Investigation of force transients during transverse and vortex gust encounters

Hülya Biler; Anya R. Jones; Murat Saritas; Idil Fenercioglu; Oksan Cetiner; Murat Bronz

doi:10.2514/6.2019-0636

Investigation of force transients during transverse and vortex gust encounters

Hülya Biler
, Anya R. Jones
, Murat Saritas
, Idil Fenercioglu
, Oksan Cetiner
, Murat Bronz

University of Maryland, College Park
Istanbul Technical University
Université Fédérale Toulouse Midi-Pyrénées

Araştırma çıktısı: Kitap/Rapor/Konferans Bildirisinde Bölüm › Konferans katkısı › Hakem

7 Atıf (Scopus)

Özet

This paper studies and compares the effects of transverse and vortex gust encounters. A sine-squared transverse gust was physically created in a water-filled towing tank via a free jet, while a vortex gust was created in a water channel by placing a gust generator plate that undergoes a clockwise half-rotation upstream of the test model. Force and flow field measurements were acquired in both cases. It was found that the gust encounter results in large force transients that follow similar trends during both the transverse and vortex gust encounters. In both cases, unsteady forcing was found to have dependency on time varying effective angle of attack. In order to mitigate the gust effects on lift, different pitching maneuvers were investigated and it has been found that forces produced by a pitching motion can dominate the force produced in a gust encounter.

Orijinal dil	İngilizce
Ana bilgisayar yayını başlığı	AIAA Scitech 2019 Forum
Yayınlayan	American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Basılı)	9781624105784
DOI'lar	https://doi.org/10.2514/6.2019-0636
Yayın durumu	Yayınlandı - 2019
Etkinlik	AIAA Scitech Forum, 2019 - San Diego, United States Süre: 7 Oca 2019 → 11 Oca 2019

Yayın serisi

Adı	AIAA Scitech 2019 Forum

???event.eventtypes.event.conference???

???event.eventtypes.event.conference???	AIAA Scitech Forum, 2019
Ülke/Bölge	United States
Şehir	San Diego
Periyot	7/01/19 → 11/01/19

Bibliyografik not

Publisher Copyright:
� 2019 by German Aerospace Center (DLR). Published by the American Institute of Aeronautics and Astronautics, Inc.

Finansman

The authors (HB and ARJ) gratefully acknowledge support from the Air Force Office of Scientific Research under grant FA9550-16-1-0508. Work at ITU is supported by TUBITAK Grant 115M358 (For the Application on UAVs and MAVs, Gust Effect on the Performance of Wings in Motion (Maneuver or Flapping) and Flow Control Attempts).

Finansörler	Finansör numarası
TUBITAK	115M358
UAVs
Air Force Office of Scientific Research	FA9550-16-1-0508

Belgeye Erişim

10.2514/6.2019-0636

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

@inproceedings{9d1963c10eca45b3beba31dd79eccadc,

title = "Investigation of force transients during transverse and vortex gust encounters",

abstract = "This paper studies and compares the effects of transverse and vortex gust encounters. A sine-squared transverse gust was physically created in a water-filled towing tank via a free jet, while a vortex gust was created in a water channel by placing a gust generator plate that undergoes a clockwise half-rotation upstream of the test model. Force and flow field measurements were acquired in both cases. It was found that the gust encounter results in large force transients that follow similar trends during both the transverse and vortex gust encounters. In both cases, unsteady forcing was found to have dependency on time varying effective angle of attack. In order to mitigate the gust effects on lift, different pitching maneuvers were investigated and it has been found that forces produced by a pitching motion can dominate the force produced in a gust encounter.",

author = "H{\"u}lya Biler and Jones, \{Anya R.\} and Murat Saritas and Idil Fenercioglu and Oksan Cetiner and Murat Bronz",

note = "Publisher Copyright: � 2019 by German Aerospace Center (DLR). Published by the American Institute of Aeronautics and Astronautics, Inc.; AIAA Scitech Forum, 2019 ; Conference date: 07-01-2019 Through 11-01-2019",

year = "2019",

doi = "10.2514/6.2019-0636",

language = "English",

isbn = "9781624105784",

series = "AIAA Scitech 2019 Forum",

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

booktitle = "AIAA Scitech 2019 Forum",

}

TY - GEN

T1 - Investigation of force transients during transverse and vortex gust encounters

AU - Biler, Hülya

AU - Jones, Anya R.

AU - Saritas, Murat

AU - Fenercioglu, Idil

AU - Cetiner, Oksan

AU - Bronz, Murat

N1 - Publisher Copyright: � 2019 by German Aerospace Center (DLR). Published by the American Institute of Aeronautics and Astronautics, Inc.

PY - 2019

Y1 - 2019

N2 - This paper studies and compares the effects of transverse and vortex gust encounters. A sine-squared transverse gust was physically created in a water-filled towing tank via a free jet, while a vortex gust was created in a water channel by placing a gust generator plate that undergoes a clockwise half-rotation upstream of the test model. Force and flow field measurements were acquired in both cases. It was found that the gust encounter results in large force transients that follow similar trends during both the transverse and vortex gust encounters. In both cases, unsteady forcing was found to have dependency on time varying effective angle of attack. In order to mitigate the gust effects on lift, different pitching maneuvers were investigated and it has been found that forces produced by a pitching motion can dominate the force produced in a gust encounter.

AB - This paper studies and compares the effects of transverse and vortex gust encounters. A sine-squared transverse gust was physically created in a water-filled towing tank via a free jet, while a vortex gust was created in a water channel by placing a gust generator plate that undergoes a clockwise half-rotation upstream of the test model. Force and flow field measurements were acquired in both cases. It was found that the gust encounter results in large force transients that follow similar trends during both the transverse and vortex gust encounters. In both cases, unsteady forcing was found to have dependency on time varying effective angle of attack. In order to mitigate the gust effects on lift, different pitching maneuvers were investigated and it has been found that forces produced by a pitching motion can dominate the force produced in a gust encounter.

UR - https://www.scopus.com/pages/publications/85083944528

U2 - 10.2514/6.2019-0636

DO - 10.2514/6.2019-0636

M3 - Conference contribution

AN - SCOPUS:85083944528

SN - 9781624105784

T3 - AIAA Scitech 2019 Forum

BT - AIAA Scitech 2019 Forum

PB - American Institute of Aeronautics and Astronautics Inc, AIAA

T2 - AIAA Scitech Forum, 2019

Y2 - 7 January 2019 through 11 January 2019

ER -

Investigation of force transients during transverse and vortex gust encounters

Özet

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???event.eventtypes.event.conference???

Bibliyografik not

Finansman

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