Design of Vortex Flow Chamber for 3” OD Bottle with Internal Helical Grooves

Budget: ₹600 - ₹1500

Project Description

Design a cylindrical vortex chamber to generate strong swirling flow using a 40 L/min water pump. The chamber will hold a 3-inch OD bottle inside, so proper clearance and flow gap must be maintained. The system is stationary and used for vortex-based cooling/mixing. Geometry Specifications Bottle Outer Diameter: 76 mm (3 inch) Chamber Inner Diameter: 100–110 mm (to maintain flow gap around bottle) Chamber Height: 280 mm (11 inch) Radial Clearance (water gap): 10–15 mm around bottle Material: PVC or Aluminum Wall Thickness: As per design recommendation

Scope of Work

Cylinder & Groove Design Deternal helical grooves (3-start configuration) Groove depth: ~3 mm Groove width: ~6 mm Helix angle: ~20° Pitch: ~100 mm Grooves must be on inner wall (not on bottle) Smooth internal finish with rounded edges

Inlet Design

Tangential inlet (side entry) Diameter: 12–16 mm Position: ~25 mm from bottom Angle: Tangential with slight downward inclination

Outlet Design

Top central outlet Diameter: ~20 mm Flow Requirements Ensure strong vortex formation around bottle Uniform swirling flow along full height Optimize flow in annular space between bottle and chamber wall Minimize dead zones and pressure losses

Deliverables

3D CAD model (STEP / STL format) 2D dimensioned drawings Assembly showing bottle placement inside chamber Design file (SolidWorks / Fusion 360 preferred)

Required Skills

Fluid Dynamics / CFD Mechanical Design (CAD) Experience with vortex / cyclone / internal flow systems

Additional Requirements

Design must be suitable for CNC machining or practical fabrication Internal features must be durable and manufacturable Bottle should be easily insertable and removable