Behavior of Plane Synthetic Jets Passing Over Two-Dimensional Flat Plates

Article Sidebar

PDF
Published: Feb 15, 2024
Keywords:
Synthetic jet Flat plates Vortex Frequency CFD

Main Article Content

K. Suzuki
Mechanical Engineering Program in the Graduate School of Engineering, Kogakuin University, Tokyo 192-0015, Japan
K. Nishibe
Department of Mechanical Engineering, Tokyo City University, Tokyo 158-8557, Japan
K. Sato
Department of Mechanical System Engineering, Kogakuin University, Tokyo 192-0015, Japan

Abstract

Airflow control in railway and aircraft cabins, including air-conditioning and ventilation, is attracting increasing attention. Jet technology is typically employed for performing such controls. Synthetic jets, known for their inherent unsteadiness, have been investigated as an alternative to continuous jets,  yielding diverse results. Researchers have endeavoured to elucidate the flow characteristics of synthetic jets in asymmetric flow fields. However, the relationship between the partition plate, which corresponds to a seat in a guest room, and jet flow remains unclear. Notably, studies investigating the flow characteristics when a partition plate is installed downstream of a synthetic jet are rare. In this study, the effects of a two-dimensional row of flat plates on the flow characteristics of a planar synthetic jet is investigated by installing multiple partition walls downstream of the slot. Flow visualization, velocimetry, and numerical simulations are performed, and the relationship between the recirculating flow and dimensionless frequency is discussed.

Article Details

How to Cite
Suzuki, K., K. Nishibe, & K. Sato. (2024). Behavior of Plane Synthetic Jets Passing Over Two-Dimensional Flat Plates. Journal of Research and Applications in Mechanical Engineering, 12(1), JRAME–24. Retrieved from https://ph01.tci-thaijo.org/index.php/jrame/article/view/254267
Issue
Vol. 12 No. 1 (2024)
Section
RESEARCH ARTICLES
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

by-nc-sa

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

References

Neuendorf R, Wygnanski I. On a turbulent wall jet flowing over a circular cylinder. J Fluid Mech. 1999;381:1-25.

Shakouchi T. Jet Flow engineering. Tokyo: Morikita Publishing; 2004.

Holman R, Utturkar Y, Mittal R, Smith BL, Cattafesta L. Formation criterion for synthetic jets. AIAA J. 2005;43(10):2110-2116.

Smith BL, Swift GW. A comparison between synthetic jets and continuous jets. Exp Fluids. 2003;34(4):467-472.

Nishibe K, Fujita Y, Sato K, Yokota K, Koso T. Experimental and numerical study on the flow characteristics of synthetic jets. J Fluid Sci Technol. 2011;6(4):425-436.

Nishibe K, Nomura Y, Noda K, Ohue H, Sato K. Influence of stroke on performance characteristics of synthetic jet fan. J Appl Fluid Mech. 2018;11(4):945-956.

Koso T, Morita M. Effects of stroke and Reynolds number on characteristics of circular synthetic jets. J Fluid Sci Technol. 2014;9(2):1-15.

Koso T, Matsuda S, Masuda H, Akahoshi T. Effect of stroke on structure of vortex ring array in circular synthetic jets. J Fluid Sci Technol. 2014;9(3):1-11.

Yasumiba M, Nishibe K, Kang D, Sato K. Flow characteristics of two-dimensional impinging synthetic jets. J Energy Syst. 2023;7(4):327-338.

Kobayashi R, Nishibe K, Watabe Y, Sato K, Yokota K. Vector control of synthetic jets using an asymmetric slot. J Fluids Eng. 2018;140(5):051102.

Kobayashi R, Terakado H, Sato K, Taniguchi J, Nishibe K, Yokota K. Behavior of plane synthetic jets generated by an asymmetric stepped slot. Int J Fluid Mach Syst. 2020;13(1):253-265.

Terakado H, Nishibe K, Kang D, Yokota K, Sato K. Behavior of synthetic jets in an asymmetric flow field. The 6th International Conference on Jets, Wakes and Separated Flows (ICJWSF2017); 2017 Oct 9-12; Cincinnati, United States.

Kawahara R, Kobayashi R, Sato K, Nishibe K, Yokota T. Influence of stepped slot geometry on the deflection of synthetic jets. Proceedings of 31st International Symposium on Transport Phenomena; 2020 Oct 13-16; Online.

Ito T, Miyachi Y, Nishibe K, Sato K. Influence of rectangular protrusion-shaped slot on flow characteristics of synthetic jets. In the 7th International Conference on Jets, Wakes and Separated Flow (ICJWSF2022); 2022 Mar 15-17; Online.

Ito T, Nishibe K, Sato K, Kang D. Influence of asymmetric protrusion-shaped slots on synthetic jets. The 32nd International Symposium on Transport Phenomena; 2022 Mar 19-21; Tianjin, China.

Kobayashi R, Watanabe Y, Tamanoi Y, Nishibe K, Kang D, Sato K. Jet vectoring using secondary Coanda synthetic jets. Mech Eng J. 2020;7(5):1-17.

Zhang Q, Tamanoi Y, Kang D, Nishibe K, Yokota K, Sato K. Influence of amplitude of excited secondary flow on the direction of jets. Trans Japan Soc Aero Space Sci. 2023;66(2):37-45.

Tezuka H, Zhang Q, Nishibe K, Sato K. Flow-direction control of primary jets near a wall boundary using secondary flow with a coanda surface. J Res Appl Mech Eng. 2023;11(2):1-7.

Okada T, Hiruma T, Nishibe K, Sato K. Flow characteristics of synthetic jet near curved wall. Proceedings of the 9th World Congress on Mechanical, Chemical, and Material Engineering (MCM'23); 2023 Aug 6-8; London, United Kingdom.

Sakakura T, Yamaguchi K, Nishibe K, Ohue H, Sato K. Influence of stroke on jet structure of wall-synthetic jet flowing over circular cylinder. The 31st International Symposium on Transport Phenomena; 2020 Oct 13-16; Online.

Yamaguchi K, Sakakura T, Nishibe K, Ohue H, Sato K. Jet structure of plane and curved wall-synthetic jet. The 31st International Symposium on Transport Phenomena; 2020 Oct 13-16; Online.

Krishan G, Aw KC, Sharma RN. Synthetic jet impingement heat transfer enhancement: a review. Appl Therm Eng. 2019;149:1305-1323.