SU887967A1 - Device for simulating level drop on the model - Google Patents
Device for simulating level drop on the model Download PDFInfo
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- SU887967A1 SU887967A1 SU802915299A SU2915299A SU887967A1 SU 887967 A1 SU887967 A1 SU 887967A1 SU 802915299 A SU802915299 A SU 802915299A SU 2915299 A SU2915299 A SU 2915299A SU 887967 A1 SU887967 A1 SU 887967A1
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- SU
- USSR - Soviet Union
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- model
- tray
- shield
- level
- drive
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Description
Изобретение относится к лабораторному гидротехническому оборудованию и касается устройства для образования перепада уровней при экспериментальных исследованиях моделей гидротехнических сооружений, работающих в условиях разностей уровней верхнего и нижнего бьефов в. случае неполного перекрытия створа. 'The invention relates to laboratory hydraulic equipment and relates to a device for the formation of level differences during experimental studies of models of hydraulic structures operating in the conditions of differences of levels of the upper and lower pools c. case of incomplete overlap of the alignment. ''
Известно устройство для имитации прерывной волны, включающее бассейн 1 с каналом и затвор с жесткой рамой между ними П1.A device for simulating a discontinuous wave, including a pool 1 with a channel and a shutter with a rigid frame between them P1.
Известно также устройство Для имитации перепада уровней в створе модели, включающее лоток и затвор с приводом [2] .A device is also known for simulating the difference in levels in the alignment of the model, including a tray and a shutter with a drive [2].
Однако эти конструкции сложны в изготовлении, кроме того они не учитывают конфигурацию сооружения, особен- . ности подхода потока к ним, а также наличие уровня воды в нижнем бьефе в момент разрушения напорного фронта, плотин.However, these designs are difficult to manufacture, in addition, they do not take into account the configuration of the structure, especially. the fact that the flow approaches them, as well as the presence of a water level in the downstream at the time of the destruction of the pressure front, dams.
Цель изобретения — повышение точности моделирования.The purpose of the invention is to improve the accuracy of modeling.
Достигается это тем, что завтор установлен в нижнем бьефе модели и выполнен в ви^е двух щитов, соединенных между собой посредством шарнира, причем нижний щит закреплен на дне лотка с наклоном в сторону движения потока, а верхний соединен с приводом.This is achieved by the fact that the heater is installed in the lower pool of the model and is made in the form of two shields connected by a hinge, with the lower shield fixed to the bottom of the tray with an inclination in the direction of flow, and the upper one connected to the drive.
На фиг. 1 изображено устройство для имитации перепада уровней в створе модели, продольный разрез; на фиг. 2 - то же, в плане.In FIG. 1 shows a device for simulating a level difference in the alignment of the model, a longitudinal section; in FIG. 2 - the same in plan.
В конце лотка 1 устанавливается жесткий водонепроциаемый затвор, состоящий из двух щитов. Нижний неподвижный щит 2 жестко соединен со стенками и дном лотка 1 и наклонен в сторону движения потока. Верхний подвижный щит 3 шарниром 4 соединен с верхней кромкой щита 2. В месте установки верхнего щита предусмотрены уплотняющие диафрагмы. Верхний щит 3 гибким тросом 5 соединен с приводом 6. В лотке 1 установлена модель 7. Модель 7 и щит 3 делят лоток 1 на отсеки 8, 9 и 10. Модель 7 имеет проран 1 1 .At the end of tray 1, a hard waterproof shutter is installed, consisting of two shields. The lower fixed shield 2 is rigidly connected to the walls and the bottom of the tray 1 and tilted in the direction of flow. The upper movable shield 3 by a hinge 4 is connected to the upper edge of the shield 2. At the installation site of the upper shield, sealing diaphragms are provided. The upper shield 3 is connected by a flexible cable 5 to the drive 6. Model 7 is installed in tray 1. Model 7 and shield 3 divide tray 1 into compartments 8, 9, and 10. Model 7 has a hole 1 1.
Устройство работает следующим образом.The device operates as follows.
При закрытом (поднятом) щите 3 производится наполнение лотка 1,как перед моделью 7, так и за моделью до уровня, несколько превышающего рабочий, отсеки 8 и 9 оказываются заполненными водой. В отсек 10 вода не поступает. При помощи привода 6 резко опускают щит 3. Происходит быстрое падение уровня в отсеке 9, а так же медленное понижение уровня в отсеке 8, зависимое от скорости движения привода 6, превышение уровня заполнения лотка 1 над рабочим горизонтом, объема отсека 9 и ширины прорана I 1 в напорном фронте модели 7.When the shield 3 is closed (raised), tray 1 is filled, both in front of model 7 and behind the model to a level slightly higher than the working one, compartments 8 and 9 are filled with water. No water flows into compartment 10. With the help of drive 6, shield 3 is sharply lowered. There is a rapid drop in level in compartment 9, as well as a slow decrease in level in compartment 8, depending on the speed of movement of drive 6, exceeding the fill level of tray 1 above the working horizon, the volume of compartment 9 and the width of the aperture I 1 in the pressure front of model 7.
Устройство позволит обеспечить упрощение образования гидропотока в створе модели, учесть при экспериментальных исследованиях влияния конфи гурации модели на поток, а следовательно повысить и точность моделирования .The device will make it possible to simplify the formation of hydroflow in the alignment of the model, to take into account during experimental studies the influence of the configuration of the model on the flow, and therefore to increase the modeling accuracy.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802915299A SU887967A1 (en) | 1980-04-25 | 1980-04-25 | Device for simulating level drop on the model |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802915299A SU887967A1 (en) | 1980-04-25 | 1980-04-25 | Device for simulating level drop on the model |
Publications (1)
Publication Number | Publication Date |
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SU887967A1 true SU887967A1 (en) | 1981-12-07 |
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ID=20891953
Family Applications (1)
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SU802915299A SU887967A1 (en) | 1980-04-25 | 1980-04-25 | Device for simulating level drop on the model |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020147550A1 (en) * | 2019-01-14 | 2020-07-23 | 中国科学院、水利部成都山地灾害与环境研究所 | Shaped cross-section test water chute design method and application thereof |
-
1980
- 1980-04-25 SU SU802915299A patent/SU887967A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020147550A1 (en) * | 2019-01-14 | 2020-07-23 | 中国科学院、水利部成都山地灾害与环境研究所 | Shaped cross-section test water chute design method and application thereof |
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