Experimental Investigations of Different Loudspeakers Applied as Synthetic Jet Actuators
نویسندگان
چکیده
The paper presents the preliminary results of experimental investigation four various loudspeakers used for driving synthetic jet actuator. parameters, characteristic velocity, pressure inside cavity, device sound level (SPL), and heat sink thermal resistance, were presented input power frequency. resonance frequency was determined based on electrical impedance. highest momentum velocity achieved at diaphragm maximum observed, also resonant For same real delivered to actuator its frequency, resistance had lowest value specific loudspeaker. In turn, reached this all actuators tested, dependent velocity.
منابع مشابه
Optimization of Synthetic Jet Actuators
This paper describes the optimization of a piezoelectric-driven synthetic jet actuator based on a Lumped Element Modeling (LEM). To simplify the problem, this papers splits the optimization problem into two parts. First, a constrained optimization of the cavity volume and orifice dimensions of two baseline synthetic jets, each with a given piezoelectric diaphragm, is conducted using two differe...
متن کاملOn Plasma Synthetic Jet Actuators
The term plasma actuator refers to an asymmetric arrangement of two electrodes (typically rectangular strips) separated by dielectric material that can be used as active flow control devices. A plasma actuator design consisting of an annular electrode array, the plasma synthetic jet actuator (PSJA), is experimentally investigated in this paper. This particular geometry creates a zero-net mass f...
متن کاملPiezoelectric Actuators for Synthetic Jet Applications
Synthetic jets have been identified and utilized widely in airflow control applications. These jets of air are usually created by the use of compressed air, or an electromechanically driven vibrating platform. All of these approaches produce desired results in airflow-control such as enhanced lift and increased maneuverability. Despite the results however, system weight, size, response time and...
متن کاملA Jet Formation Criterion for Synthetic Jet Actuators
This paper proposes and validates a jet formation criterion for synthetic jet actuators. The synthetic jet is a zero net mass flux device, adding additional momentum but no mass to its surroundings. Jet formation is defined as a mean outward velocity along the jet axis and corresponds to the clear formation of shed vortices. It is shown that the synthetic jet formation is governed by the Strouh...
متن کاملExperimental Design and Analysis of Bimorphs as Synthetic Jet Diaphragms
Synthetic jet actuators are promising Active Flow Control (AFC) devices which could lead to saving millions of dollars in fuel consumption each year. The Bimorph piezoelectric actuators are an attractive alternative to other type of actuators as active diaphragms and are the focus of this work. Among the properties of a Bimorph actuator, a number of geometrical and physical external factors may...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Actuators
سال: 2021
ISSN: ['2076-0825']
DOI: https://doi.org/10.3390/act10090224