Flow field analysis of Micro-V shape riblets airship surface

Huifeng Tan; Jingtian Kang; Jianzheng Wei; Changguo Wang

Flow field analysis of Micro-V shape riblets airship surface

Huifeng Tan
, Jingtian Kang
, Jianzheng Wei
, Changguo Wang^*

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

It is a viable form of drag reduction for airship to use airship envelope with micron-scale grooves. In this paper, the k-ω SST turbulence model is used to analyze the V-shaped micro-riblets. The velocity and pressure field are obtained using this model. Both the drag reduction mechanism for micro-grooves and the influence of different groove size are analyzed by the streamline pattern and the drag reduction rate. The results show that the streamline pattern is an important reason for drag reduction ability, and the grooves with appropriate size can reduce the drag between fluid and wall.

Original language	English
Pages (from-to)	32-35
Number of pages	4
Journal	Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology
Volume	46
Issue number	7
State	Published - 30 Jul 2014

Keywords

Airship
Drag reduction
Envelope
Micro-riblets

Cite this

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title = "Flow field analysis of Micro-V shape riblets airship surface",

abstract = "It is a viable form of drag reduction for airship to use airship envelope with micron-scale grooves. In this paper, the k-ω SST turbulence model is used to analyze the V-shaped micro-riblets. The velocity and pressure field are obtained using this model. Both the drag reduction mechanism for micro-grooves and the influence of different groove size are analyzed by the streamline pattern and the drag reduction rate. The results show that the streamline pattern is an important reason for drag reduction ability, and the grooves with appropriate size can reduce the drag between fluid and wall.",

keywords = "Airship, Drag reduction, Envelope, Micro-riblets",

author = "Huifeng Tan and Jingtian Kang and Jianzheng Wei and Changguo Wang",

year = "2014",

month = jul,

day = "30",

language = "英语",

volume = "46",

pages = "32--35",

journal = "Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology",

issn = "0367-6234",

publisher = "Harbin Institute of Technology",

number = "7",

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TY - JOUR

T1 - Flow field analysis of Micro-V shape riblets airship surface

AU - Tan, Huifeng

AU - Kang, Jingtian

AU - Wei, Jianzheng

AU - Wang, Changguo

PY - 2014/7/30

Y1 - 2014/7/30

N2 - It is a viable form of drag reduction for airship to use airship envelope with micron-scale grooves. In this paper, the k-ω SST turbulence model is used to analyze the V-shaped micro-riblets. The velocity and pressure field are obtained using this model. Both the drag reduction mechanism for micro-grooves and the influence of different groove size are analyzed by the streamline pattern and the drag reduction rate. The results show that the streamline pattern is an important reason for drag reduction ability, and the grooves with appropriate size can reduce the drag between fluid and wall.

AB - It is a viable form of drag reduction for airship to use airship envelope with micron-scale grooves. In this paper, the k-ω SST turbulence model is used to analyze the V-shaped micro-riblets. The velocity and pressure field are obtained using this model. Both the drag reduction mechanism for micro-grooves and the influence of different groove size are analyzed by the streamline pattern and the drag reduction rate. The results show that the streamline pattern is an important reason for drag reduction ability, and the grooves with appropriate size can reduce the drag between fluid and wall.

KW - Airship

KW - Drag reduction

KW - Envelope

KW - Micro-riblets

UR - https://www.scopus.com/pages/publications/84908371438

M3 - 文章

AN - SCOPUS:84908371438

SN - 0367-6234

VL - 46

SP - 32

EP - 35

JO - Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology

JF - Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology

IS - 7

ER -

Flow field analysis of Micro-V shape riblets airship surface

Abstract

Keywords

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