Correction: Persoons, T.; Cressall, R.; Alimohammadi, S. Validating a Reduced-Order Model for Synthetic Jet Actuators Using CFD and Experimental Data. Actuators 2018, 7, 67

Tim Persoons; Rick Cressall; Sajad Alimohammadi

doi:10.3390/act8010016

,

and

¹

School of Engineering, Parsons Building, Trinity College, Dublin 2, Ireland

²

Department of Aerospace and Mechanical Engineering, University of Notre Dame, South Bend, IN 46556, USA

³

Mechanical & Design Engineering School, Dublin Institute of Technology, Dublin 2, Ireland

^*

Author to whom correspondence should be addressed.

Actuators2019, 8(1), 16;https://doi.org/10.3390/act8010016

Version Notes

Order Reprints

The authors wish to make the following corrections to this paper [] in Section 2.2, Equation (19). The authors wish to replace:

Alternatively, the following equation is an empirical fit for

β

that is valid for

1 < a < 50

and

k A_{n}^{1 / 2} < 0.886

with a mean error of 1.7% and a maximum error of 5.9%:

β \approx - 0.34064 + 6.6771 \times 10^{- 2} k A_{n}^{1 / 2} + 1.5318 \times 10^{- 4} a^{2} + 2.7233 \times 10^{- 8} a^{4} + 0.78343 \exp (- 1.7384 \times 10^{- 2} a)

(19)

While Equation (19) is only valid for aspect ratios not exceeding 50, the value of

β

from Equations (16)–(18) in the limit for infinite aspect ratio (

a \to \infty

) is zero.

with:

Alternatively, the following equation is an empirical fit for

β

that is valid for any aspect ratio

a \geq 1

and

k A_{n}^{1 / 2} < 0.886

, with a mean error of 1.9% and a maximum error of 7.9% for

1 < a < 50

:

β \approx 0.5316 \exp (- 0.181 a^{0.44}) - 0.05247 k A_{n}^{1 / 2}

(19)

In the limit for infinite aspect ratio (

a \to \infty

), the low-frequency approximation of

β

obtained from Equations (16)–(19) is zero.

The authors would like to apologize for any inconvenience caused to the readers by these changes.

Reference

Persoons, T.; Cressall, R.; Alimohammadi, S. Validating a Reduced-Order Model for Synthetic Jet Actuators Using CFD and Experimental Data. Actuators 2018, 7, 67. [Google Scholar] [CrossRef]

© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

Correction: Persoons, T.; Cressall, R.; Alimohammadi, S. Validating a Reduced-Order Model for Synthetic Jet Actuators Using CFD and Experimental Data. Actuators 2018, 7, 67

Reference

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