Systems and methods for active control of surface drag using wall coupling

    公开(公告)号:US11519433B2

    公开(公告)日:2022-12-06

    申请号:US16674870

    申请日:2019-11-05

    申请人: Deep Science, LLC

    摘要: A system includes a surface having a fluid flowing over the surface. The fluid includes a flow regime having a streamwise length scale greater than about 100 times η and less than about 100,000 times η, where η is a viscous length scale of the flow regime, and a convective time scale greater than about 10η′ and less than about 10,000η′, where η′ is a viscous time scale of the flow regime. The system includes a controller that causes at least one of motion the surface to modify fluid flow in the flow regime based on the streamwise length scale and the convective time scale or motion of the flow regime based on the streamwise length scale and the convective time scale.

    SYSTEMS AND METHODS FOR ACTIVE CONTROL OF SURFACE DRAG USING ELECTRODES

    公开(公告)号:US20210348628A1

    公开(公告)日:2021-11-11

    申请号:US17154763

    申请日:2021-01-21

    申请人: Deep Science, LLC

    IPC分类号: F15D1/00 B64C23/00 H05H1/24

    摘要: A fluid control system includes a dielectric-barrier discharge (DBD) device, and processing circuitry. The processing circuitry is configured to obtain a streamwise length scale of a fluid flowing over a surface. The processing circuitry is also configured to obtain a convective time scale of the fluid flowing over the surface. The processing circuitry is also configured to operate the DBD device, based on the streamwise length scale and the convective time scale, to adjust a flow property of the fluid.

    SYSTEMS AND METHODS FOR ACTIVE CONTROL OF SURFACE DRAG

    公开(公告)号:US20200148335A1

    公开(公告)日:2020-05-14

    申请号:US16740154

    申请日:2020-01-10

    申请人: Deep Science, LLC

    IPC分类号: B64C21/08

    摘要: A fluid control system includes a deformable surface that covers a body in at least a first and second direction. The first direction is orthogonal to the second direction. The deformable surface includes a bottom side that faces the body and a top side that is opposite the bottom side. The fluid control system also includes at least one deformer between the deformable surface and the body. The at least one deformer is configured to modify a boundary layer of a fluid that is flowing over the deformable surface by selectively deforming the top side of the surface.

    SYSTEMS AND METHODS FOR ACTIVE CONTROL OF SURFACE DRAG

    公开(公告)号:US20200031456A1

    公开(公告)日:2020-01-30

    申请号:US16518583

    申请日:2019-07-22

    申请人: Deep Science, LLC

    IPC分类号: B64C21/08

    摘要: A fluid control system includes a deformable surface that covers a body in at least a first and second direction. The first direction is orthogonal to the second direction. The deformable surface includes a bottom side that faces the body and a top side that is opposite the bottom side. The fluid control system also includes at least one deformer between the deformable surface and the body. The at least one deformer is configured to modify a boundary layer of a fluid that is flowing over the deformable surface by selectively deforming the top side of the surface.

    Systems and methods for active control of surface drag

    公开(公告)号:US11299260B2

    公开(公告)日:2022-04-12

    申请号:US16518583

    申请日:2019-07-22

    申请人: Deep Science, LLC

    IPC分类号: B64C21/10 F15D1/00 B64C21/08

    摘要: A fluid control system includes a deformable surface that covers a body in at least a first and second direction. The first direction is orthogonal to the second direction. The deformable surface includes a bottom side that faces the body and a top side that is opposite the bottom side. The fluid control system also includes at least one deformer between the deformable surface and the body. The at least one deformer is configured to modify a boundary layer of a fluid that is flowing over the deformable surface by selectively deforming the top side of the surface.