TY - GEN
T1 - Computational analysis of thin airfoilsunder low-reynolds number flow using block-structured cartesian mesh
AU - Iioka, Daiki
AU - Fukuda, Kazuki
AU - Okamoto, Masato
AU - Sasaki, Daisuke
AU - Shimoyama, Koji
AU - Obayashi, Shigeru
N1 - Funding Information:
This work was partly supported by JSPS KAKENHI Grant Number JP16K06894.
Publisher Copyright:
© 2017 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.
PY - 2017
Y1 - 2017
N2 - The aim of this computational study is to accurately predict complicated flowfields and obtain accurate aerodynamic forces of a thin folding plate under low Reynolds number range. The thin folding plate is a bent flat plate at a point, and is known to cause the non-linear lift curve at the flow regime. One of Cartesian-Mesh CFD solvers, Building-Cube Method (BCM), is used to compute the flows around the thin airfoils. The computed results of a thin flat plate and a thin folding plate are compared with the experimental results. Throughout this study, the effectiveness of BCM against thin airfoils at low Reynolds number flows is discussed. It is expected that the rapid increase of negative pressure in separation bubble at leading-edge causes the increase of Cl, which leads the non-linear lift curve.
AB - The aim of this computational study is to accurately predict complicated flowfields and obtain accurate aerodynamic forces of a thin folding plate under low Reynolds number range. The thin folding plate is a bent flat plate at a point, and is known to cause the non-linear lift curve at the flow regime. One of Cartesian-Mesh CFD solvers, Building-Cube Method (BCM), is used to compute the flows around the thin airfoils. The computed results of a thin flat plate and a thin folding plate are compared with the experimental results. Throughout this study, the effectiveness of BCM against thin airfoils at low Reynolds number flows is discussed. It is expected that the rapid increase of negative pressure in separation bubble at leading-edge causes the increase of Cl, which leads the non-linear lift curve.
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U2 - 10.2514/6.2017-0546
DO - 10.2514/6.2017-0546
M3 - Conference contribution
AN - SCOPUS:85017224782
T3 - AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
BT - AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - 55th AIAA Aerospace Sciences Meeting
Y2 - 9 January 2017 through 13 January 2017
ER -