j.chai@hud.ac.uk | 01484 471325

- Asphaltene; wax and hydrate depositions
- Multiscale Transports in Reservoirs
- Transport; Residuals and Possible Corrosion in Long Pipelines
- Effects of Shutdown Period on Long Pipelines
- Separation Using

## Biography

John Chai joined the University of Huddersfield on 1 September 2014 as a Professor at the Department of Engineering and Technology of the School of Computing and Engineering. He is an Adjunct Professor of Xian Jiaotong University, Shanxi, China and Chinese University of Petroleum – East China, Qingdao, Shandong, China. He is an Editorial Advisory Board member of Computational Thermal Sciences, Associate Editors of the ASME Journal of Thermal Science and Engineering and Heat Transfer Engineering. He is an elected Fellow of ASME (American Society of Mechanical Engineers).

He received his B.S. (with First-Class Honours) in Mechanical Engineering from the University of Windsor, Canada and his M.S. in Mechanical Engineering from the University of Wisconsin-Milwaukee. In 1994 he graduated from the University of Minnesota with a Ph.D. in Mechanical Engineering where he worked under the supervision of Prof. Suhas V. Patankar.

In October 2009, he joined the Petroleum Institute (PI) of Abu Dhabi, UAE as professor and Chairman of Mechanical Engineering. Prior to joining the PI, he was a Principal Engineer at Amoeba Technologies Inc., a start-up CFD company. He also held faculty positions in Singapore and Tennessee, USA.

He has published over 80 journal articles, over 90 conference articles and contributed a chapter to the second edition of the Handbook of Numerical Heat Transfer. According to Google Scholar, his works have been cited almost 3000 times and his h-index is 25.

His research interests are in the development of numerical techniques for complex multiphysics transport phenomena encountered in multi-phase flows and fluid-structure interactions. Applications include, but are not limited to, digital (droplet-based) microfluidics, wet chemical etching, asphaltene (cholesterol) depositions, numerical methods for oil and gas industry and manufacturing.

## Research and Scholarship

His research interests are in the development of numerical techniques for complex multiphysics transport phenomena encountered in multi-phase flows and fluid-structure interactions. Applications include, but are not limited to:

►Asphaltene Depositions

►Hydrate Depositions

►Multiscale Transports in Reservoirs

►Transport in Long Pipelines

►Residuals and Possible Corrosion in Long Pipelines

►Start-Up in Long Pipelines

►Effects of Shutdown Period on Long Pipelines

►Separation Using Rotating Packed Bed Technology

►Formation Damage

►Coupled-Ground Heat Exchanger

►Solar Chimney

Publications can be viewed on Google Scholar

## Publications and Other Research Outputs

### Article

Stetsyuk, V., Kubiak, K., Liu, L. and Chai, J. (2017) ‘An alternative approach to evaluate the average Nusselt number for mixed boundary layer conditions in parallel flow over an isothermal flat plate’

*International Journal of Mechanical Engineering Education*. ISSN 0306-4190Stetsyuk, V., Kubiak, K., Liu, L. and Chai, J. (2017) ‘An Alternative Approach to Evaluate the Average Nusselt Number for Mixed Boundary Layer Conditions in Parallel Flow over an Isothermal Flat Plate’

*International Journal of Mechanical Engineering Education*. ISSN 0306-4190Li, H., Yap, Y., Lou, J., Chai, J. and Zhang, S. (2017) ‘Conjugate Heat Transfer in Stratified Two-Fluid Flows with a Growing Deposit Layer’

*Applied Thermal Engineering*, 113, pp. 215-228. ISSN 1359-4311Chen, L., Liu, G., Zhang, G., Tang, Y. and Chai, J. (2016) ‘Asymptotic Analyses of the Start-Up Stage of Couette Flow Subjected to Different Boundary Conditions’

*International Communications in Heat and Mass Transfer*. ISSN 0735-1933Zhuang, Y., Goharzadeh, A., Lin, Y., Yap, Y., Chai, J., Mathew, N., Vargas, F. and Biswal, S. (2016) ‘Three Dimensional Measurements of Asphaltene Deposition in a Transparent Micro-Channel’

*Journal of Petroleum Science and Engineering*, 145, pp. 77-82. ISSN 0920-4105Lin, Y., He, P., Tavakkoli, M., Mathew, N., Yap, Y., Chai, J., Goharzadeh, A., Vargas, F. and Biswal, S. (2016) ‘Examining Asphaltene Solubility on Deposition in Model Porous Media’

*Langmuir*, 32 (34), pp. 8729-8734. ISSN 0743-7463Xu, M., Lu, H., Gong, L., Chai, J. and Duan, X. (2016) ‘Parametric Numerical Study of the Flow and Heat Transfer in Microchannel with Dimples’

*International Communications in Heat and Mass Transfer*, 76, pp. 348-357. ISSN 0735-1933Chen, L., Liu, G., Zhang, G., Tang, Y. and Chai, J. (2016) ‘Transient Stage Comparison of Couette Flow under Step Shear Stress and Step Velocity Boundary Conditions’

*International Communications in Heat and Mass Transfer*, 75, pp. 232-239. ISSN 0735-1933Meng, X., Lu, Z., Jin, L., Zhang, L., Hu, W., Wei, L. and Chai, J. (2015) ‘Experimental and Numerical Investigation on Thermal Management of an Outdoor Battery Cabinet’

*Applied Thermal Engineering*, 91, pp. 210-224. ISSN 1359-4311Yang, H., Zhao, M., Gu, Z., Jin, L. and Chai, J. (2015) ‘A further discussion on the effective thermal conductivity of metal foam: An improved model’

*International Journal of Heat and Mass Transfer*, 86, pp. 207-211. ISSN 0017-9310Li, H., Yap, Y., Lou, J., Chai, J. and Shang, Z. (2015) ‘Numerical investigation of conjugated heat transfer in a channel with a moving depositing front’

*International Journal of Thermal Sciences*, 88, pp. 136-147. ISSN 12900729Ge, Q., Yap, Y., Zhang, M. and Chai, J. (2013) ‘Modeling anisotropic diffusion using a departure from isotropy approach’

*Computers & Fluids*, 86, pp. 298-309. ISSN 00457930Ge, Q., Yap, Y., Vargas, F., Zhang, M. and Chai, J. (2013) ‘Numerical modeling of asphaltene deposition’

*Computational Thermal Sciences*, 5 (2), pp. 153-163. ISSN 1940-2503Yap, Y., Vargas, F. and Chai, J. (2013) ‘A level-set method for convective–diffusive particle deposition’

*Applied Mathematical Modelling*, 37 (7), pp. 5245-5259. ISSN 0307904XGe, Q., Yap, Y., Vargas, F., Zhang, M. and Chai, J. (2012) ‘A Total Concentration Method for Modeling of Deposition’

*Numerical Heat Transfer, Part B: Fundamentals*, 61 (4), pp. 311-328. ISSN 1040-7790Li, H., Wong, T., Nguyen, N. and Chai, J. (2012) ‘Numerical modeling of tunable optofluidics lens based on combined effect of hydrodynamics and electroosmosis’

*International Journal of Heat and Mass Transfer*, 55 (9-10), pp. 2647-2655. ISSN 0017-9310Che, Z., Wong, T., Nguyen, N. and Chai, J. (2012) ‘Formation and breakup of compound pendant drops at the tip of a capillary and its effect on upstream velocity fluctuations’

*International Journal of Heat and Mass Transfer*, 55 (4), pp. 1022-1029. ISSN 0017-9310Che, Z., Wong, T., Nguyen, N., Yap, Y. and Chai, J. (2011) ‘Numerical investigation of upstream pressure fluctuation during growth and breakup of pendant drops’

*Chemical Engineering Science*, 66 (21), pp. 5293-5300. ISSN 00092509Hoa, P., Yap, Y., Nguyen, N. and Chai, J. (2011) ‘Thermally Mediated Droplet Formation at a Microfluidic T-Junction’

*Micro and Nanosystems*, 3 (1), pp. 65-75. ISSN 18764029Li, H., Leong, K., Jin, L. and Chai, J. (2010) ‘Three-dimensional numerical simulation of fluid flow with phase change heat transfer in an asymmetrically heated porous channel’

*International Journal of Thermal Sciences*, 49 (12), pp. 2363-2375. ISSN 12900729Li, H., Leong, K., Jin, L. and Chai, J. (2010) ‘Transient behavior of fluid flow and heat transfer with phase change in vertical porous channels’

*International Journal of Heat and Mass Transfer*, 53 (23-24), pp. 5209-5222. ISSN 0017-9310Xu, B., Wong, T., Nguyen, N., Che, Z. and Chai, J. (2010) ‘Thermal mixing of two miscible fluids in a T-shaped microchannel’

*Biomicrofluidics*, 4 (4), p. 044102. ISSN 1932-1058Li, H., Leong, K., Jin, L. and Chai, J. (2010) ‘Transient two-phase flow and heat transfer with localized heating in porous media’

*International Journal of Thermal Sciences*, 49 (7), pp. 1115-1127. ISSN 12900729Li, H., Leong, K., Jin, L. and Chai, J. (2010) ‘Analysis of fluid flow and heat transfer in a channel with staggered porous blocks’

*International Journal of Thermal Sciences*, 49 (6), pp. 950-962. ISSN 12900729Leong, K., Li, H., Jin, L. and Chai, J. (2010) ‘Numerical and experimental study of forced convection in graphite foams of different configurations’

*Applied Thermal Engineering*, 30 (5), pp. 520-532. ISSN 13594311Khoong, L., Lam, Y., Chai, J., Ma, J. and Jiang, L. (2009) ‘Modeling of mass transfers in a porous green compact with two-component binder during thermal debinding’

*Chemical Engineering Science*, 64 (12), pp. 2837-2850. ISSN 0009-2509Chai, J. and Yap, Y. (2008) ‘A distance-function-based Cartesian (DIFCA) grid method for irregular geometries’

*International Journal of Heat and Mass Transfer*, 51 (7-8), pp. 1691-1706. ISSN 0017-9310Yap, Y., Chai, J., Wong, T., Nguyen, N., Toh, K., Zhang, H. and Yobas, L. (2008) ‘A Procedure for the Motion of Particle-Encapsulated Droplets in Microchannels’

*Numerical Heat Transfer, Part B: Fundamentals*, 53 (1), pp. 59-74. ISSN 1040-7790Khoong, L., Lam, Y., Chai, J., Jiang, L. and Ma, J. (2007) ‘Numerical and experimental investigations on thermal debinding of polymeric binder of powder injection molding compact’

*Chemical Engineering Science*, 62 (23), pp. 6927-6938. ISSN 0009-2509Rath, P., Chai, J., Lam, Y., Murukeshan, V. and Zheng, H. (2007) ‘A Total Concentration Fixed-Grid Method for Two-Dimensional Wet Chemical Etching’

*Journal of Heat Transfer*, 129 (4), pp. 509-516. ISSN 0022-1481Rath, P. and Chai, J. (2007) ‘Modeling Convection-Driven Diffusion-Controlled Wet Chemical Etching Using a Total-Concentration Fixed-Grid Method’

*Numerical Heat Transfer, Part B: Fundamentals*, 53 (2), pp. 143-159. ISSN 1040-7790Nguyen, N., Ting, T., Yap, Y., Wong, T., Chai, J., Ong, W., Zhou, J., Tan, S. and Yobas, L. (2007) ‘Thermally mediated droplet formation in microchannels’

*Applied Physics Letters*, 91 (8), p. 084102. ISSN 0003-6951Yap, Y., Chai, J., Wong, T., Nguyen, N., Toh, K. and Zhang, H. (2007) ‘Particle Transport in Microchannels’

*Numerical Heat Transfer, Part B: Fundamentals*, 51 (2), pp. 141-157. ISSN 1040-7790Ting, T., Yap, Y., Nguyen, N., Wong, T., Chai, J. and Yobas, L. (2006) ‘Thermally mediated breakup of drops in microchannels’

*Applied Physics Letters*, 89 (23), p. 234101. ISSN 0003-6951Tang, G., Yan, D., Yang, C., Gong, H., Chai, J. and Lam, Y. (2006) ‘Assessment of Joule heating and its effects on electroosmotic flow and electrophoretic transport of solutes in microfluidic channels’

*ELECTROPHORESIS*, 27 (3), pp. 628-639. ISSN 0173-0835Yap, Y., Chai, J., Wong, T., Toh, K. and Zhang, H. (2006) ‘A Global Mass Correction Scheme for the Level-Set Method’

*Numerical Heat Transfer, Part B: Fundamentals*, 50 (5), pp. 455-472. ISSN 1040-7790Chai, J., Hsu, P. and Lam, Y. (2004) ‘Three-dimensional transient radiative transfer modeling using the finite-volume method’

*Journal of Quantitative Spectroscopy and Radiative Transfer*, 86 (3), pp. 299-313. ISSN 0022-4073Lam, Y., Tran, D., Zheng, H., Murukeshan, V., Chai, J. and Hardt, D. (2004) ‘Surface damage of crystalline silicon by low fluence femtosecond laser pulses’

*Surface Review and Letters*, 11 (02), pp. 217-221. ISSN 0218-625XChen, X., Toh, K., Chai, J. and Yang, C. (2004) ‘Developing pressure-driven liquid flow in microchannels under the electrokinetic effect’

*International Journal of Engineering Science*, 42 (5), pp. 609-622.Chai, J (2004) ‘Transient radiative transfer in irregular two-dimensional geometries’

*Journal of Quantitative Spectroscopy and Radiative Transfer*, 84 (3), pp. 281-294. ISSN 0022-4073Tang, G., Yang, C., Chai, J. and Gong, H. (2004) ‘Joule heating effect on electroosmotic flow and mass species transport in a microcapillary’

*International Journal of Heat and Mass Transfer*, 47 (2), pp. 410-415. ISSN 0017-9310Chai, J (2003) ‘One-dimensional transient radiation heat transfer modeling using a finite-volume method’

*Numerical Heat Transfer, Part B: Fundamentals*, 44 (2), pp. 187-208. ISSN 1040-7790Toh, K., Chen, X. and Chai, J. (2002) ‘Numerical computation of fluid flow and heat transfer in microchannels’

*International Journal of Heat and Mass Transfer*, 45 (26), pp. 5133-5141. ISSN 00179310Moder, J., Chai, J., Parthasarathy, G., Lee, H. and Patankar, S. (1996) ‘Nonaxisymmetric radiative transfer in cylindrical enclosures’

*Numerical Heat Transfer, Part B: Fundamentals*, 30 (4), pp. 437-452. ISSN 1040-7790Parthasarathy, G., Lee, H., Chai, J. and Patankar, S. (1995) ‘Monte Carlo Solutions for Radiative Heat Transfer in Irregular Two-Dimensional Geometries’

*Journal of Heat Transfer*, 117 (3), p. 792. ISSN 0022-1481Chai, J., Parthasarathy, G., Lee, H. and Patankar, S. (1995) ‘Finite volume radiative heat transfer procedure for irregular geometries’

*Journal of Thermophysics and Heat Transfer*, 9 (3), pp. 410-415. ISSN 0887-8722Chai, J., Lee, H. and Patankar, S. (1994) ‘Improved Treatment of Scattering Using the Discrete Ordinates Method’

*Journal of Heat Transfer*, 116 (1), pp. 260-263. ISSN 0022-1481Chai, J., Patankar, S. and Lee, H. (1994) ‘Evaluation of spatial differencing practices for the discrete-ordinates method’

*Journal of Thermophysics and Heat Transfer*, 8 (1), pp. 140-144. ISSN 0887-8722Chai, J., Lee, H. and Patankar, S. (1994) ‘Treatment of irregular geometries using a cartesian coordinates finite-volume radiation heat transfer procedure’

*Numerical Heat Transfer, Part B: Fundamentals*, 26 (2), pp. 225-235. ISSN 1040-7790Chai, J., Lee, H. and Patankar, S. (1994) ‘Finite volume method for radiation heat transfer’

*Journal of Thermophysics and Heat Transfer*, 8 (3), pp. 419-425. ISSN 0887-8722Chai, J. and Patankar, S. (1993) ‘Laminar Natural Convection in Internally Finned Horizontal Annuli’

*Numerical Heat Transfer, Part A: Applications*, 24 (1), pp. 67-87. ISSN 1040-7782Chai, J., Lee, H. and Patankar, S. (1993) ‘Ray Effect and False Scattering in the Discrete Ordinates Method’

*Numerical Heat Transfer, Part B: Fundamentals*, 24 (4), pp. 373-389. ISSN 1040-7790### Book Section

Yap, Y., Yali, Z., Wong, T., Nguyen, N. and Chai, J. (2014) ‘Flow Bifurcation in Microchannel’.

*In: Encyclopedia of Microfluidics and Nanofluidics*. : Springer New York. pp. 1120-1131. ISBN 978-3-642-27758-0Yap, Y., Vargas, F. and Chai, J. (2012) ‘A Level-Set Method for Particle Deposition on Surfaces’.

*In: ASME Conference Proceedings*. Puerto Rico, USA: ASME. pp. 923-935. ISBN 978-0-7918-4477-9### Conference Item

Li, X., Yap, Y., Goharzadeh, A., Chai, J. and Zhang, M. (2017) ‘Modeling of Two-Phase Flow with Deposition in Vertical Pipes’.

*In: Seventh International Conference on Modeling, Simulation, and Applied Optimization - 2017 (ICMSAO'17), 4 - 6 April 2017*, UAEGuan, Q., Yap, Y., Goharzadeh, A., Chai, J., Vargas, F., Chapman, W. and Zhang, M. (2017) ‘Integrated One-Dimensional Modeling of Asphaltene Deposition in Wellbores/Pipelines’.

*In: Seventh International Conference on Modeling, Simulation and Applied Optimization, April 4th-6th 2017*, UAEYap, Y., Goharzadeh, A. and Chai, J. (2016) ‘Computation of multiphase flows using the level-set method’.

*In: International Heat Transfer Symposium Conference 2016 (IHTS 2016), 26 - 29 June 2016*, NottinghamLin, Y., Tavakholi, M., He, P., Sun, Y., Yap, Y., Chai, J., Goharzadeh, A., Vargas, F. and Biswal, S. (2015) ‘Asphaltene Aggregation and Deposition in Porous Micromodel’.

*In: 2015 AIChE Annual Meeting, Nov. 8 – 13, 2015*, Salt Lake City, Utah, USA.Zhuang, Y., Goharzadeh, A., Yap, Y., Chai, J., Mathew, N., Lin, Y., Vargas, F. and Biswal, S. (2015) ‘Experimental Investigation of Asphaltene Deposition in A Transparent Microchannel’.

*In: Proceedings of the 1st Thermal and Fluid Engineering Summer Conference, August 9-12, 2015*, New York, NY, USAChai, J (2015) ‘History of Radiation Heat Transfer Solution Procedure using Finite-Volume Method at the University of Minnesota’.

*In: CHT'15 6th International Symposium on Advances in Computational Heat Transfer, May 25 – 29, 2015*, Rutgers University, USA.Meng, X., Lu, Z., Su, L., Luo, X., Wei, L., Jin, L. and Chai, J. (2014) ‘Numerical and Experimental Investigation on Thermal Management of an Outdoor Battery Cabinet’.

*In: ASME 2014 International Mechanical Engineering Congress and Exposition, November 14 – 20, 2014*, Montreal, CanadaLuo, X., Gu, Z., Chai, J., Meng, X., Lu, Z. and Zhu, B. (2014) ‘Investigation on Moisture and Salt Transport in Heterogeneous Porous Media of Relics-Soil in Archaeology Museum’.

*In: ASME 2014 International Mechanical Engineering Congress and Exposition, November 14 – 20, 2014*, Montreal, CanadaGoharzadeh, A., Zhuang, Y., Yap, Y., Chai, J., Mathew, N., Vargas, F. and Biswal, S. (2014) ‘Experimental investigation of Asphaltene deposition in a transparent mini-channel’.

*In: HEFAT14, International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Jul. 14 – 16, 2014*, Orlando, Fl, USAGoharzadeh, A., Yap, Y., Vargas, F., Biswal, S. and Chai, J. (2014) ‘Oil and Gas Industry Research: Some Challenges, Selected Current Research Activities and Sample Opportunities for Inter-Disciplinary Research’.

*In: IHTS2014, International Heat Transfer Symposium, 6-9, May, 2014*, Beijing, China## Esteem

**Editorial Advisory Board Membership**- Computational Thermal Sciences

**Associate Editor**- ASME Journal of Thermal Science and Engineering
- Heat Transfer Engineering

**Fellow**- American Society of Mechanical Engineering (ASME)
- Higher Education Academy

**Keynotes/Invited Talks**- 5th International Conference on Computational Heat and Mass Transfer, June 18-22, 2007, Canmore, Alberta, Canada.
- CHT-12: International Symposium on ADVANCES IN COMPUTATIONAL HEAT TRANSFER, Jul 1 – 6, 2012, Bath, England.
- HEFAT2012, 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Jul 16 – 18, 2012, Malta.
- IWHT2013, 2nd International Workshop on Heat Transfer Advances for Energy Conservation and Pollution Control, Oct. 18 – 21, 2013, Xi’an, Shaanxi, China.
- IHTS2014, International Heat Transfer Symposium, 6-9, May, 2014, Beijing, China.
- ICHMT CHT'15 an international symposium on Advances in Computational Heat Transfer, May 25 – 30, 2015, Rutgers University, Piscataway, USA.
- Heat Transfer 2016, 14th International Conference on Simulation and Experiments in Heat Transfer and its Applications, 7 – 9 September 2016, Ancona, Italy

**International Scientific Committee Memberships**- ICHMT CHT'01 an international symposium on Advances in Computational Heat Transfer.
- ICHMT CHT'04 an international symposium on Advances in Computational Heat Transfer.
- ICHMT Third International Symposium on Radiative Transfer.
- First Asian Symposium on Computational Heat Transfer and Fluid Flow, October 18 – 21, 2007, Xi’an, China.
- Fifth International Conference on Computational Heat and Mass Transfer, June 18-22, 2007, Canmore, Alberta, Canada.
- Seventh International Conference on Computational Heat and Mass Transfer, July 18-22, 2011, Istanbul, Turkey.
- 2011 International Workshop on Heat Transfer Advances for Energy Conservation and Pollution Control, October 17-20, 2011, Xi’an, Shaanxi, China.
- ICHMT CHT'12 an international symposium on Advances in Computational Heat Transfer, July 1 – 6, 2012, Bath, UK.
- Heat Transfer 2012, June 27 – 29, 2012, Split, Croatia.
- IWHT2013, Second International Workshop on Heat Transfer Advances for Energy Conservation and Pollution Control, October 18 – 21, 2013, Xi’an, Shaanxi, China.
- ICHMT CHT'15 an international symposium on Advances in Computational Heat Transfer, May 25 – 30, 2015, Rutgers University, Piscataway, USA.

## Research Degree Supervision

I am interested supervising PhD research within my area of expertise, namely, developments of numerical procedures for complex transport phenomena and processes. Application to the oil and gas industry is of particular interests.

### Current opportunities

**Studentship**- Novel Numerical Methods for Additive Manufacturing (3D Printing) of Dissimilar Materials- Please contact this member of staff to discuss possible opportunities.