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dr.ir. J.B.W. Kok (Jim)

Associate Professor

Expertise

Combustors
Acoustics
Combustion Chambers
Hot Temperature
Gas Turbines
Heat Transfer
Acoustics
Combustion Chambers

Research

Research covers the fields of combustion dynamics, acoustics, heat transfer and thermodynamics. In numerical methods a compressible non-adiabatic reaction progress variable combustion model was developed that can be applied on turbulent flows with LES or RaNS approach. The experimental research includes work on an atmospheric combustor in limit cycle oscillation and a pressurized combustor using laser diagnostics and multi microphone techniques. Specific applications studied are gas turbine engine power generation and propulsion. The main theme is pressurized and atmospheric combustion of sustainable fuels in gas turbine (aero) engines and furnaces and boilers. Fuels can be low calorific gases, NH3, H2 of jet fuel. Important phenomena studied are combustion stability, transient combustion behavior and emission of toxic species

Publications

Recent
Farisco, F., Panek, L., & Kok, J. B. W. (2017). Thermo-acoustic cross-talk between cans in a can-annular combustor. International journal of spray and combustion dynamics, 9(4), 452-469. DOI: 10.1177/1756827717716373
Mahiques, E. I., Dederichs, S., Beck, R. C. R., Kaufmann, P., & Kok, J. B. W. (2017). Coupling multicomponent droplet evaporation and tabulated chemistry combustion models for large-eddy simulations. International journal of heat and mass transfer, 104, 51-70. DOI: 10.1016/j.ijheatmasstransfer.2016.07.099
Gövert, S., Mira, D., Zavala-Ake, M., Kok, J. B. W., Vázquez, M., & Houzeaux, G. (2017). Heat loss prediction of a confined premixed jet flame using a conjugate heat transfer approach. International journal of heat and mass transfer, 107, 882-894. DOI: 10.1016/j.ijheatmasstransfer.2016.10.122
Farle, A., Boatemaa, L., Shen, L., Gövert, S., Kok, J. B. W., Bosch, M., ... Sloof, W. G. (2016). Demonstrating the self-healing behaviour of some selected ceramics under combustion chamber conditions. Smart materials & structures, 25(8), [084019]. DOI: 10.1088/0964-1726/25/8/084019
Gruhlke, P., Mahiques, E. I., Meisl, J., Kaufmann, P., Kempf, A., & Kok, J. B. W. (2016). The acoustic response of reacting sprays in cross flow models to forced excitations. In ICSV 2016 - 23rd International Congress on Sound and Vibration: From Ancient to Modern Acoustics International Institute of Acoustics and Vibrations.

UT Research Information System

Contact Details

Visiting Address

University of Twente
Faculty of Engineering Technology
Horst Complex (building no. 20), room N230
De Horst 2
7522LW  Enschede
The Netherlands

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Mailing Address

University of Twente
Faculty of Engineering Technology
Horst Complex  N230
P.O. Box 217
7500 AE Enschede
The Netherlands