Validation of computations around high-lift configurations by structured- And unstructured-mesh

被引：0

作者：

Murayama, Mitsuhiro ^{[1
]}

Yamamoto, Kazuomi ^{[1
]}

Kobayashi, Kunihiko ^{[2
]}

机构：

[1] Japan Aerospace Exploration Agency, Tokyo 182-8522, Japan

[2] Ryoyu Systems Company, Ltd., Tokyo 108-0074, Japan

来源：

Journal of Aircraft | 1600年 / 43卷 / 02期

关键词：

In this study; flow computations are performed on two-dimensional and three-dimensional high-lift configurations on multiblock structured and unstructured meshes. The objectives are to assess and improve the reliability in simulating the flow around such devices. First; two-dimensional computations on two-element and three-element airfoils are performed to investigate mesh dependency in detail. For unstructured meshes; this is carried out by using a mesh-refinement approach. The results show that sufficient mesh density away from the wing surface is required for accurate drag prediction because the flow has large circulation and wake. A mesh-refinement approach using entropy increment as the refinement indicator is also applied; and its effectiveness is validated. The method is effective in increasing the mesh points in the region of physical importance; such as wake; and the region where the numerical error is high. Three-dimensional computations on three-element trapezoidal wings with fuselage are also performed; and some modest grid studies are performed with structured meshes. Two configurations with full-span flap and part-span flap are used. Ways to improve the reliability of structured and unstructured meshes are discussed by comparing the results. The prediction of aerodynamic forces is quite reasonable even on the unstructured mesh at moderate settings of slat and flap; despite minor differences in local flow physics. However; it is also shown that the unstructured meshes should be further refined to resolve the wake near trailing edge; wing-tip vortices; and the flow separation at the juncture of the wing and body for more accurate prediction. Copyright © 2005 by the American Institute of Aeronautics and Astronautics; Inc. All rights reserved;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Journal article (JA)

引用

页码：395 / 406

共 50 条

[21] Evaluation of Computations and Transition Prediction Method for Aircraft High-Lift Configuration
Murayama, Mitsuhiro
Yokokawa, Yuzuru
Yamamoto, Kazuomi
Ueda, Yoshine
JOURNAL OF AIRCRAFT, 2009, 46 (05): : 1487 - 1499
[22] Verification and validation of openfoam for high-lift aircraft flows
Ashton, Neil
Skaperdas, Vangelis
Journal of Aircraft, 2019, 56 (04): : 1641 - 1657
[23] Verification and Validation of OpenFOAM for High-Lift Aircraft Flows
Ashton, Neil
Skaperdas, Vangelis
JOURNAL OF AIRCRAFT, 2019, 56 (04): : 1641 - 1657
[24] Numerical Study of Flowfield Around a Multislotted High-Lift Wing
Kuya, Yuichi
Ito, Ryo
Maki, Midori
Sawada, Keisuke
JOURNAL OF AIRCRAFT, 2021, 58 (02): : 383 - 389
[25] Simulation and optimization of flow control strategies for novel high-lift configurations
Meunier, M.
AIAA Journal, 2009, 47 (05): : 1145 - 1157
[26] Reynolds Number Scaling Effects on the European High-Lift Project Configurations
Rudnik, R.
Germain, E.
JOURNAL OF AIRCRAFT, 2009, 46 (04): : 1140 - 1151
[27] Reynolds number scaling effects on the european high-lift project configurations
Rudnik, R.
Germain, E.
Journal of Aircraft, 2009, 46 (04): : 1140 - 1151
[28] Designing actuators for active separation control experiments on high-lift configurations
Petz, Ralf
Nitsche, Wolfgang
ACTIVE FLOW CONTROL, 2007, 95 : 69 - +
[29] Simulation and Optimization of Flow Control Strategies for Novel High-Lift Configurations
Meunier, M.
AIAA JOURNAL, 2009, 47 (05) : 1145 - 1157
[30] High-performance 3D Unstructured Mesh Deformation Using Rank Structured Matrix Computations
Alomairy, Rabab
Bader, Wael
Ltaief, Hatem
Mesri, Youssef
Keyes, David
ACM TRANSACTIONS ON PARALLEL COMPUTING, 2022, 9 (01)

← 1 2 3 4 5 →