Device and method for measuring a physical magnitude of a fluid flow

    公开(公告)号:US10684190B2

    公开(公告)日:2020-06-16

    申请号:US15313408

    申请日:2015-05-22

    IPC分类号: G01M9/06

    摘要: A device measures at least a first physical quantity of fluid flow in a three-dimensional space having at least one predetermined interface, between at least two media. The device comprises a computer prescribing first and second conditions at the different boundaries concerning the first physical quantity, associated respectively with a first source and a second source, different to one another, the first and second sources being point sources of mass flow of fluid and/or of force. The computer calculates, by distributed point source calculation, a first value of the first physical quantity from the first condition and from the first source and a second value of the first physical quantity from the second condition and from the second source, at at least one second point, different from the first test point, then combines the values to calculate for the first physical quantity respectively from the different boundary conditions and sources.

    Energy-deposition systems, equipment and methods for modifying and controlling shock waves and supersonic flow

    公开(公告)号:US10605279B2

    公开(公告)日:2020-03-31

    申请号:US14601742

    申请日:2015-01-21

    申请人: Kevin Kremeyer

    发明人: Kevin Kremeyer

    摘要: Systems, equipment, and methods to deposit energy to modify and control shock waves and hypersonic or supersonic fluid flow, including systems for controlling, mitigating, and/or effecting air flow in relation to air vehicles, wind tunnels, or other assets, or the like, as well as systems, equipment, and methods for disrupting the shock structure at the inlet for the engine of an air vehicle traveling at supersonic or hypersonic speed; mitigating blast effects on vehicles; mitigating heating of throats in supersonic and hypersonic wind tunnels, as well as control the flow parameters and Mach number in their test sections.

    METHOD FOR ALLEVIATING AND PROTECTING LOADS FOR AN AIRCRAFT

    公开(公告)号:US20200026275A1

    公开(公告)日:2020-01-23

    申请号:US16121226

    申请日:2018-09-04

    摘要: A method for alleviating and protecting loads of a lifting surface of an aircraft based on control of structural distortions of the lifting surface. The lifting surface includes a control surface, a maneuvering system for displacing the control surface and sensors which measure a dimensional characteristic linked to the distortion of the lifting surface. The method acquires characteristic data linked to the distortion of the lifting surface, determines a set of values of the shape, analyzes the value of the strain attribute and compares the set of values characterizing the shape to the values of the tolerance interval associated with the lifting surface. If the set of values characterizing the shape is outside of the interval, the process triggers an activation of the maneuvering system to displace the control surface from an initial position in order to alleviate the loads on the lifting surface.

    METHOD AND APPARATUS FOR MONITORING FLUID DYNAMIC DRAG

    公开(公告)号:US20190301969A1

    公开(公告)日:2019-10-03

    申请号:US16302768

    申请日:2017-05-18

    摘要: Methods and apparatus for monitoring fluid-dynamic drag on an object, such as a bicycle, ground vehicle, watercraft, aircraft, or portion of a wind turbine are provided. An array of sensors obtain sensor readings for example indicating: power input for propelling the object; air speed and direction relative to motion of the object; and ground speed of the object. Sensor readings may also indicate: temperature; elevation and humidity for providing a measurement of air density. Sensor readings may also indicate inclination angle and forward acceleration. Processing circuitry determines a coefficient of drag area based on the sensor readings and optionally one or more stored parameters, according to a predetermined relationship. A pitot tube based apparatus for measuring fluid speed and direction is also provided. Methods for dynamic in situ calibration of the pitot tube apparatus, and of adjusting correction factors applied to correct measurement errors of this apparatus are also provided.

    Transportable wind tunnel
    96.
    发明授权

    公开(公告)号:US10345191B2

    公开(公告)日:2019-07-09

    申请号:US15415687

    申请日:2017-01-25

    IPC分类号: G01M9/04 G01M9/06 G01M17/007

    摘要: A transportable wind tunnel testing automobiles, motorcycles, bicycles, scale-model aircraft, building structures, and other products requiring high-quality and low noise directed air flow. The wind tunnel comprises one or more containers which can be separately transported on trailers. Each wind tunnel container comprises one or more fans, conditioning screens, acoustic baffles, and a reduction or contraction section. Wind tunnels may be connected end-to-end or side-to-side, with joined outflow. The wind tunnel containers can be used on the trailers, or can be removed and temporarily installed at a location.

    SYSTEMS AND METHODS FOR CORRECTING ACOUSTIC ERROR IN PRESSURE SENSORS

    公开(公告)号:US20190003912A1

    公开(公告)日:2019-01-03

    申请号:US15641148

    申请日:2017-07-03

    发明人: Sho Sato Chen Chuck

    IPC分类号: G01L19/00 G01M9/06 B64D43/00

    摘要: Various techniques are provided for correcting error in static pressure data. In one example, a system includes an aircraft component. The aircraft component can include a port disposed within the aircraft component. A static pressure sensor is disposed within the port. The static pressure sensor is configured to provide primary pressure data in response to environmental air pressure. The data provided can include error due to acoustic disturbance. The system can also include an acoustic sensor configured to provide acoustic data in response to the acoustic disturbance. Data from the static pressure sensor and the acoustic sensor can be provided to a processor communicatively coupled to the static pressure sensor and the acoustic sensor. The processor can be configured to determine corrected static pressure data using the provided primary pressure data and the provided acoustic data. Additional systems and similar methods are also provided.