Global flow visualization of transonic cavity flow with various yaw angles

Chih Yung Huang; Chen Yen Yeh; Yun Fang Lin; Kung Ming Chung

doi:10.1177/0954410020984086

Global flow visualization of transonic cavity flow with various yaw angles

Chih Yung Huang, Chen Yen Yeh, Yun Fang Lin, Kung Ming Chung

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

6 Citations (Scopus)

Abstract

This study experimentally investigated transonic cavity flows with different length-to-depth (L/h) ratios and yaw angles. Two rectangular models with L/h = 6.14 and 21.5 were examined with yaw angles of 10°, 30°, and 45° under a flow of Mach 0.83. The flow was visualized using pressure-sensitive paint (PSP) to obtain the detailed pressure distribution inside the cavity models. The acquired PSP data were compared with experimental data measured using Kulite transducers, and these data showed favorable agreement. Gradual pressure increases inside the cavity model with L/h = 6.14 were observed from the PSP measurements as open cavity flow. The flow impingement at the bottom of the cavity and the significant pressure rise inside the cavity model with L/h = 21.5 were observed as closed cavity flow. The present study quantitatively visualized the evolution of the pressure distribution from symmetric to asymmetric for different yaw angles using porous PSP sensors.

Original language	English
Pages (from-to)	1751-1762
Number of pages	12
Journal	Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
Volume	235
Issue number	13
DOIs	https://doi.org/10.1177/0954410020984086
Publication status	Published - 2021 Oct

All Science Journal Classification (ASJC) codes

Aerospace Engineering
Mechanical Engineering

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title = "Global flow visualization of transonic cavity flow with various yaw angles",

abstract = "This study experimentally investigated transonic cavity flows with different length-to-depth (L/h) ratios and yaw angles. Two rectangular models with L/h = 6.14 and 21.5 were examined with yaw angles of 10°, 30°, and 45° under a flow of Mach 0.83. The flow was visualized using pressure-sensitive paint (PSP) to obtain the detailed pressure distribution inside the cavity models. The acquired PSP data were compared with experimental data measured using Kulite transducers, and these data showed favorable agreement. Gradual pressure increases inside the cavity model with L/h = 6.14 were observed from the PSP measurements as open cavity flow. The flow impingement at the bottom of the cavity and the significant pressure rise inside the cavity model with L/h = 21.5 were observed as closed cavity flow. The present study quantitatively visualized the evolution of the pressure distribution from symmetric to asymmetric for different yaw angles using porous PSP sensors.",

author = "Huang, {Chih Yung} and Yeh, {Chen Yen} and Lin, {Yun Fang} and Chung, {Kung Ming}",

note = "Funding Information: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The authors thank the Ministry of Science and Technology, Taiwan, for its financial support under the project no. MOST 108-2221-E-007-030-MY3. Publisher Copyright: {\textcopyright} IMechE 2021.",

year = "2021",

month = oct,

doi = "10.1177/0954410020984086",

language = "English",

volume = "235",

pages = "1751--1762",

journal = "Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering",

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AU - Huang, Chih Yung

AU - Yeh, Chen Yen

AU - Lin, Yun Fang

AU - Chung, Kung Ming

N1 - Funding Information: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The authors thank the Ministry of Science and Technology, Taiwan, for its financial support under the project no. MOST 108-2221-E-007-030-MY3. Publisher Copyright: © IMechE 2021.

PY - 2021/10

Y1 - 2021/10

N2 - This study experimentally investigated transonic cavity flows with different length-to-depth (L/h) ratios and yaw angles. Two rectangular models with L/h = 6.14 and 21.5 were examined with yaw angles of 10°, 30°, and 45° under a flow of Mach 0.83. The flow was visualized using pressure-sensitive paint (PSP) to obtain the detailed pressure distribution inside the cavity models. The acquired PSP data were compared with experimental data measured using Kulite transducers, and these data showed favorable agreement. Gradual pressure increases inside the cavity model with L/h = 6.14 were observed from the PSP measurements as open cavity flow. The flow impingement at the bottom of the cavity and the significant pressure rise inside the cavity model with L/h = 21.5 were observed as closed cavity flow. The present study quantitatively visualized the evolution of the pressure distribution from symmetric to asymmetric for different yaw angles using porous PSP sensors.

AB - This study experimentally investigated transonic cavity flows with different length-to-depth (L/h) ratios and yaw angles. Two rectangular models with L/h = 6.14 and 21.5 were examined with yaw angles of 10°, 30°, and 45° under a flow of Mach 0.83. The flow was visualized using pressure-sensitive paint (PSP) to obtain the detailed pressure distribution inside the cavity models. The acquired PSP data were compared with experimental data measured using Kulite transducers, and these data showed favorable agreement. Gradual pressure increases inside the cavity model with L/h = 6.14 were observed from the PSP measurements as open cavity flow. The flow impingement at the bottom of the cavity and the significant pressure rise inside the cavity model with L/h = 21.5 were observed as closed cavity flow. The present study quantitatively visualized the evolution of the pressure distribution from symmetric to asymmetric for different yaw angles using porous PSP sensors.

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Global flow visualization of transonic cavity flow with various yaw angles

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