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Osborne Reynolds Apparatus

Osborne Reynolds Apparatus

Product Code : JA-FMAHLE-9955

The Osborne Reynolds Apparatus (SKU JA-FMAHLE-9955) is a floor-standing unit for the classic Osborne Reynolds experiment on laminar and turbulent flow. Liquid flows vertically through a precision-bore glass tube, and a fine dye stream shows the flow regime against a white background. JaincoLab supplies this Osborne Reynolds apparatus to engineering colleges and polytechnics for fluid mechanics practicals.

Specifications

Fluid enters a cylindrical constant head tank through a ring diffuser and stilling bed, then passes through a profiled bellmouth into the vertical glass tube inside a shroud; dye flows through a fine stainless steel tube controlled by a needle valve, and a globe valve in the base sets the flow. Tube bore and dimensions are confirmed on the quotation.

ProductOsborne Reynolds Apparatus
SKUJA-FMAHLE-9955
Test sectionVertical precision-bore glass tube inside a fabricated shroud with white background
InletCylindrical constant head tank with ring diffuser and stilling bed; profiled bellmouth entry
Dye systemFine stainless steel injection tube, needle valve on the dye reservoir; removable for cleaning
Flow controlNeedle-point globe valve in the base
Water supplyFrom a small-bore supply point via the flexible hose supplied
MountingFabricated steel support with levelling
Tube bore and dimensionsConfirmed on the quotation

Applications of the Osborne Reynolds apparatus

The Osborne Reynolds apparatus lets students watch the dye trace change from a straight line to a dispersed pattern as flow increases and calculate the Reynolds number at each regime, the core experiment on laminar and turbulent flow in fluid mechanics.

  • Observing laminar, transitional and turbulent flow
  • Determining the Reynolds number at the change of regime
  • Studying the effect of viscosity by changing fluid or temperature (external circuit not supplied)
  • Fluid mechanics practicals in civil, mechanical and chemical engineering courses

Scope of supply

The listing covers the apparatus with stilling bed, connecting hoses, an initial supply of dye and an instruction manual. Equipment for measuring the flow volumetrically or by weighing, and any circuit for changing fluid temperature, are not supplied. Accessories, spares and quantities are confirmed on the quotation.

Packing, MOQ and lead time

Minimum order quantity, lead time and packing are confirmed on each quotation for the number of units and the delivery destination. The apparatus is supplied by JaincoLab singly or with other flow visualisation units for colleges and tender orders.

Frequently asked questions

What is supplied with the apparatus?
The stilling bed, connecting hoses, an initial supply of dye and an instruction manual.

How is the flow rate measured?
Volumetrically or by weighing; the measuring equipment is not supplied.

Is the tube bore listed?
No. The tube bore and overall dimensions are confirmed on the quotation.

What should a quotation request include?
Send the SKU JA-FMAHLE-9955, the quantity and the delivery destination.

Related products

Flow visualisation and pipe flow set-ups are listed in the JaincoLab fluid mechanics lab equipment range.

Request a quote

To order the Osborne Reynolds Apparatus, send the quantity and delivery destination through the JaincoLab contact page or email [email protected].

Published: September 2026 | Last Updated: September 2026

   
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Office Address

Jain Scientific Suppliers
2475-84, Hargolal Road,
Ambala Cantt, Haryana, India

[email protected]

+91-85699-09696

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