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

Combustors

Acoustics

Gas Turbines

Heat Transfer

Fluid Structure Interaction

Gases

Combustion Chambers

Computational Fluid Dynamics

Faculty of Engineering Technology (ET), Thermal Engineering (THW)

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

Shahi, M., Kok, J. B. W., Roman Casado, J. C., & Pozarlik, A. K. (2018). Strongly Coupled Fluid-Structure Interaction in a Three-Dimensional Model Combustor during Limit Cycle Oscillations. Journal of engineering for gas turbines and power, 140(6), [061505 ]. DOI: 10.1115/1.4038234

Fratalocchi, V., & Kok, J. B. W. (2018). Ethanol turbulent spray flame response to gas velocity modulation. Combustion Theory and Modelling, 22(1), 91-109. DOI: 10.1080/13647830.2017.1377848

Gövert, S., Mira, D., Kok, J. B. W., Vázquez, M., & Houzeaux, G. (2018). The Effect of Partial Premixing and Heat Loss on the Reacting Flow Field Prediction of a Swirl Stabilized Gas Turbine Model Combustor. Flow, turbulence and combustion, 100, 503-534. DOI: 10.1007/s10494-017-9848-4

Fratalocchi, V., & Kok, J. B. W. (2017). The CSP/PSR approach in reduced chemistry of premixed ammonia combustion. Energy procedia, 142, 4145-4150. DOI: 10.1016/j.egypro.2017.12.338

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

Fratalocchi, V., & Kok, J. B. W. (2017). The Computational Singular Perturbation/Perfectly Stirred Reactor Approach in Reduced Chemistry of Premixed Ethanol Combustion. Combustion science and technology, 189(10), 1659-1680. DOI: 10.1080/00102202.2017.1316266

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.

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