Personal profile

Research interests

My research interest fall into two areas: the first is green cleaning of fouling surfaces, and the second is dynamics of small scale fluid particles in gas-liquid flow systems.

Green cleaning of fouling surfaces:

I have strong interest in the research area related to surface layers. I have been working on issues related to fouling and cleaning of surface layers in the food, textile, polymer processing, membranes and biotechnological industries since 2004. Fluid Dynamic Gauging (FDG) is a technique developed in my research group to measure the thickness of solid layers deposited on a substrate in situ and in real time. The technique is based on the steady flow of a fluid through a nozzle located near the layer surface, so that the device does not touch the layer but senses its presence, by virtue of its influence on the flow rate of the fluid. Measurement of the flow rate tells us the clearance and the thickness can be calculated. In recent years, FDG has been extended to an automated system that can now measure thickness and attachment strength or deformability of fouling layers in situ and in real time. The advances have come through combining experimental measurements and numerical modelling.

Dynamics of small scale fluid particles in gas-liquid flow systems:

Bubbles and droplets, are ubiquitous in everyday life, both in nature and in technology. My research on gas-liquid systems is centred on understanding the hydrodynamics and interfacial interactions of small scaled fluid particles with their continuous phase during the course of their movements in a piece of equipment. The most important feature of the fluid particles that sets them apart from the rigid particles is their mobile surface and their ability to deform during motion. A combination of experimental and computational techniques are used to understand the dynamics of these bubbles is process such as wastewater treatment, fermentation and surface cleaning.

Willing to supervise PhD

Interested in supervising students studying:

  • Green cleaning
  • Membranes
  • Sensors for fouling and cleaning
  • Gas-liquid phase flows
  • Non-Newtonian fluids
  • Gas spearations

Education/Academic qualification

Doctor of Philosophy, University of Cambridge

Fingerprint Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

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Gaging Engineering & Materials Science
Fluid dynamics Engineering & Materials Science
Fouling Engineering & Materials Science
Deposits Chemical Compounds
Cleaning Engineering & Materials Science
Computational fluid dynamics Engineering & Materials Science
Microfiltration Engineering & Materials Science
Shear stress Engineering & Materials Science

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Projects 2014 2020

Equipment Supply Agreement

Chew, Y.

1/06/16 → …

Project: Research-related fundingOther

Equipment Supply Agreement

Chew, Y.

4/01/16 → …

Project: Research-related fundingOther

Membranes
Fabrication
Fouling
Aging of materials
Ceramic membranes

New in-situ technique to gauge the mechanics of biofilms

Chew, Y. & Wenk, J.

1/09/1731/12/17

Project: Research-related fundingInternational Relations Office Funding

Research Output 2004 2018

biofilm
fluid dynamics
in situ
method
microscopy

Computational Studies of a Novel Magnetically Driven Single-Use-Technology Bioreactor: A Comparison of Mass Transfer Models

Maltby, R., Tian, S. & Chew, Y-M. 3 May 2018 (Accepted/In press) In : Chemical Engineering Science. 187, p. 157-173

Research output: Contribution to journalArticle

Bioreactors
Mass transfer
Computational fluid dynamics
Turbulence models
Dynamic analysis

Membrane fouling during microfiltration of milk into casein and whey fractionations

Escursell Jove, O., Chew, Y-M., Kasprzyk-Hordern, B., Wenk, J. & Bird, M. 17 Apr 2018

Research output: Contribution to conferencePaper

microfiltration
fouling
whey
casein
fractionation

On-line Biofilm Strength Detection in Cross-flow Membrane Filtration Systems

Suwarno, S. R., Huang, W., Chew, Y-M., Tan, S. H. H., Trisno, A. E. & Zhou, Y. 2018 In : Biofouling: The Journal of Bioadhesion and Biofilm Research. 34, 2, p. 123-131

Research output: Contribution to journalArticle

Biofilms
strength (mechanics)
biofilm
Gaging
fluid dynamics
orange juice
phytosterols
fouling
ultrafiltration
fractionation