| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | VORTEX IDENTIFICATION METHODS AND TOOLS | US15172637 | 2016-06-03 | US20160377504A1 | 2016-12-29 | Yiping KE; Jian Cheng WONG; Chi-Keong GOH; Kee Khoon LEE |
| A vortex detection method is described. The method comprises storing a plurality of points at locations over a region (32) in which vortex detection is to be performed. A value for each of a plurality of fluid flow parameters, such as velocity, pressure and density, is determined at each point. The points are grouped as being contained in either a vortical flow portion or non-vortical flow portion of the region according to one or more statistical distribution for said fluid flow parameters. A point (p) in a vortex core is identified according to the direction of motion of an array of further points (46) relative to said point in the vortex core. The further points (46) may surround the vortex core point. | ||||||
| 182 | Device for Simulating Crash Scenarios | US14088974 | 2013-11-25 | US20140144207A1 | 2014-05-29 | Robert Weber |
| A device for simulating the effects of a crash on a test object is provided. The device includes a sled adapted to be accelerated in the longitudinal direction. The sled comprises a lower part and an upper part supported thereon used as a carrier for the test object. The lower part and the upper part have actuators provided between them, whereby pitching and yawing movements of the upper part can be generated. The upper part is, on an impact-side front end of the sled, propped against the lower part by means of a coupling rod which is rotatably coupled on both sides thereof, at least five actuators provided between the lower part and the upper part, the upper part being supported on the lower part via the actuators and the coupling rod such that a rolling movement of the upper part can additionally be generated by means of the actuators. | ||||||
| 183 | HYDROELECTRIC TURBINE TESTING METHOD | US13996106 | 2011-12-22 | US20140102189A1 | 2014-04-17 | Paul Dunne; James Ives |
| A method of testing a hydroelectric turbine before the turbine is installed and secured on the seabed, in order to ensure that the turbine is operating as expected, the method involving securing the turbine to a vessel and displacing the vessel through water in order to effect rotation while monitoring one or more operating parameters of the turbine. | ||||||
| 184 | Model hull testing method, platform, and system | US13136149 | 2011-07-25 | US08381584B1 | 2013-02-26 | Charles W. Robinson; William F. Burns, III |
| A model hull testing method, platform, and system are disclosed that acquire model hull performance data about one or more hulls in an open-water environment, preferably testing two hulls simultaneously as they encounter essentially the same sea state. Avoiding tow-tank testing by providing a powered watercraft as an open-water testing platform, the method proceeds by supporting the model hulls on the testing platform, so they float in outboard positions, and then by acquiring data about hull performance as the testing platform and model hulls move together through an open body of water. A complement of data acquisition components acquires digital and analog data about the testing environment and model hull performance, preferably including platform motion, time and location information, wave characteristics, apparent wind speed and direction, and model hull drag and motion, with all data being recorded on an onboard laptop computer for later processing and analysis. A trimaran powered watercraft configuration and preferred data-acquisition components and techniques are also disclosed. | ||||||
| 185 | MOBILE HYDRO GEOTHERMAL TESTING SYSTEMS AND METHODS | US13205568 | 2011-08-08 | US20120079880A1 | 2012-04-05 | Scott Freitag |
| A fluid flushing and pressurization apparatus for use with geothermal systems, capable of delivering a reversible high-velocity flow of fluid through a system of buried PE pipe without introducing an overpressure condition or water hammer. The apparatus can be utilized with methods for installing, preparing, flushing, filling, testing, and certifying geothermal heating and cooling systems. A portable pumping and testing apparatus can include a high-volume pump, a high-pressure pump, a flow meter, and pressure sensors in wired or wireless communication with a processor or logic controller such that continuous or periodic monitoring of the system can be recorded. The system can be programmed to operate automatically under computer control such that reversal of the flow through the geothermal system does not shock or damage the equipment or buried piping. | ||||||
| 186 | Fluid flow computation, visualization, and analysis | US12130798 | 2008-05-30 | US07880883B2 | 2011-02-01 | Murat Okcay; Bilgehan Uygar Oztekin |
| This document discusses, among other things, systems, devices and methods for fluid flow analysis for example, in an education environment. The light source, for example, a laser, is housed to illuminate particles in a fluid while minimizing exposure to the user. A control unit is provided that is remote from the fluid flow device. The fluid flow device further includes a removable fluid obstacle such that different fluid flow effects can be obtained. A computational unit is provided to perform computational fluid flow dynamics analysis on fluid flow models. The computed data can then be compared to the test data from the fluid flow analysis device. | ||||||
| 187 | Fluid flow visualization and analysis | US11974260 | 2007-10-12 | US20090107230A1 | 2009-04-30 | Murat Okcay; Bilgehan Uygar Oztekin |
| This document discusses, among other things, systems, devices and methods for fluid flow analysis for example, in an education environment. The light source, for example, a laser, is housed to illuminate particles in a fluid while minimizing exposure to the user. A control unit is provided that is remote from the fluid flow device. The fluid flow device further includes a removable fluid obstacle such that different fluid flow effects can be obtained. | ||||||
| 188 | METHOD AND APPARATUS FOR AERODYNAMIC/HYDRODYNAMIC TESTING OF A MODEL | US11565465 | 2006-11-30 | US20070186638A1 | 2007-08-16 | Ernest HANFF; Xing HUANG |
| An aerodynamic or hydrodynamic test apparatus that permits all air to be evacuated from the test enclosure, such that no free liquid surfaces remain. This permits more accurate testing of structures, particularly at low Reynolds numbers. The apparatus includes a seal that allows the elimination of a liquid free surface. The seal is disposed in a slit on an upper surface of the enclosure and can include one or more inflatable sealing members. The upper surface of the enclosure is preferably sloped upwardly towards the seal to prevent the entrapment of air bubbles within the enclosure. A method of testing using such an apparatus is also disclosed. | ||||||
| 189 | Method for determining local inner and outer boundary layer length scales from drag measurements in high Reynolds number turbulent flows | US11015805 | 2004-12-20 | US07040158B1 | 2006-05-09 | William L. Keith; Kimberly M. Cipolla |
| A method is presented for determining inner and outer boundary layer length scales from a succession of drag measurements of a cylindrical body in order to estimate flow noise and for computational modeling of the dynamics of towed arrays in a fluid medium. A succession of measurements of the total drag on a cylinder under tow at uniform known conditions (flow speed, fluid density, fluid viscosity, cylindrical body geometry) is taken. After each measurement, the cylinder is truncated by a fixed amount, and the process is repeated for the length of the cylinder. The measurements provide a spatially and temporally averaged measure of the mean wall shear stress and momentum thickness, from which the inner and outer length scales can be determined. The inner and outer boundary layer length scales may then be used for estimation of flow noise on towed cylindrical bodies and arrays. | ||||||
| 190 | Incremental pressurization fluctuation counter and methods therefor | US10377273 | 2003-02-27 | US06959605B2 | 2005-11-01 | Shawn R. Comstock; George R. Melvick; Alan L. Godfrey |
| Apparatus for repeatedly indicating incremental pressure fluctuations and methods employing same are disclosed. A chamber may be sealed at an initial pressure and configured to respond to a pressure difference between the initial pressure and subsequent pressure within a container. The container may be filled via a valve mechanism exhibiting a first operational state that may allow for entry of material into the container while sealing the chamber at the initial pressure of the container as it began to be filled. A movable element communicating with the sealed chamber and the container may respond to a pressure differential therebetween, thus causing an indicator to indicate an incremental pressure fluctuation. The valve mechanism may exhibit a second operating state that may allow for the chamber and container pressures to be substantially equalized. | ||||||
| 191 | Personal-watercraft testing apparatus | US10305730 | 2002-11-26 | US06920782B2 | 2005-07-26 | Masatoshi Murakami; Yasuo Torii |
| Personal watercraft to be test is set in a water tank. Water flow guide plate is positioned, rearward of the stern of the watercraft, for guiding a water jet from the watercraft to make a U-turn toward a front portion of the watercraft. Vertical partition plate is positioned, centrally of the width of an underwater portion of the tank, for directing the water jet to horizontally circulate around the partition plate. In another example, water flow guide plates are provided, at four corners of the underwater portion, for sequentially guiding the water jet from the watercraft to form a vertical circular water flow, and a horizontal partition plate is provided, centrally of the height of the underwater portion, for directing the water jet to vertically circulate around the partition plate. | ||||||
| 192 | INCREMENTAL PRESSURIZATION FLUCTUATION COUNTER AND METHODS THEREFOR | US10377273 | 2003-02-27 | US20040250626A1 | 2004-12-16 | Shawn R. Comstock; George R. Melvick; Alan L. Godfrey |
| Apparatus for repeatedly indicating incremental pressure fluctuations and methods employing same are disclosed. A chamber may be sealed at an initial pressure and configured to respond to a pressure difference between the initial pressure and subsequent pressure within a container. The container may be filled via a valve mechanism exhibiting a first operational state that may allow for entry of material into the container while sealing the chamber at the initial pressure of the container as it began to be filled. A movable element communicating with the sealed chamber and the container may respond to a pressure differential therebetween, thus causing an indicator to indicate an incremental pressure fluctuation. The valve mechanism may exhibit a second operating state that may allow for the chamber and container pressures to be substantially equalized. | ||||||
| 193 | Thrust measurement system for small planing watercrafts | US10462438 | 2003-06-16 | US06691635B2 | 2004-02-17 | Masatoshi Murakami; Yasuo Torii; Tomoyasu Katayama |
| A thrust measurement system includes a water pool for receiving therein a watercraft in a floating condition, a bow holding apparatus disposed on an edge portion of the water pool for holding a bow of the watercraft, a thrust measurement device mounted in the bow holding apparatus, and an anchoring device spanning between an edge of the water pool and a hull of the watercraft for anchoring the watercraft in position against swinging movement about the bow. In order to permit free rise and fall of the bow of the watercraft, the bow holding apparatus has a floating structure that can move freely in a vertical plane. | ||||||
| 194 | Water-flow testing apparatus | US09757186 | 2001-01-09 | US06561048B2 | 2003-05-13 | Thomas Phillip Schumacher; David Wayne Meece; Steven Craig Mertz |
| A water-testing apparatus tests an article such as a turbine airfoil component having at least two water flow passage article inlets. The apparatus includes an apparatus body having a water inlet, and an attachment head integral with the apparatus body. The attachment head includes a holder that receives the article therein in sealing contact with an article seal, and at least two ports, each port being in registry with at least one of the at least two water flow passage article inlets. A water flow controller within the apparatus body has a controller inlet in water-flow communication with the water inlet, at least two controller outlets, each controller outlet being in water-flow communication with one of the ports of the attachment head, and a flow-control valve disposed in a water flow path between the controller inlet and the controller outlets. The flow-control valve is controllable to controllably connect a single one of the controller outlets at a time to the controller inlet. | ||||||
| 195 | Method for dimensioning an elastic structure subjected to a fluid in motion | US09516164 | 2000-02-29 | US06553325B1 | 2003-04-22 | Cédric Le Cunff |
| The invention is a method for dimensioning or adapting an elastic structure immersed in a fluid in motion, the structure having a length Lt. The method comprises: a) the natural excitation modes of the structure and their number N are defined; b) for at least a given time t for an excitation mode of the structure, the various holding zones LR over length Lt and, for each holding zone, the excitation force FR corresponding to the excited natural mode r are determined; c) step b) is carried out for all the natural modes defined in step a); and d) the vibration amplitude response A of the elastic structure over part of length Lt is determined. | ||||||
| 196 | Countermeasure hovering test fixture | US09506934 | 2000-02-18 | US06502457B1 | 2003-01-07 | Neil J. Dubois; William S. Wilkinson |
| A test fixture for testing hovering performance of a tailcone of a countermeasure device is disclosed. The tailcone includes a motor and a propeller which is driven by the motor. The test fixture includes an upper support device, a lower support device, at least one cable connected between the upper and lower support devices and a connection device which slidably attaches the tailcone to the at least one cable, thereby restricting movement of the tailcone along the at least one cable. The upper support device is supported above a water-filled tank, the lower support is disposed in the water-filled tank and the hovering capability of the tailcone is tested by operating the tailcone in the tank. The connection device includes a number of extensions affixed to the tailcone. The extensions each include a clasp spaced from the tailcone. The clasps, are slidably joined along the cables, thereby attaching the tailcone to the cables. The fixture further includes a winch attached to the upper support device, wherein one of the cables is wound onto the winch. The winch retracts the attached cable, thereby pulling the lower support device from the tank. | ||||||
| 197 | Drag determining apparatus | US901493 | 1992-06-19 | US5301541A | 1994-04-12 | Daniel D. Joseph; Francis J. Marentic; Clement A. Nelson |
| An apparatus and method for determining the effect of the configuration of an outer surface of an object on the drag of the object. The apparatus comprises a housing, an inner block suspended in the housing, a motor for rotating the housing, and a torquemeter. The inner block is connected to the torquemeter by a suspending rod and universal joint. The method comprises attaching a layer of material having a desired surface configuration to the inner block and to the housing, filling the housing with a fluid, and driving the motor so that the housing is rotated. The magnitude of the torque on the inner block is then measured by the torquemeter. The rate of rotation of the housing and the temperature of the water are monitored. | ||||||
| 198 | Transient impeller test facility | US632709 | 1990-12-24 | US5078009A | 1992-01-07 | Paul J. Lefebvre |
| A system is described for testing a pump or a turbine impeller under transient operating conditions in a fluid flow. The system provides simultaneously, as a function of time, user defined impeller speeds, fluid flow rate and rise in fluid pressure so as to simulate real conditions. This information can be used to analyze the performance of existing impellers or for designating new impellers. | ||||||
| 199 | Atmospheric controlled video simulation system | US833158 | 1986-02-27 | US4817039A | 1989-03-28 | Walter Frost |
| The assembly performs the method for monitoring and predicting gaseous pollutant cloud drift and dispersion across complex terrain resulting from the site a source or potential source of pollution. Cloud drift and dispersion simulation information is produced for the earth surface terrain site under a wide range of simulated atmospheric conditions. The cloud drift and dispersion simulation information is then recorded and stored for later retrieval. The prevailing environmental conditions are monitored at the actual terrain site. As the time for the formation of a cloud of material such as an exhaust plume of a flight vehicle or movement of toxic gas is anticipated, information is selected from the recorded drift and dispersion simulation information in response to the preselected environmental conditions monitored at the actual terrain site. Thus, the selected information is displayed to predict and monitor the cloud drift and dispension at the actual terrain site on a real-time basis under prevailing environmental conditions. In a specific embodiment, an interactive video display mechanism is responsive to the prevailing environmental atmospheric conditions at the actual terrain site for displaying selected video images of simulated cloud drift and dispersion information. | ||||||
| 200 | Fluid flow monitoring | US124107 | 1987-09-23 | US4816763A | 1989-03-28 | Donald B. Longmore |
| The flow pattern of a gas or a liquid around a shaped object which is non-magnetic and is either NMR opaque or NMR translucent is observed by placing the shaped object in a duct in the working volume of an NMR imaging system and streaming a gas or a liquid which is NMR opaque or NMR translucent through the duct so that it deflects around the shaped object to create a flow pattern, and effecting NMR image reconstruction of the flow pattern for observation thereof. | ||||||
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