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JP2002228542 |
To provide an air current blowing device having an improved reduction effect to a background noise.As for the air current from an air current blowing part 38, a fast flow of a main current is guided to the outside by a first guide part 3...
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JP2002214069 |
To provide a wind resistance testing device using no wind tunnel and a method for wind resistance test by which the stability of the wind resistance of a model which is an object to be tested for wind resistance can be confirmed.The wind...
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JP2002206987 |
To manufacture a wind tunnel test model, in which many small holes opened on the surface of a wing and passages communicating the small holes with a wing root are arranged so as not to interfere with each other, at a low cost.This wind t...
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JP2002195909 |
To provide a system for actively preventing separation capable of improving the response speed and control effect of the active prevention for the separation.A diffuser, the angle of which can be adjusted, is allocated at the downstream ...
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JP3324169 |
PURPOSE: To reduce deterioration of a constrictor disk due to heat by improving the efficiency of cooling of the constrictor disk by cooling water. CONSTITUTION: In a constrictor type arc heater having a construction wherein a constricto...
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JP3324177 |
PURPOSE: To protect an O ring against heat by preventing an insulating member from becoming heated and at the same time, reduce a work load in the fabrication of an activation gas induction flow path. CONSTITUTION: The constrictor-type a...
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JP2002168728 |
To prevent an air current from being disturbed by fixing means for fixing blade elements to an elastic spar in the case of a model for flutter test.A test wing W is equipped with the elastic spar 11 imitating the elasticity of an actual ...
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JP2002168727 |
To enhance the accuracy of a test wing constructed by fixing a plurality of blade elements to an elastic spar in case of a model for flutter test.The test wing W is equipped with the elastic spar 11 imitating the elasticity of an actual ...
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JP2002148141 |
To provide a device and method for a wind tunnel test allowing measurement of a wind environment around a model or the periphery of the model in a short time including turbulence intensity for reducing a measurement time and costs.This w...
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JP3298343 |
PURPOSE: To detect the displacement of a sting fixing frame upon application of a calibration force and calibrate a wind tunnel balance while keeping the relative position between the frame and a carry body within a predetermined range. ...
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JP3300730 |
PURPOSE: To forcibly uniform a boundary layer which is not uniform in a direction perpendicular to an axis and impress a uniform thermal load in both axial directions, by setting a plurality of holes penetrating at a wall surface of a no...
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JP2002107263 |
To provide a device capable of generating a wind more close to natural storm, or a storm and pulsating wind generator capable of simultaneously and suddenly changing the wind direction and wind speed.This storm and pulsating wind generat...
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JP2002089368 |
To provide a support device constituted to study behavior of an flying body with an engine in a wind tunnel at the time of igniting an engine and capable of adjusting a position of the flying body at real time to simulate a trajectory or...
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JP2002082014 |
To accurately measure non-stationary aerodynamic force in a wind tunnel test of a model of a various construction member or the like, by removing influence of extremely large inertial forces acting simultaneously.This measuring device co...
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JP2002082013 |
To provide a model experiment method of tunnel pressure wave that exactly simulates a semi-infinitely long or infinitely long tunnel without inlet or outlet at low cost when an experiment is performed using a model tunnel with relatively...
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JP2002082012 |
To provide a silencing facility having an improved sound reduction effect as a whole, by preventing airflow from degrading the sound reduction effect in a resonant chamber.This silencing facility comprises a passage 4 for jet airflow par...
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JP2002071702 |
To provide a current distribution measuring method which enables measuring of the size of an air current at positions maintaining simultaneousness and an air current detection part which can measure an air current distribution in an arbi...
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JP2002071508 |
To provide an impact type wind tunnel equipment which is low in cost and compact and can accelerate gas to an arbitrary velocity.The impact type wind tunnel equipment 1 sucks dry air in a dry air chamber 7 with a vacuum tank 5 for accele...
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JP3285762 |
To make it possible to calculate the maximum value of the unit-time average concentration of a tracer gas simply by dividing the fluctuation range of the wind direction in the direction of a main airflow, obtaining the unit-time average-...
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JP3285773 |
To obtain an estimation method in which a maximum average ground-surface tracer gas concnetraiton per hour is estimated on the basis of the measured value for three minutes of the average gas concentration of a tracer gas when the point ...
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JP3285781 |
To shorten the schedule for manufacturing a topographical model and to reproduce the topographical model accurately in remanufacturing by employing a traverser moving on the material block for the topographical model under control of com...
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JP2002062215 |
To provide a wind tunnel sound measuring device capable of setting the size of measuring tunnels according to the measuring content, eliminating a useless space and reducing the size and a cost.Box-shaped auxiliary measuring tunnels 32a ...
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JP2002058993 |
To efficiently blow ions generated in a wind tunnel to the outside of the wind tunnel.This ion wind generator has a discharge device 3 which generates ions within the wind tunnel 1, an air blasting device 2 which generates the air flow h...
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JP2002048672 |
To provide an aerodynamic force measuring apparatus and method which enable measuring of a non-.steady aerodynamic force at a higher accuracy with a load cell of a relatively small capacity in any case where an aerodynamic force is large...
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JP3272593 |
To make it possible to simulate high speed phenomenon by a greatly decelerated test and to facilitate the solution of the phenomenon and the verification of countermeasure by measuring the aerodynamic phenomenon when a model for test is ...
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JP2002022597 |
To provide an airflow visualization apparatus being excellent in portability (small, power-saving and lightweight) and having an improv increased degree of freedom of its attitude in use.The airflow visualization apparatus includes a bod...
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JP2001356067 |
To achieve a higher accuracy of measurement data concerning a fluid tester such as a tester for an air tunnel.In the fluid tester for testing effect of a fluid pressure on mechanical members 3 and 4, a measuring means 2 is provided to me...
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JP3262873 |
PURPOSE: To provide a method and a device for measuring drag and lift by which the drag coefficient and lift coefficient of a golf ball can be easily measured through its simulation. CONSTITUTION: This measuring device is mainly composed...
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JP2001324409 |
To obtain a wind tunnel test device capable of simulating an actual running test.A wind tunnel measuring part 7 where wind flows and a motion device 9 are provided. The motion device 9 has a vehicle mount stage 11 and a stage driver 12 f...
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JP3247228 |
PURPOSE: To enable the analysis of the flow of fluid which has been difficult by visual observation. CONSTITUTION: An image input means 21 inputs plural images continously photographing the flow of fluid. By using this image, a differenc...
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JP2001305012 |
To suppress the vibration of a model under ventilation in a vibration suppressing device for wind tunnel test model. The base of a sting 11 is fixed to the fixing side and the model 10 is fixed to its tip. Pairs of left/right vibration s...
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JP3240426 |
PURPOSE: To achieve the measurement unnecessary to have a tube wiring to rooms of a building to be measured from a measuring hut or the like simply and handily and to reduce the measuring error. CONSTITUTION: A gas cylinder 1 is filled w...
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JP3239740 |
To sufficiently catch a transitional air input state for a vehicle at the time when outrunning is performed and being outrun is executed by calculating an aerodynamic characteristic value acting on a vehicle model on the basis of each de...
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JP2001281109 |
To measure a rotational frequency and a torque, and to simulate a flow characteristic of an automobile and sound concentration action of the automobile in a wind tunnel, vibration analysis, noise generation, and material stress in an ext...
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JP3229157 |
PURPOSE: To provide a boundary-layer turbulent flow generation apparatus which can simulate a natural wind used to obtain aerodynamic performance data which is necessary for the wind-resistant stability of a structure. CONSTITUTION: Side...
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JP3225842 |
To generate a varied wind having a desired frequency for the purpose of measurement experiment for wind noise through the air of vehicle. A nozzle means 10 consists of a plurality of sonic nozzles, and the blowing speed of a blowing nozz...
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JP2001235393 |
To realize a test without trouble by preventing a disturbance generated in a wind tunnel from propagating to a measuring portion.This method consists of forming a stratified flow provided with a predetermined temperature distribution in ...
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JP2001235394 |
To provide a wind tunnel capable of efficiently displaying the effect of a slotted wall, properly inhibiting wall interference, and performing measurement with high precision, even when the state of a test-piece in a measuring portion ch...
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JP3224062 |
PURPOSE: To provide a waveform control apparatus and the waveform control method for a shock wind-tunnel which can elongate the duration of steady air flow and can form the air flow accompanying high-frequency pressure fluctuation by con...
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JP3224063 |
PURPOSE: To provide an input method and the input apparatus, which can improve the measuring accuracy for a compact model whose rear end part has the discontinuous shape in the step pattern in the experiment in a supersonic wind tunnel. ...
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JP3223852 |
To facilitate the experiment of a heavy-weight model and make measurable a fine aerodynamic force working on models, by providing a vibrating device to vibrate a model, which is provided with a vibrating rod for supporting a model suppor...
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JP3223263 |
To easily confirm and test the performance of a flying object on the ground by a method wherein a change in the position of the two-axis translation of the flying object and a change in the position of its three-axis are simulated, the p...
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JP2001214728 |
To provide silencing equipment effectively reducing both low frequency noise and higher frequency noise while an installation space and the whole equipment are miniaturized.This silencing equipment comprises a passage 4 for airflow parti...
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JP2001208643 |
To freely vary the combination of functional components which constitute a wind tunnel device, by rendering each functional component movable.The wind tunnel device comprises a fan part 1 for creating an air current F within a wind tunne...
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JP2001194265 |
To measure a large number of pressure values in a short time by directly embedding a sensor in the surface of a wing and converting the pressure variations into electric signals in a pressure measuring method for wind tunnel tests. An ad...
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JP3212473 |
PURPOSE: To make the flow around an object clear to be visualized by arranging the object in a transparent flow formed nearly along the center of the surface contiguous to an objective region to be visualized and lamps on the inside of t...
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JP3207736 |
To differently control wind direction according to the height from the floor surface of a wind path within a wind tunnel. An upper wing 2a and a lower wing 2b have exclusive rotary control mechanisms 1a and 1b to feed air flow closer to ...
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JP3206749 |
To provide a compressor testing device capable of simulating a practical operation state while energy loss is reduced. The compressor testing device contains a test chamber 10; a gas supply means 20 for supplying nitrogen gas having spec...
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JP3207707 |
PURPOSE: To provide a turbulent-flow grating, which generates a turbulent flow in a wind path in correspondence to the purpose of a wind tunnel test. CONSTITUTION: This apparatus comprises the following gratings. A large-element turbulen...
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JP3205764 |
PURPOSE: To enable a large heat-resistance material and a sample such as a cooling structure to be heated for achieving an evaluation test by allowing a high-temperature high-speed gas to be discharged by receiving supply of a fuel and a...
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