Fluid Dynamics and Process Engineering - Coanda Research & Development

What We Do

We help our clients DISCOVER the root of their technical problems,
enable them to RESOLVE their process challenges,
and support them to DEVELOP new technology ideas.

Industries

Cleantech, Mining, Oil & Gas, Petrochemical...

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Expertise

Mixing, Gasification, Non-Newtonian fluids, Fluidization...

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Process Engineering, Physical Modeling, CFD, Equipment Design...

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Big Data Machine Learning & AI
When to use Machine Learning
- Neville Dubash
Machine Learning (ML) and Artificial Intelligence (AI) are at the forefront of many technologies. ML...
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Nozzles Jets Sprays
Spray Nozzle Characterization with Phase Doppler Interferometry (PDI)
- Andrew Mezo
We use Phase Doppler Interferometry (PDI) to characterize nozzle sprays. PDI is a nonintrusive laser-based...
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Cleantech
The Myriad Colours of Hydrogen
- Cedric Laborde-Boutet
You’ve likely seen articles defining hydrogen as blue, green, black, yellow, pink, turquoise, or myriad...
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Computational Fluid Dynamics
CFD Modeling of Particle Attrition by Supersonic Gas Jets
- Konstantin Pougatch
- Marvin Weiss
Particle breakage (or attrition) by gas jets is encountered in many processes. Quite often it...
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coandacanada

We help our clients resolve their technical problems, make their processes more efficient, and develop new technology.

Last time we looked at the measurement principle o

Electromagnetic flow meters, or mag meters, are th

#MachineLearning (ML) and #ArtificialIntelligence

We use Phase Doppler Interferometry (PDI) to chara $We use Phase Doppler Interferometry (PDI) to characterize nozzle sprays. PDI is a nonintrusive laser-based measurement technique, which uses laser-Doppler anemometry to simultaneously measure the diameter, velocity, and volume flux of individual droplets. The instrument consists of separate transmitter and receiver units, positioned such that they focus on the same point in space. Two pairs of laser beams are focused using a transmitter lens and made to intersect at a shallow angle, forming the measurement volume. Where the two laser beams intersect, an interference pattern of alternating light and dark bands is formed. This pattern would be stationary if the beams had the same frequency, but an ultrasonic diffraction grating is used to create a frequency shift between the beams, which causes the interference pattern to move. A stationary droplet will appear to flash as the interference pattern moves over it. If the droplet is moving with or against the interference pattern, the flashing will be slower or faster (Doppler effect). Light scattered by objects passing through the measurement volume is collected by a receiver lens and focused onto a photodetector. The component of the object’s velocity in the plane of each laser beam pair, and perpendicular to the pair’s axis, is determined from the frequency shift of flashes. The object’s size can be determined from the phase-shift between signals received at photodetectors separated by a known distance. By focusing two pairs of different coloured beams on the same point, but oriented in different planes, the velocity can be resolved in two dimensions perpendicular to the common beam axis. #PDI #nozzlesprays #droplets #doppler #advancedmeasurements #engineering$

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We've established a reputation as problem solvers and subject matter experts guiding our clients through the discovery, evaluation and resolution of their industrial process problems.

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Solving industrial problems through
science & technology

What We Do

Industries

Expertise

Services

News + Publications

When to use Machine Learning

Spray Nozzle Characterization with Phase Doppler Interferometry (PDI)

The Myriad Colours of Hydrogen

CFD Modeling of Particle Attrition by Supersonic Gas Jets

coandacanada

Strategic. Comprehensive. Client Focused.

Let's Talk

Solving industrial problems through science & technology

What We Do

Industries

Expertise

Services

News + Publications

When to use Machine Learning

Spray Nozzle Characterization with Phase Doppler Interferometry (PDI)

The Myriad Colours of Hydrogen

CFD Modeling of Particle Attrition by Supersonic Gas Jets

coandacanada

Strategic. Comprehensive. Client Focused.

Let's Talk

Solving industrial problems through
science & technology