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 HM 150.09 Horizontal Flow from a Tank
 Technical Description

Hydrodynamics considers the relationship between the trajectory, the outlet contour and the outlet velocity during flow from tanks. These considerations have practical applications in hydraulic engineering or in the design of bottom outlets in dams, for example.
HM 150.09 allows you to study and visualise the profile of a water jet. Additionally, the contraction coefficient can be determined as a characteristic for different contours.
The experimental unit includes a transparent tank, a point gauge and a panel for visualising the jet paths. An interchangeable insert is installed in the tank's water outlet to facilitate the investigation of various openings. Four inserts with different diameters and contours are provided along with the unit.
To visualise the trajectory, the issued water jet is measured via a point gauge that consists of movable rods. The rods are positioned depending on the profile of the water jet. This results in a trajectory that is transferred to the panel.
The tank contains an adjustable overflow and a scale. In this way, a precise adjustment and accurate reading of the fill level are possible. The experimental unit is positioned easily and securely on the work surface of the HM 150 base module. The water is supplied and the flow rate measured by HM 150. Alternatively, the experimental unit can be operated by the laboratory supply.
The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.

Learning Objectives / Experiments

- recording the trajectory of the water jet at different

outlet velocities
- study of how the level in the tank affects the outlet

velocity
- determination of the contraction coefficient for

different contours and diameters
- comparison of the actual and theoretical outlet

velocity

 Features

* Visualisation of  the trajectory of the outlet jet1
* Study of openings with different diameters and

contours1
* Determination of the contraction coefficient

 Available accessories
HM 150 -- Base Module for Experiments in Fluid Mechanics
 Alternative products
HM 150.12 -- Vertical Flow from a Tank
 Overview
Fundamentals of Hydrodynamics
 Specification [1] study of horizontal flows from tanks[2] determining the contraction coefficient for different outlet contours and diameters[3] tank with adjustable overflow and scale[4] four interchangeable inserts with different diameters and contours [5] point gauge with eight movable rods for visualisation of the jet path[6] white panel for recording the trajectory[7] flow rate determined by HM 150 base module[8] water supply using HM 150 base module or via laboratory supply Technical Data Tank- height: 510mm- diameter: 190mm- contents: approx. 13,5L Inserts with rounded contour - 1x diameter: 4mm- 1x diameter: 8mmInserts with square contour - 1x diameter: 4mm- 1x diameter: 8mmPoint gauge, 8 movable rods- length: 350mm Dimensions and Weight LxWxH: 865x640x590mmWeight: approx. 27kg Required for Operation HM 150 (closed water circuit) or alternatively water connection and drain Scope of Delivery 1 experimental unit4 inserts1 set of instructional material Order Details 070.15009  HM 150.09  Horizontal Flow from                                        a Tank