Open Daily: 10am - 10pm | Alley door pickup 10am - 7pm 3038 Hennepin Ave Minneapolis, MN
612-822-4611

  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Particle Image Velocimetry Using Novel, Non-Intrusive Particle Seeding

Particle Image Velocimetry Using Novel, Non-Intrusive Particle Seeding

Delapp, Charles J.

Paperback

Technology & EngineeringPhysics

ISBN10: 1025123433
ISBN13: 9781025123431
Publisher: Hutson Street Press
Published: May 22 2025
Pages: 98
Weight: 0.33
Height: 0.20 Width: 6.14 Depth: 9.21
Language: English

The purpose of this research effort was to study the use of non-intrusive particle seeding for Particle Image Velocimetry (PIV). Current seeding material and techniques involve the use of either solid particles or liquid mixtures which can contaminate or damage closed circuit wind tunnels, and in some cases can introduce a potential fire or explosive hazard. The proposed method is based on creating seed particles utilizing carbon dioxide (CO2). The CO2 would be dispensed into the flow as a liquid, immediately condensing to solid seed particles as they leave the spray nozzle. The advantage of using these particles is that they will sublimate from their solid state to harmless CO2 gas that would neither contaminate nor damage the tunnel and would not present a combustion hazard. The goal of this research is to determine if this technique is capable of yielding suitable CO2 seed particles, in an attempt to be able to ensure their suitability for Particle Image Velocimetry (PIV). Particle sizing data was acquired for a small-scale low-speed flow, and a size range on the order of 10 m was a common result for a variety of different nozzle and flow conditions. It was determined that with little modification, a commercial CO2 cleaning device created enough suitably sized seed tracer particles to execute PIV measurements and a proof-of-concept was successfully demonstrated in a supersonic flow using this technique.

1 different editions

Also available

Also from

Delapp, Charles J.

View All

Also in

Technology & Engineering

View All