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Aerodynamics describes the behaviour of bodies during flow around or through bodies with a compressible fluid. The purpose of experiments in aerodynamics is familiarisation with and optimisation of drag and the flow field around a body. This knowledge has a significant influence on the development of means of transport (vehicles, ships, aircraft) and in architecture (skyscrapers, towers and bridges). Aerodynamics also plays a key role in the construction of pipelines and turbo machines. HM 225 offers – along with its accessories – typical experiments from the field of flow around, incident flow and flow through models, as well as further experiments in the field of steady incompressible flow. The trainer includes a radial fan, which can be used to generate flow velocities up to 40m/s. The speed is infinitely adjustable by using a frequency converter. A stabilisation tank with flow straightener ensures a consistent, low-turbulence and reproducible flow in the measurement section. A carefully shaped nozzle provides a largely homogeneous velocity distribution of the air flow. The accessory is attached using quick release fasteners and can be interchanged quickly and easily. Measuring points along the measurement section allow pressure and velocity measurements to be taken. The tube manometer, 16-fold (HM 225.01) is required to be able to show the pressures clearly. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments. |
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Learning Objectives / Experiments |
Together with appropriate accessories: experiments from the field of flow around bodies - velocity measurement of flows with Pitot tube - boundary layer analysis on a flat plate with flow along the plate - drag of bodies - demonstration of the Coanda effect - visualisation of streamlines Together with appropriate accessories: experiments from the field of steady incompressible flow - velocity measurement of flows with Pitot tube and Pitotstatic tube - free jets - flow in a pipe elbow - proof of Bernoulli's principle |
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Features
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* Flow velocities up to 40m/s possible1 * Homogeneous flow through the flow straightener and special nozzle contour1 * Matching accessories offer a wide range of experiments |
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Available accessories
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HM 225.01 -- 16-Tube Manometer
HM 225.02 -- Boundary Layers
HM 225.03 -- Bernoulli's Equation Apparatus
HM 225.04 -- Drag Forces
HM 225.05 -- Flow Around a Bend
HM 225.06 -- Coanda Effect
HM 225.07 -- Round Turbulent Jet Apparatus
HM 225.08 -- Visualisation of Streamlines
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Alternative products
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HM 170 -- Open Wind Tunnel
HM 220 -- Airflow Study Unit
HM 226 -- Wind Tunnel for Visualisation of Streamlines
HM 230 -- Flow of Compressible Fluids
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Overview
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HM 225 Aerodynamics Trainer
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Specification |
[1] aerodynamics experiments in the fields of flow around, incident flow and flow through models, as well as further experiments in the field of steady incompressible flow. [2] vertical measurement section with flow straightener and nozzle [3] radial fan infinitely variable via frequency converter [4] thermometer for measuring air temperature [5] accessory securely attached to HM 225 with quick release fasteners [6] tube manometer, 16-fold (HM 225.01) required [7] accessories for the field of flow around bodies: Boundary Layers (HM 225.02) Drag Forces (HM 225.04) Coanda Effect (HM 225.06) Visualisation of Streamlines (HM 225.08) [8] accessories for the field of steady incompressible flow: Bernoulli's Principle (HM 225.03) Flow in a Pipe Elbow (HM 225.05) Free Jets (HM 225.07) |
Technical Data |
Radial fan - power consumption: 0,37kW - max. flow rate: 15m³/min - nozzle exit cross-section: 50x100mm - max. flow velocity at the nozzle exit: 40m/s |
Dimensions and Weight |
LxWxH: 1.880x800x1.900mm Weight: approx. 220kg |
Required for Operation |
230V, 50/60Hz, 1 phase or 120V, 60Hz, 1 phase |
Scope of Delivery |
1 trainer 1 set of instructional material |
Order Details |
070.22500 HM 225 Aerodynamics Trainer
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