vortex Method.  In: 2021 International Symposium on Electrical, Electronics and Information Engineering (ISEEIE 2021), 19-21, February, 2021, Seoul, Republic of Korea.     
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/4448/1/iseeie2021-2.pdf