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Flow Visualization Channel Manufacturer,Supplier and Exporter in India

Product Code : SCL-CELE-14130

The Flow Visualization Channel is a bench top open channel unit designed to conduct experiments related to open channel flows and to visually study streamline patterns over and around various objects. It provides a valuable tool for understanding potential flow and the transition between laminar and turbulent flow regimes.

The core apparatus is a clear acrylic flow channel with a bell mouth entry to ensure minimal flow disturbances. Flow is supplied from a constant head supply tank containing glass beads for stilling, and the water is typically sourced from an external Hydraulic Bench. Flow velocity is controlled by a membrane-type flow valve at the exit and measured volumetrically by the hydraulic bench's measuring tank. Flow patterns are made visible using a dye injection system with adjustable needle valves. The channel accommodates a wide range of scaled models (weirs, airfoils, cylinders, etc.) to investigate various flow phenomena.

Technical Specifications and Components

Feature / Component	Parameter / Specification	Detail / Value
Flow Channel	Material and Dimensions	Clear acrylic, 650 mm length, 20 mm width, 140 mm height.
Channel Entry	Feature	Bell mouth entry (reduces flow disturbances).
Flow Control	Devices	Overshot and undershot weirs (inlet/exit), membrane-type flow control valve.
Supply Tank	Capacity and Feature	20 Liters capacity, contains glass beads for flow stilling.
Dye Injection System	Capacity and Control	0.5 Liters reservoir capacity, 5 dye injection needles with needle valves.
Depth Measurement	Device and Range	Depth gauge, 0 – 150 mm range.
Models Supplied (Example)	Types	Sharp/broad crested weirs, hump, small/large cylinder, various airfoils (with/without flap), disc, cuboid.
Overall Dimensions	H x W x L	0.75 m x 0.50 m x 0.90 m.
Services Required	Power Supply	240 V, single-phase, 50 Hz.

Experimental Objectives

Experiment Group	Key Measurement / Investigation	Fluid Dynamics Principle
Open Channel Flow	Study of basic flow conditions and flow over weirs (overshot, undershot, broad, narrow crested).	Analysis of head-discharge relationships and flow control.
Flow Visualization	Familiarization with the water flow visualization technique using dye injection.	Making streamlines visible for qualitative analysis.
Flow Regimes	Demonstration of laminar and turbulent flow and vortex shedding from cylinders and bluff bodies.	Observing the effect of Reynolds number on flow separation and wake.
Streamline Patterns	Study of streamline patterns around models like cylinders, airfoils (with various incidences), hump, disc, and cuboid.	Comparison of observed streamline patterns with theoretical (potential flow) models.
Airfoil Study	Study of streamline patterns around airfoils with and without flaps at various angles of incidence.	Understanding lift generation and boundary layer effects.