SU1619093A1 - Laboratory hydraulic pool - Google Patents

Abstract

The invention relates to laboratory equipment for model hydrodynamic testing of various devices and structures exposed to currents and waves. The purpose of the invention is to improve the accuracy of hydraulic studies by simulating various configurations of the pool bottom. The pool consists of a tank 1, a bulkhead 3, a lifting platform made of movable plates 14, a propulsion unit 4 and a gate valve 9 located between the bottom 8 of the tank 1 and the bulkhead 3, the roller generator 10, the force-collector 12 and the wave suppressor 13. The plates 14 are interconnected with each other plates and brackets with holes and are located on racks 15, which provides a change in the height position of the plates and the installation angle to the horizon. This makes it possible to simulate different bottom configurations and long waves due to the regular vertical movement of the pillars 15. 2 Cp f-ly, 2 ml. SO with

Description

FIG. one

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The invention relates to laboratory equipment for model hydrodynamic testing of various devices and structures exposed to water streams and waves.

The purpose of the invention is to improve the accuracy of hydraulic studies by simulating various configurations of the pool bottom.

Figure 1 shows the pool, side view; figure 2 - node I in figure 1.

The laboratory basin consists of a tank 1, which is mounted on the frame 1. In the tank 1 between the side walls a horizontal bulkhead 3 is rigidly fixed, under which is placed the flow-forming propeller 4, made in the form of a propeller mounted in the guide 5, the screw stands on the shaft a gearbox 6 connected to an electric motor 7, the speed of which is adjustable, and the direction of rotation can be reversed. Between the bottom 8 of the container 1 and the bulkhead 3 is mounted a valve 9, fixed in the walls of the container 1.

Between the wave maker 10, located at one end of tank 1, and the end wall 11 of tank 1, a jet suppressor 12 is installed, smoothing the vortex components of the water flow, turning it into a stream close to laminar. A waveguider 13 is installed at the other end wall of the tank 1. To change the depth of the working part of the pool, change the longitudinal (along the pool) bottom profile and to form 10 waves longer than 10 waves from the wave maker, there is a lifting platform made of plates 14, the number of which is to create a complex bottom profile be at least three. The plates 14 are mounted above the bulkhead 3 on the uprights 15, passing through the holes in the bulkhead 3 and the bottom 8 and having a connection with the gearboxes 16. For the two adjacent plates 14, one gearbox 16 and two struts 15 are required. The gearboxes 16 are connected to reversible electric motors 17. A plate 18 is fixed on its plate 14, located at the jet protector 12, on its side, preventing water from flowing between the bulkhead 3 and the plate 14. Plates 14 have brackets 19 and 20 connected through axles 21.

The brackets 20 are formed with a slotted hole that allows one end of the plate 14 to slide along axis 21 when creating a broken bottom. The axles 21 are attached to the uprights 15. To prevent water from flowing between the plates 14, slotted slots are made in their ends, in which

flexible plates 22. The control of the uprights 15, the propeller 4 and the wave maker 10 is carried out via a control panel (not shown). Pool allows you to simulate

wave processes with different bottom profiles and depths, wave processes with the presence of water flow with different bottom profiles and depths, currents with different bottom profiles and depths, wave processes with opposite direction of flow and long waves.

In the simulation of the hydraulic mode, the filling height of the tank 1 with water remains inoculated. Pool depth and

the bottom profile is set using plates 14, which are moved vertically. The current about the tank 1 is created by the propeller 4. The direction and speed of rotation of the motor 4 determine the direction and speed

Flows in the tank 1. The flow rate can also be controlled by the valve 9, which, if necessary, completely blocks the water flow. Wave mode in the pool is set by the wave maker

10. Long waves are produced by means of a lifting platform made of plates 14. For this, plate 14 is moved by pillars 15 according to the wave law.

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Claims (3)

1. Laboratory hydraulic pool, which includes a tank installed on the frame, a lifting platform with supporting elements installed in a tank above its bottom, a wave driver and a wave extinguisher installed in the end parts of the tank, characterized in that, in order to improve the accuracy of hydraulic studies by simulating various configurations of the pool bottom, the lifting platform is made of separate plates arranged one after the other brackets and slotted transverse grooves on the ends and flexible plates placed in the grooves of adjacent plates, and the supporting elements are made in the form of racks with an axis in the upper part, mounted for vertical movement, with holes in the brackets of one end of the plates, and elongated slit-like holes in the brackets of the other end, in which the axis of the racks. 2. A pool according to claim 1, characterized in that it is provided with a horizontal bulkhead installed between the bottom of the tank and the platform, a flow-forming propulsor mounted under the wave generator between the bottom of the tank and the bulkhead, a gate fixed in the walls the tank and the tank installed between the bottom of the tank and the bulkhead and the jet trap between the end wall of the tank and the wave generator. 3. The pool according to claims 1 and 2, excluding the fact that it is equipped with actuators connected to the racks and made in the engine and gearbox side. 2