Reynolds Apparatus Manufacturer,Supplier and Exporter in India
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Product Code : SCL-CELE-14003
This apparatus is a self-contained water recirculating
unit designed for the visual observation and quantitative study of three
fundamental flow regimes: laminar, transitional, and turbulent flow.
1. Key Components and Design
The setup is optimized for creating smooth, controlled flow
and visualizing the fluid's behavior.
- Test
Section: A glass tube connected to a constant head
water tank at one end.
- Inlet:
Features a bell mouth entrance to ensure smooth, disturbance-free
entry of water into the tube.
- Outlet: A valve
is provided to control and vary the flow rate through the glass
tube.
- Dye
Injection System:
- A capillary
tube is introduced centrally in the bell mouth.
- It
feeds dye from a small container (via polythene tubing) placed at
the top of the tank.
- Purpose: The
dye stream visualizes the flow pattern, making it possible to observe
whether the flow is laminar (straight line), transitional (wavy), or
turbulent (dispersed).
- Constant
Head Tank: The tank is of sufficient capacity to
store water and, with an overflow (implied by "constant head"),
minimizes disturbances in the water supply.
2. Water Circulation and Flow Rate Measurement
The system ensures accurate determination of the actual flow
velocity, which is crucial for calculating the Reynolds number.
- Water
Circulation: Provided by an FHP Pump (Crompton make).
- Sump
Tank: 55 Liters (approx.) capacity.
- Flow
Rate Measurement (Actual Flow):
- Achieved
using a Measuring Tank (25 Liters (approx.) capacity).
- An Electronic
Stop Watch is used to measure the time required to collect a known
volume, calculating the actual discharge (Q actual) and,
subsequently, the flow velocity (V).
- Control
Panel: Includes standard On/Off Switches and Mains Indicator.
3. Purpose and Experiments
The primary goal is the verification of Osborne Reynolds'
classical findings.
- Flow
Observation: Visually observe the distinct characteristics of
laminar, transitional, and turbulent flows.
- Reynolds
Number Determination: Calculate the Reynolds number ($Re$) for the
flow corresponding to the observed changes in flow regime.
- Critical
Reynolds Number: Determine the critical Reynolds number values
at which laminar flow transitions to turbulent flow.
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