Horizontal Reynolds Test System

The Horizontal Reynolds Test System by Atto Labware is a versatile fluid mechanics apparatus designed to visually demonstrate the transition between laminar, transitional, and turbulent flow in a horizontal pipe. Using dye injection, students can observe the characteristic flow patterns and determine the critical Reynolds number at which flow changes its nature. This experiment provides a clear understanding of fluid flow regimes and is fundamental for Civil, Mechanical, and Chemical Engineering laboratories.

Educational Objectives

Students and researchers will be able to:

• Observe and distinguish between laminar, transitional, and turbulent flow.

• Determine the critical Reynolds number for the onset of turbulence.

• Understand the relationship between velocity, viscosity, and flow regime.

• Verify the Reynolds number formula and its dependence on fluid properties.

• Correlate theoretical predictions with experimental observations.

Performance Measurement

• Measurement of flow rate using a calibrated measuring tank or hydraulic bench.

• Determination of kinematic viscosity from fluid temperature.

• Observation of dye filament behavior for identifying flow regimes.

• Calculation of Reynolds number for various flow conditions.

Panel and Instruments / Components

• Transparent Flow Tube: Horizontal clear acrylic pipe for visual observation of flow patterns.

• Dye Injection System: Fine nozzle with adjustable valve for controlled dye introduction.

• Flow Control Valve: Regulates discharge rate for varying flow velocities.

• Water Supply System: Constant head tank or hydraulic bench connection for steady flow.

• Thermometer: Measures water temperature for viscosity correction.

• Measuring Vessel: Used for accurate determination of flow rate.

• Mounting Frame: Rigid steel frame with powder-coated finish for durability.

Specifications (Includes Technical Data)

Note: Customized flow tubes, digital sensors, and data acquisition systems are available on request.