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Actuators
Special Issues
Actuators for Flow Control and Heat Transfer
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Actuators for Flow Control and Heat Transfer

A special issue of Actuators (ISSN 2076-0825). This special issue belongs to the section "Aircraft Actuators".

Deadline for manuscript submissions: closed (30 August 2022) | Viewed by 4121

Special Issue Editors

Prof. Dr. Manel Soria

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Guest Editor
The School of Industrial, Aerospace and Audiovisual Engineering of Terrassa (ESEIAAT), Department of Physics, Universitat Politècnica de Catalunya (UPC), C. Colom 11, 08222 Terrassa, Spain
Interests: synthetic jets; active flow control; heat transfer; turbulence; computational fluid dynamics; atmospheric dynamics
Dr. Arnau Miró

E-Mail Website
Guest Editor
Department of Computer Applications in Science and Engineering (CASE), Barcelona Supercomputing Center (BSC), 08034 Barcelona, Catalonia, Spain
Interests: synthetic jets; active flow control; heat transfer; turbulence; computational fluid dynamics; machine learning

Special Issue Information

Dear Colleagues,

In recent decades, actuators for flow control and heat transfer have been used in a number of applications. We are concerned with two of them: the reattachment of boundary layers and novel cooling solutions in the field of electronics, such as light-emitting diodes (LED) or integrated circuit packages. In the last few years, the need for more efficient aerodynamics and more compact electronic systems has seen an increasing application of both active and passive actuators. This has led to a better understanding of the behavior of such actuators, obtained by means of experimental and numerical works that have helped to provide new designs, better control techniques, and more accurate mathematical models. This Special Issue aims to present advances in the understanding and development of actuators for both flow control and heat transfer applications, as well as the use of such actuators in novel applications in both areas.

We look forward to your valuable contributions.

Prof. Dr. Manel Soria
Dr. Arnau Miró
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Actuators is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • flow control 
  • heat transfer
  • synthetic jet actuators 
  • fluidic actuators 
  • plasma actuators

Published Papers (1 paper)

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Research

15 pages, 4117 KiB  
Article
A Double-Acting Piezoelectric Actuator for Helicopter Active Rotor
by Jinlong Zhou, Linghua Dong and Weidong Yang
Actuators 2021, 10(10), 247; https://0-doi-org.brum.beds.ac.uk/10.3390/act10100247 - 24 Sep 2021
Cited by 4 | Viewed by 3023
Abstract
An active rotor with trailing-edge flaps is an effective approach to alleviate vibrations and noise in helicopters. In this study, a compact piezoelectric actuator is proposed to drive trailing-edge flaps. The two groups of piezoelectric stacks accommodated in the actuator operate in opposition, [...] Read more.
An active rotor with trailing-edge flaps is an effective approach to alleviate vibrations and noise in helicopters. In this study, a compact piezoelectric actuator is proposed to drive trailing-edge flaps. The two groups of piezoelectric stacks accommodated in the actuator operate in opposition, and double-acting output can be realized through the differential motion of these stacks. A theoretical model and a finite element model are established to predict the output capability of this actuator, and structural optimization is performed using the finite element model. A prototype is built and tested on a benchtop to assess its performance. Test results demonstrate that the actuator stiffness reaches 801 N/mm, and its output stroke is up to ±0.27 mm when subjected to actuation voltage of 120 V. Agreement between measurements and simulations validates the accuracy of the established models. In addition, actuator outputs in failure modes are measured by canceling the supply voltage of one group of piezoelectric stacks. In this condition, the actuator can still generate acceptable outputs, and the initial position of the output end remains unchanged. Simulations and test results reveal that the proposed actuator achieves promising performance, and it is capable to be applied to a helicopter active rotor. Full article
(This article belongs to the Special Issue Actuators for Flow Control and Heat Transfer)
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