3B Air jet Laminator 1000758 Instruction Manual
- June 6, 2024
- 3B
Table of Contents
3B SCIENTIFIC® PHYSICS
Air jet (Laminator) 1000758
Instruction sheet
09/15 DML
- Pressure chamber
- Single nozzle
- Mounting stem
- Air outlet ring
Description
The air jet is used in conjunction with a blower to generate an almost uniform
flow of air, as required in experiments on fluid dynamics.
The plastic air-jet consists of a hemispherical pressure chamber equipped with
50 single tubular nozzles which are arranged parallel to one another. The
arrangement of the tubular nozzles has been specifically selected to ensure
that the airflow generated by the blower exits the pressure chamber with a
minimum of resistance and in such a way that the flow is evenly distributed
among the tubes. Air blows out of the nozzles at high speed such that the
moving flow is cylindrical in shape.
A ring runs around the ends of the nozzles and forms the actual outlet of the
jet. As a result of the high velocity of the airflow, the static pressure
around the nozzles is low. This means that surrounding air is sucked from the
sides and into the high-speed flow. The combination of the air emerging
directly from the nozzles and the air sucked in from the sides gives rise to a
flow of air that is largely uniform and laminar. Any differences in the
velocity of the airflow which initially occur locally around the tubes do not
have an adverse effect in most experiments and can hardly be detected at a
distance of approximately 200 mm from the air outlet.
The air jet is equipped with a mounting stem by which it can be attached to a
stand.
Technical data
| Air inlet opening: | 33 mm Ø |
|---|---|
| Air outlet ring: | 120 mm Ø |
| No. of individual nozzles: | 50 |
| Individual nozzles: | 4 mm Ø |
| Dimensions: | 255 mm x 150 mm Ø |
| Weight: | 350 g approx. |
Operation
In order to conduct the experiments, a blower (1000606 or 1000605) is
required.
The set of bodies for experiments on lift and drag (1000760) are ideally
suited as test objects.
The component scale (1000761) is used to measure lift and drag.
Use simple filament probes to investigate the course of the airflow. It is
very simple to construct a filament probe – take a thin wooden stick and tie
one or more threads at equal distances from one another.
- Use the single boss head (1002827) to fix the air jet vertically or horizontally to a stand rod (1002934).
- Use a table clamp (1002832) to set up the stand rod at the edge of the tabletop.
- Connect the air jet to the blower.
Sample experiments
- Using a filament probe to investigate the course of airflow
- Using a component scale to measure the lift on a wing surface
- Using the component scale to measure the drag force on a disc
- Determining the thrust of the air jet – experiment to model rocket and jet engines
3B Scientific GmbH ▪ Rudorffweg 8 ▪ 21031 Hamburg ▪ Germany ▪
www.3bscientific.com
Subject to technical amendments.
© Copyright 2015 3B Scientific GmbH
References
- Simulation and skills training for Medical Education - 3B Scientific
- Simulation and skills training for Medical Education - 3B Scientific
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