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Products  |  Fluid Mechanics  |  Fundamentals of Fluid Mechanics  |  HM 150.09
HM 150.09 Horizontal Flow from a Tank Show data sheet (pdf file) Print page
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

- determination of the contraction coefficient for

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



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

* 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
Fundamentals of Hydrodynamics

[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
- height: 510mm
- diameter: 190mm
- contents: approx. 13,5L
Inserts with rounded contour
- 1x diameter: 4mm
- 1x diameter: 8mm
Inserts with square contour
- 1x diameter: 4mm
- 1x diameter: 8mm
Point gauge, 8 movable rods
- length: 350mm
Dimensions and Weight
LxWxH: 865x640x590mm
Weight: approx. 27kg
Required for Operation
HM 150 (closed water circuit) or alternatively water connection and drain
Scope of Delivery
1 experimental unit
4 inserts
1 set of instructional material
Order Details

070.15009  HM 150.09  Horizontal Flow from

                                       a Tank

© 2005 G.U.N.T. Gerätebau GmbH