公开(公告)号：US20200171443A1

公开(公告)日：2020-06-04

申请号：US16713445

申请日：2019-12-13

Applicant: University of Florida Research Foundation, Inc.

Inventor： SUBRATA ROY

IPC: B01F3/02 ,  B01F13/00 ,  B01J19/08 ,  F23D14/68 ,  F23D14/62 ,  F23D11/40

Abstract: Embodiments of the subject invention are directed to methods and apparatus for inducing mixing in a fluid using one or more plasma actuators. In an embodiment, a pair of electrodes is positioned near a fluid and a voltage potential is applied across the pair of electrodes such that a plasma discharge is produced in the fluid. In an embodiment, the plasma discharge creates turbulence in the fluid thereby mixing the fluid. In an embodiment, flow structures, such as vortices are generated in the fluid. In an embodiment, the fluid is mixed in three dimensions. In an embodiment, a plurality of fluids are mixed. In an embodiment, solids are dispersed in at least one fluid. In an embodiment, heat or other properties are dispersed within at least one fluid. In an embodiment, at least one of the pair of electrodes has a serpentine shape.

公开(公告)号：US20160356556A1

公开(公告)日：2016-12-08

申请号：US15170111

申请日：2016-06-01

Applicant: University of Florida Research Foundation, Inc.

Inventor： SUBRATA ROY ,  WILLIAM E. LEAR, JR. ,  PENGFEI ZHAO

IPC: F28F5/00 ,  F28F3/02

CPC classification number: F04D33/00 ,  F28F3/022 ,  F28F13/125 ,  F28F13/16 ,  H05H1/48 ,  H05H2001/481 ,  H05H2001/483

Abstract: A plasma actuator of the present disclosure comprises a plate electrode; a needle electrode positioned at a height above the plate electrode and a distance away from the plate electrode; and a voltage source connected to the needle electrode. Application of a signal from the voltage source to the needle electrode forms surface corona discharge around a tip of the needle electrode, and air flow driven by the corona discharge from the tip of the needle electrode is induced at a surface of the plate electrode. Accordingly, the air flow that is created can be used to cool a surface, such as a circuit board, a heat exchanger, etc.

Abstract translation: 本公开的等离子体致动器包括板电极; 位于所述平板电极上方高度且距离所述平板电极的距离的针电极; 以及连接到针电极的电压源。 将来自电压源的信号施加到针电极在针电极的尖端周围形成表面电晕放电，并且在电极的表面处引起由针电极的尖端的电晕放电驱动的空气流。 因此，所产生的空气流可用于冷却诸如电路板，热交换器等的表面。

公开(公告)号：US20150246149A1

公开(公告)日：2015-09-03

申请号：US14709863

申请日：2015-05-12

Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.

Inventor： KARL R. ZAWOY ,  SUBRATA ROY ,  DANIEL WILLIAM PITUCH

IPC: A61L2/14 ,  A61L2/20

CPC classification number: A61L2/14 ,  A61B7/02 ,  A61B2562/245 ,  A61L2/20 ,  A61L2/202 ,  A61L2202/24

Abstract: A method and apparatus for disinfecting and/or self-sterilizing at least a portion of the surface of a stethoscope is provided. Methods and devices are provided by which a device or apparatus can generate a sterilizing plasma such that a stethoscope, or portion of a stethoscope, can be placed within or near the device or apparatus so that the plasma disinfects and/or sterilizes and/or decontaminates at least a portion of the stethoscope. A method and apparatus are disclosed for providing a self-disinfecting and/or self-sterilizing and/or self-decontaminating stethoscope and stethoscope disinfecting and/or sterilization apparatus for disinfecting and/or sterilizing, respectively, all or at least a portion of a stethoscope.

Abstract translation: 提供了一种用于对听诊器的表面的至少一部分进行消毒和/或自消毒的方法和装置。 提供了一种方法和装置，其中装置或装置可以产生灭菌等离子体，使得听诊器或听诊器的一部分可以放置在装置或装置内或附近，使得等离子体消毒和/或消毒和/或去污 至少听诊器的一部分。 公开了一种用于提供自消毒和/或自消毒和/或自净化听诊器和听诊器消毒和/或灭菌装置的方法和装置，其分别消毒和/或灭菌全部或至少一部分 听诊器

公开(公告)号：US20170284429A1

公开(公告)日：2017-10-05

申请号：US15511034

申请日：2015-09-29

Applicant: University of Florida Research Foundation, Inc.

Inventor： SUBRATA ROY ,  NICHOLAS S. CAMPBELL

IPC: F15D1/00 ,  H05H1/24

CPC classification number: F15D1/0075 ,  B64C23/005 ,  H05H1/2406 ,  H05H2001/2418 ,  Y02T50/166

Abstract: The present disclosure is directed towards electro-fluid transducers that may influence the flow of a fluid in and around a channel. In one such embodiment, a system comprises a first electrode at least partially encapsulated by a first dielectric; a second electrode at least partially encapsulated by a second dielectric, wherein a portion of a channel exists between the first dielectric and the second dielectric; a third electrode positioned in the channel; and a fourth electrode positioned in the channel, wherein the electrodes influence a flow of a fluid in the channel upon the electrodes being energized.

公开(公告)号：US20190249695A1

公开(公告)日：2019-08-15

申请号：US16395767

申请日：2019-04-26

Applicant: University of Florida Research Foundation, Inc.

Inventor： SUBRATA ROY ,  NICHOLAS S. CAMPBELL

IPC: F15D1/00 ,  H05H1/24 ,  B64C23/00

CPC classification number: F15D1/0075 ,  B64C23/005 ,  H05H1/2406 ,  H05H2001/2418 ,  Y02T50/166

Abstract: The present disclosure is directed towards electro-fluid transducers that may influence the flow of a fluid in and around a channel. In one such embodiment, a system comprises a first electrode at least partially encapsulated by a first dielectric; a second electrode at least partially encapsulated by a second dielectric, wherein a portion of a channel exists between the first dielectric and the second dielectric; a third electrode positioned in the channel; and a fourth electrode positioned in the channel, wherein the electrodes influence a flow of a fluid in the channel upon the electrodes being energized.

公开(公告)号：US20130134263A1

公开(公告)日：2013-05-30

申请号：US13720773

申请日：2012-12-19

Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.

Inventor： SUBRATA ROY

IPC: B64C39/00

CPC classification number: B64C39/001 ,  B64C39/00 ,  B64C39/028 ,  B64C2201/027 ,  B64C2201/042 ,  B64C2230/12 ,  F05D2270/172 ,  H05H1/2406 ,  Y02T50/166

Abstract: Embodiments of the subject invention relate to an air vehicle and a power source. Embodiments can operate at reasonable power levels for hovering and withstanding expected wind gusts. Embodiments can have a diameter less than 15 cm. Embodiments can have one or more smooth (continuous curvature) surface and can be operated using electromagnetic and electrohydrodynamic principles. The wingless design of specific embodiments can allow operation with no rotating or moving components. Additional embodiments can allow active response to the surrounding flow conditions. The issue of low lift to drag ratio and degradation of airfoil efficiency due to the inability of laminar boundary layers attachment can also be significantly reduced, or eliminated. The electromagnetic force can be generated by applying a pulsed (alternating/rf) voltage between a set of grounded and powered electrodes separated by a polymer insulator, dielectric, or other material with insulating properties.

Abstract translation: 本发明的实施例涉及一种机动车辆和动力源。 实施例可以以合理的功率水平进行操作，用于盘旋和耐受预期的阵风。 实施例可以具有小于15cm的直径。 实施例可以具有一个或多个平滑（连续曲率）表面，并且可以使用电磁和电动力学原理进行操作。 特定实施例的无翼设计可以允许在没有旋转或移动部件的情况下进行操作。 另外的实施例可以允许对周围流动条件的主动响应。 也可以显着地减少或消除由于层流边界层附着不能导致的低提升阻力比和翼型效率降低的问题。 电磁力可以通过在由聚合物绝缘体，电介质或具有绝缘性质的其它材料隔开的一组接地和供电电极之间施加脉冲（交替/ rf）电压来产生。