LFA Visualisation de Flux Laminaire et Unité d'Analyse

LAMINAR FLOW VISUALIZATION AND ANALYSIS UNIT - LFA

Unit: LFA. Laminar Flow Visualization and Analysis Unit

SYSTEMES INNOVANTS

The Laminar Flow Visualization and Analysis Unit, "LFA", allows a complete study of the two-dimensional problems associated with the laminar flow by the visualization of the different models of flow, which can be observed thanks to an efficient system of colored liquid injection.

Voir description générale

NOUVELLES LIÉES

Description Générale

The Laminar Flow Visualization and Analysis Unit, "LFA", allows a complete study of the two-dimensional problems associated with the laminar flow by the visualization of the different models of flow, which can be observed thanks to an efficient system of colored liquid injection.

It is an improved version of the Hele-Shaw apparatus.

It is a floor standing unit, with a wide work surface to an appropriate height. That wide work area (605 x 900 mm) includes eight sinks and eight sources. The work section consists of two glass sheets, separated by space bars at a certain distance.

It has a fiberglass tank at the input and output of the work section and control valves.

The glass sheets are separated by space bars, at a distance that can be adjusted as required, to obtain an exact study of the laminar flow around different hydrodynamic models. The bottom plate has a grid printed to make the flow visualization easier, with eight sinks placed along the central line of the glass sheet in a cross-shape.

It has a tank connected to a dye injection system, which consists of a system of needles placed at the input of glass sheet.

Des exercices et pratiques guidées

EXERCICES GUIDÉS INCLUS DANS LE MANUEL

Ideal flow around immersed bodies:

  1. Ideal flow around a cylinder.
  2. Ideal flow around a surface.
  3. Ideal flow around a bluff body.

Ideal flow in channels and edges:

  1. Ideal flow in a convergent channel.
  2. Ideal flow in a divergent channel.
  3. Ideal flow through a 90º bend.
  4. Ideal flow through a sudden contraction.
  5. Ideal flow through a sudden broadening.
  6. Replacement of a streamline by a solid boundary.

Ideal flow associated to sinks and sources.

  1. Formation of a Rankine half-body.
  2. Formation of a Rankine oval.
  3. Superposition of sinks and sources.

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