SU581435A1 - Method of measuring speed characteristics of fluid stream - Google Patents
Method of measuring speed characteristics of fluid streamInfo
- Publication number
- SU581435A1 SU581435A1 SU7602380705A SU2380705A SU581435A1 SU 581435 A1 SU581435 A1 SU 581435A1 SU 7602380705 A SU7602380705 A SU 7602380705A SU 2380705 A SU2380705 A SU 2380705A SU 581435 A1 SU581435 A1 SU 581435A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- fluid stream
- measuring speed
- speed characteristics
- time
- particles
- Prior art date
Links
Landscapes
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Description
Изобретение относитс к технике измерений скоростных параметров потоков жидкости бесконтактными средстваьш .The invention relates to a technique for measuring the velocity parameters of fluid flows by non-contact means.
В известных оптических анемометрических способах в реальном масштабе времени измер ютс только локальные скоростные характеристики потока ij .In the known optical anemometric methods, only the local velocity characteristics of the flow ij are measured in real time.
Измерение.полей скоростей проводитс ; известным способом кино-фотосъемки при затрате большого количества времени иiтруда на обработку полученных материалов .Speed field measurements are carried out; in a well-known way of film-photography at the cost of a large amount of time and labor for processing the received materials.
Цель изобретени - уменьшение .тру-, доемкости процесса, измерени пол скоростей потока-жидкости.The purpose of the invention is the reduction of the process, the extension of the process, the measurement of the flow velocity field of the liquid.
Указанна цель, достигаетс , тем,: по известно1 1у способу.измерени пол скоростей потока ,й йдкоати.. в.ктдачающе-г му визуализацию те 1ени спомощью взвешенных частиц,, их .регистрацию, .к определение координат в-, дискретныё моменты времени, нахождение траекторий движени частиц и определение скоростей по вайденныгд перемещени м за известный отрезок времени, регистрацию и определение координат движущихс в потоке частиц в дискретные моменты времени провод т путем периодического импульсного преобразовани изображений частиц исследуемой области потока в потенциальный рельеф на чувствительной .поверхности фотоэлектрическогоThis goal is achieved by the following: by the method of measuring the sex of flow velocities, ydkoati .. known visualization of those 1 with the help of suspended particles, their registration, determination of coordinates in, discrete points in time , finding the trajectories of particle motion and determining the velocities by widened displacements over a known period of time, recording and determining the coordinates of particles moving in a stream at discrete instants of time is carried out by periodic impulse transformation of particle images emoy flow field in a charge pattern on the sensitive photoelectric The surface
преобразовател и измерени временныг интервалов межДу синхроимпульсами 1и сигналами, сформированньили при анализе видеоимпульсов от частиц, в процессе сканировани и одновременного стирани потенциального рельефа.the transducer and time interval measurement between clock pulses 1 and signals were formed when analyzing video pulses from particles, in the process of scanning and at the same time erasing the potential relief.
На чертеже представлена структурна схема устройства, реализующего предлагаемый способ.The drawing shows a block diagram of the device that implements the proposed method.
Исследуемый поток визуализируют с помощью светлых сферических частицThe test stream is visualized using bright spherical particles.
нейтральной плавучести и освещают щелеёым - сточником света 1. Изображение исследуемой плоскости потока при помощи , объектива 2 проецируетс через свободную поверхность и.пи ограничива.ю/дую -поток .про.зрачную стенку на фотока . телевизионной передающей трубки 3 Дл фиксации мгновенных положетптй .-гастиц примен ют либо импульсный источник света, либо источник непрерывногоneutral buoyancy and illuminate with a slit - light source 1. The image of the flow plane under study is projected through the free surface of the objective 2 with the help of lens 2 and limiting / blowing - the streaming transparent wall on the photo. a television transmission tube 3. To fix the momentary .pastits instantaneous, either a pulsed light source or a continuous source is used.
излучени в .сочетании с электроннымradiation in combination with electronic
затвором. При экспонировании на светочувствительной поверхности трубки возникает потенциальный репъеф.shutter. When exposed to the photosensitive surface of the tube, a potential rep-fef occurs.
Определение координат частиц в поле зрени камеры производ т с испопъDetermination of the coordinates of the particles in the field of view of the camera is made with
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7602380705A SU581435A1 (en) | 1976-07-07 | 1976-07-07 | Method of measuring speed characteristics of fluid stream |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7602380705A SU581435A1 (en) | 1976-07-07 | 1976-07-07 | Method of measuring speed characteristics of fluid stream |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU581435A1 true SU581435A1 (en) | 1977-11-25 |
Family
ID=20668635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU7602380705A SU581435A1 (en) | 1976-07-07 | 1976-07-07 | Method of measuring speed characteristics of fluid stream |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU581435A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006098658A1 (en) * | 2005-03-14 | 2006-09-21 | Federalnoe Gosudarstvennoe Unitarnoe Predprijatie Central Aerohydrodynamic Institute (Fgup Tsagi) Named After Prof N.E.Zhukovsky | Method for visualising a gas or liquid flow on an object surface |
-
1976
- 1976-07-07 SU SU7602380705A patent/SU581435A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006098658A1 (en) * | 2005-03-14 | 2006-09-21 | Federalnoe Gosudarstvennoe Unitarnoe Predprijatie Central Aerohydrodynamic Institute (Fgup Tsagi) Named After Prof N.E.Zhukovsky | Method for visualising a gas or liquid flow on an object surface |
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