Publications

Journal Articles

Masoodi F. A., Goyal, R., 2024, "Aspects of vortex breakdown phenomenon in hydraulic turbines", Experimental Thermal and Fluid Science, Vol. 150 (111051). https://doi.org/10.1016/j.expthermflusci.2023.111051
Vishnu Namboodiri, V., Goyal, R., 2023, "Benchmarking the darrieus wind turbine configurations through review and data envelopment analysis", Clean Technologies and Environmental Policy. https://doi.org/10.1007/s10098-023-02554-8
P. R., Raveesh, G., Pal, K., Goyal, R., Tyagi, S.K., 2023 “Production of biomass derived highly porous activated carbon: A solution towards in-situ burning of crop residues in India,” Bioresource Technology Reports, Vol. 22, https://doi.org/10.1016/j.biteb.2023.101425

Chirwa, D., Goyal, R., Mulenga, E., 2023, “Floating solar photovoltaic (FSPV) potential in Zambia: Case studies on six hydropower power plant reservoirs”, Renewable Energy Focus, Vol. 44 (344-356), https://doi.org/10.1016/j.ref.2023.01.007

Raveesh, G., Goyal, R., Tyagi, S.K., 2023, “ Parametric Analysis of Atmospheric Water Generation System and its Viability in Indian Cities”, Thermal Science and Engineering Progress, https://doi.org/10.1016/j.tsep.2023.101682

Goyal, R., Cervantes, M. J., Masoodi, F. A., and Sahu, P., 2023, "A Study of the VelocityField During Mitigation of Vortex Breakdown in Model Francis Turbine at High Load," Journal of Fluids Engineering, Vol. 145(4): 041203. https://doi.org/10.1115/1.4056614

Raveesh, G., Goyal, R., Tyagi, S.K., 2021, “Advances in atmospheric water generation technologies”, Energy Conversion and Management, Vol. 239, 114226. https://doi.org/10.1016/j.enconman.2021.114226

Goyal, R., 2021, “Uncertainty Estimation in Calibration of Instruments of Model Francis Turbine Test Facility”, Flow Measurements and Instruments, Vol. 79, 101911. https://doi.org/10.1016/j.flowmeasinst.2021.101911

Goyal, R., 2020, “Vortex Core Formation in a Francis Turbine during Transient Operation from Best Efficiency Point to High Load”, Physics of Fluids, Vol. 32, pp.074109. https://doi.org/10.1063/5.0012227

Goyal, R., Cervantes, M. J., Gandhi, B. K., 2019, “Synchronized PIV and pressure measurements on a model Francis turbine during start-up”, Journal of Hydraulic Research, Vol. 58 (70-86). doi.org/10.1080/00221686.2018.1555551

Goyal, R., Gandhi, B. K., Cervantes, M. J., 2018, “Experimental study of Mitigation of a spiral vortex breakdown at high Reynolds number under an adverse pressure gradient,” Physics of Fluids, Vol. 29, pp. 104104-1-19. https://doi.org/10.1063/1.4999123 [Note: This research paper was highlighted as an important experimental finding by the American Institute of Physics (AIP) and a featured article was written by editorial panel as: “Detailed Images of Hydropower Turbines reveals a region vital to a Destructive Phenomenon” (Mark Bello)]

Goyal, R., Gandhi, B. K., Cervantes, M. J., 2018, “Particle Image velocimetry measurements in Francis turbine: A review and application to transient operations, Renewable and Sustainable Energy, Vol. 81 (2), pp. 2976-2991. http://dx.doi.org/10.1016/j.rser.2017.06.108

Goyal, R., Gandhi, B. K., 2017, “Review of hydrodynamics instabilities in Francis turbineduring off design and transient operations, Renewable Energy, Vol. 116, pp. 697-709. https://doi.org/10.1016/j.renene.2017.10.012

Deyou L., Hongjie W., Zhenggui, L., Torbjorn K. N., Goyal, R., Xianzhu W., Daqing Q., 2017, “Transient characteristics during the closure of guide vanes in a pump-turbine in pump mode, Renewable energy, 118, 973-983. https://doi.org/10.1016/j.renene.2017.10.088

Goyal, R., Cervantes, M. J., Gandhi, B. K., 2016, “Vortex rope formation in a high head model Francis turbine”, ASME Journal of Fluids Engineering, 139 (4), pp.041102-1-14. DOI: 10.1115/1.4035224

Goyal, R., Trivedi, C., Gandhi, B. K., Cervantes, M. J., Dahlhaug, O. G., 2016, “Transient pressure measurements at part load operating condition of a high head model Francis turbine”, Sadhana, vol. 41 (11). pp. 1311-1320. DOI 10.1007/s12046-016-0556-x

Goyal. R., Trivedi, C., Gandhi, B., K., Cervantes, M., 2017, “Numerical simulation and validation of a high head model Francis turbine at part load Operating Condition”, Journal of The Institution of Engineers (India): Series C, Vol. 99 (5), pp. 557-570, DOI 10.1007/s40032-017-0380-z

Goyal, R., Bergan, C., Cervantes, M. J., Gandhi B. K., Dahlhaug. O. G., 2016, “Experimental investigation on a high head model Francis turbine during load rejection”, IOP Conf. Series: Earth and Environmental Science, Vol. 49:082004. DOI: 10.1088/1755-1315/49/8/082004

Bergan, C., Goyal, R., Cervantes, M. J., Dahlhaug. O. G., 2016, “Experimental investigation of a high head model Francis turbine during steady-state operation at off-design conditions”, IOP Conf. Series: Earth and Environmental Science , Vol. 49:062018. DOI: 10.1088/1755-1315/49/6/062018

Goyal, R., Cervantes, M. J., Gandhi, B. K., 2017, “Characteristics of Synchronous and Asynchronous modes of fluctuations in Francis turbine draft tube during load variation”, International Journal of Fluid Machinery and Systems, Vol. 10 (2), pp. 164-175. DOI: http://dx.doi.org/10.5293/IJFMS.2017.10.2.164

Goyal, R., Gandhi, B. K., Cervantes, M. J., 2018, “Transient Pressure Measurements in the Vaneless Space of a Francis Turbine during Load Acceptances from Minimum Load,” Journal of Physics Conference Series , Vol. 1042 (1):012009. DOI 10.1088/1742-6596/1042/1/012009

Goyal, R., Gandhi, B. K., Cervantes, M. J., 2019, “Measurements on a Model Francis Turbine during Start-Stop,” International Journal of Fluid Machinery and Systems , Vol. 12(3), pp. 217-227. DOI https://doi.org/10.5293/IJFMS.2019.12.3.217

CONFERENCES/ WORKSHOP PROCEEDINGS

Pandey, A., Goyal, R., 2023, “ Wear behavior of bare and coated 18Cr8Ni turbine steel exposed to sediment erosion: A comparative analysis”, Proceedings of the Current Research in Hydropower Technologies, CRHT - XI. KU, Nepal, March 27, 2023.
Raveesh, G., Goyal, R., Tyagi, S.K., 2023, “ Atmospheric water generation: concepts and challenges”, Thermopedia. https://dx.doi.org/10.1615/thermopedia.010265
Sharma, R. K., V. Namboodiri V, Rathore, S. S., and Goyal, R., "Short-term wind speed prediction using Bayesian optimized LSTM network," IEEE International Power and Renewable Energy Conference (IPRECON), Kollam, India, 2022, pp. 1-6. DOI: 10.1109/IPRECON55716.2022.10059475
Namboodiri, V. V., Goyal, R., 2022, “ Influence of Number of Turbine Rotations on Numerical Prediction Accuracy of a Three Bladed NACA0021 VAWT,” Proceedings of the 9th International and 49th National Conference on Fluid Mechanics and Fluid Power (FMFP), December 14-16, 2022, IIT Roorkee, Roorkee-247667, Uttarakhand, India.
Sharma, D., Goyal, R., 2022, “ Numerical Simulation and Validation of NACA0012 Airfoil to Predict its Performance during the Stalling Condition,” Proceedings of the 9th International and 49th National Conference on Fluid Mechanics and Fluid Power (FMFP), December 14-16, 2022, IIT Roorkee, Roorkee-247667, Uttarakhand, India.
Masoodi, F. A., Goyal, R., 2022, “ Capability assessment of URANS turbulence models for simulation of vortex rope related flow defect in a model Francis turbine ,” Proceedings of the 9th International and 49th National Conference on Fluid Mechanics and Fluid Power (FMFP), December 14-16, 2022, IIT Roorkee, Roorkee-247667, Uttarakhand, India.
Raveesh, G., Goyal, R., Tyagi, S.K., 2022, “ Viability of Atmospheric Water Generation as a supplement water source to address the urban water crisis in India: A case study”, 4th International Conference on Advances in Mechanical Engineering (ICAME 2022), SRM Institute of Science and Technology, Chennai, March 24-26, 2022.
Namboodiri, V., Goyal, R., 2022, Ultra-Short Term Wind Speed Forecasting using Wavelet Transforms and Artificial Neural Networks”, 4th International Conference on Advances in Mechanical Engineering (ICAME 2022), SRM Institute of Science and Technology, Chennai, March 24-26, 2022.
Masoodi, F. A. and Goyal, R, 2021, “Efficacy of ancillary fluid injection technique for mitigation of vortex rope in hydraulic turbines: A review”, Materials Today: Proceedings, Vol. 47(11), pp. 3043-3053, https://doi.org/10.1016/j.matpr.2021.05.618
Dewan, A., Gautam, A., Goyal, R, 2021, “Savonius wind turbines: A review of recent advances in design and performance enhancements”, Materials Today: Proceedings, Vol. 47(11), pp. 2976-2983, ISSN 2214-7853. https://doi.org/10.1016/j.matpr.2021.05.205.
Kumar, S., Khullar, S., Goyal, R., Gandhi B. K., 2019, “POD analysis of Turbulent Swirling Flow in a Francis Turbine during Part Load Operation,” Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019), pp. 941-946, ISBN :978-1-56700-496-0. DOI: 10.1615/IHMTC-2019.1580
Kumar, S., Goyal, R., Gandhi B. K., Cervantes, M. J., 2018, “Experimental Investigations of a Draft Tube Flow Field in a Francis Turbine during Part Load Operation,” Proceedings of the 7th International and 45th National Conference on Fluid Mechanics and Fluid Power, December 10-12, 2018, IIT Bombay, India.
Goyal, R., Gandhi B. K., Cervantes, M. J., 2018, “Experimental Investigation of a High Head Francis Turbine Model during Shutdown Operation”, Proceedings of 29th IAHR symposium on Hydraulic Machinery and Systems, Sept 16-21, 2018, Japan.
Goyal, R., Gandhi, B. K., Cervantes, M. J., 2018, “Transient Pressure Measurements in the Vaneless Space of a Francis Turbine during Load Acceptances from Minimum Load,” Proceedings of the International Symposium on Current Research in Hydraulic Turbines, March 20, 2018, Turbine Testing Lab, Kathmandu University, Dhulikhel, Nepal.
Goyal, R., Gandhi B. K., Cervantes, M. J., 2017, “A Posteriori Uncertainty Quantification of PIV Measurements in the Francis Turbine,” Proceedings of 44th National Conference on Fluid Mechanics and Fluid Power, December 14-16, 2017, Amrita University, Amritapuri Campus, Kollam, Kerala, India.
Goyal, R., Gandhi, B. K., Cervantes, M. J., 2016, “Numerical prediction of rotating vortex rope in a high head model Francis turbine,” Proceedings of the 6th International and 43rd National Conference on Fluid Mechanics and Fluid Power, December 15-17, 2016, MNNITA, Allahabad, U.P., India.
Goyal, R., Gandhi, B. K., Cervantes, M. J., 2016, “2D PIV and pressure measurements on a Francis turbine at high load operating conditions,” Proceedings of the 6th International and 43rd National Conference on Fluid Mechanics and Fluid Power, December 15-17, 2016, MNNITA, Allahabad, U.P., India.
Gandhi, B. K., Goyal, R., 2016, “Renovation, Modernization and Uprating of Old Hydro Power Stations-Problems and Remedies, Technical paper in workshop on RMU&LE of Hydro Power Plants-Diverse Issues & Handling Strategies, December 16, Hydro Engineering and Renovation & Modernization Division, New Delhi, Central Electricity Authority, Ministry of Power, Government of India.
Bergan, C., Goyal, R., Cervantes, M. J., Dahlhaug. O. G., 2016, “Experimental investigation of a high head model Francis turbine during steady-state operation at off-design conditions”, 28th IAHR symposium on Hydraulic Machinery and Systems, 4-8 July 2016, Grenoble, France.
Goyal, R., Bergan, C., Cervantes, M. J., Gandhi B. K., Dahlhaug. O. G., 2016, “Experimental investigation on a high head model Francis turbine during load rejection”, 28th IAHR symposium on Hydraulic Machinery and Systems, 4-8 July 2016, Grenoble, France.