Outputs (12)

Mixing Enhancement Study in Axisymmetric Trapped-Vortex Combustor for Propane, Ammonia and Hydrogen (2024)
Journal Article
Uluk, H. S., Dakka, S. M., & Singh, K. (2024). Mixing Enhancement Study in Axisymmetric Trapped-Vortex Combustor for Propane, Ammonia and Hydrogen. Modelling, 5(2), 600-624. https://doi.org/10.3390/modelling5020032

The trapped-vortex combustor (TVC) is an alternative combustor design to conventional aeroengine combustors. The separate fuel and air injection of this combustor and its compact design make it a perfect candidate for conventional fuel usage. Moreove... Read More about Mixing Enhancement Study in Axisymmetric Trapped-Vortex Combustor for Propane, Ammonia and Hydrogen.

Experimental and Numerical Investigation of Cylindrical and Shaped Cooling Holes With Forward and Reverse Injection (2024)
Journal Article
Gaurav, R., Singh, A. K., Singh, K., & Singh, D. (2024). Experimental and Numerical Investigation of Cylindrical and Shaped Cooling Holes With Forward and Reverse Injection. Heat Transfer Engineering, https://doi.org/10.1080/01457632.2024.2317612

The present work proposes a suitable injection hole configuration of cylinder and laidback fan-shaped with forward and reverse direction for film cooling of a gas turbine blades application, based on experimental and numerical analysis. The experimen... Read More about Experimental and Numerical Investigation of Cylindrical and Shaped Cooling Holes With Forward and Reverse Injection.

Experimental and numerical study on the heat transfer of a flat plate impinged by air-water mist jet (2023)
Journal Article
Singh, D., Khangembam, C., Singh, K., & Ganatra, K. A. (2023). Experimental and numerical study on the heat transfer of a flat plate impinged by air-water mist jet. Heat and Mass Transfer, 60, 167-193. https://doi.org/10.1007/s00231-023-03425-0

The present work focuses on the experimental and numerical investigation of air-water mist jet impingement heat transfer from a heated flat plate. The heated flat plate is constructed from a 25μm Stainless steel-304 foil, and the temperature distribu... Read More about Experimental and numerical study on the heat transfer of a flat plate impinged by air-water mist jet.

Experimental and numerical investigation of pool boiling heat transfer from finned surfaces (2023)
Journal Article
Jaswal, R., Sathyabhama, A., Singh, K., & Yandapalli, A. P. (2023). Experimental and numerical investigation of pool boiling heat transfer from finned surfaces. Applied Thermal Engineering, 233, Article 121167. https://doi.org/10.1016/j.applthermaleng.2023.121167

An experimental study of the pool boiling process on three test surfaces, namely, Plain surface, Rectangular finned surface, and Trapezoidal finned surface, was carried out using distilled water as the working fluid at atmospheric pressure. A paramet... Read More about Experimental and numerical investigation of pool boiling heat transfer from finned surfaces.

Computational study of free surface film flow and subsequent disintegration of a sheet and ligaments into droplets from a rotary disk atomizer (2023)
Journal Article
Singh, K., Ambrose, S., Jefferson-Loveday, R., Nicoli, A., & Mouvanal, S. (2023). Computational study of free surface film flow and subsequent disintegration of a sheet and ligaments into droplets from a rotary disk atomizer. Engineering Applications of Computational Fluid Mechanics, 17(1), Article 2162971. https://doi.org/10.1080/19942060.2022.2162971

In the present study, a computational methodology based on computational fluid dynamics (CFD) is developed to investigate free surface film flow and its subsequent disintegration on a rotary disk atomizer. The present study provides an insight into e... Read More about Computational study of free surface film flow and subsequent disintegration of a sheet and ligaments into droplets from a rotary disk atomizer.

COUPLED EULERIAN THIN FILM MODEL AND LAGRANGIAN DISCRETE PHASE MODEL TO PREDICT FILM THICKNESS INSIDE AN AERO-ENGINE BEARING CHAMBER (2022)
Presentation / Conference Contribution
Mouvanal, S., Singh, K., Jefferson-Loveday, R., Ambrose, S., Eastwick, C., Johnson, K., & Jacobs, A. (2022). COUPLED EULERIAN THIN FILM MODEL AND LAGRANGIAN DISCRETE PHASE MODEL TO PREDICT FILM THICKNESS INSIDE AN AERO-ENGINE BEARING CHAMBER. In Proceedings of Global Power and Propulsion Society. https://doi.org/10.33737/gpps22-tc-68

In aero-engine bearing chambers, two-phase shearing flows are difficult to predict as Computational Fluid Dynamics (CFD) RANS models tend to overestimate interfacial turbulence levels, leading to inaccuracies in the modelling of the flow. Turbulence... Read More about COUPLED EULERIAN THIN FILM MODEL AND LAGRANGIAN DISCRETE PHASE MODEL TO PREDICT FILM THICKNESS INSIDE AN AERO-ENGINE BEARING CHAMBER.

Predictions of falling wavy films based on the depth averaged thin film model and its application to aeroengine bearing chamber (2022)
Presentation / Conference Contribution
Singh, K., Nicoli, A., Jefferson-Loveday, R., Ambrose, S., Paleo Cageao, P., Johnson, K., …Jacobs, A. (2022). Predictions of falling wavy films based on the depth averaged thin film model and its application to aeroengine bearing chamber. . https://doi.org/10.1115/gt2022-78010

In the present study, the evolution of a falling wavy film with upstream forced excitation is investigated using the depth averaged thin film model, known as Eulerian Thin Film Model (ETFM). Because of the depth averaging of the governing equations,... Read More about Predictions of falling wavy films based on the depth averaged thin film model and its application to aeroengine bearing chamber.

Numerical Simulation of Multi-Scale Oil Films on a Rotating Cup Using VOF and Coupled Eulerian Thin-Film-DPM Approaches (2022)
Presentation / Conference Contribution
Nicoli, A., Singh, K., Jefferson-Loveday, R., Ambrose, S., & Mouvanal, S. (2022). Numerical Simulation of Multi-Scale Oil Films on a Rotating Cup Using VOF and Coupled Eulerian Thin-Film-DPM Approaches. In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. https://doi.org/10.1115/gt2022-82533

In this study, the newly developed Nottingham Gas Turbine and Transmission Research Centre (G2TRC) Bearing Chamber Test Module is presented and investigated computationally. The module houses a rotating cup and shaft configuration in order to simulat... Read More about Numerical Simulation of Multi-Scale Oil Films on a Rotating Cup Using VOF and Coupled Eulerian Thin-Film-DPM Approaches.

Combined film and impingement cooling of flat plate with reverse cooling hole (2022)
Journal Article
Singh, K., & raj, U. (2023). Combined film and impingement cooling of flat plate with reverse cooling hole. Applied Thermal Engineering, 208, Article 118224. https://doi.org/10.1016/j.applthermaleng.2022.118224

A numerical model is developed in the present work for analysing cooling performance of combined impingement-film cooling under realistic engine operating conditions. Effect of jet impingement along with the film cooling is analysed on fluid flow, he... Read More about Combined film and impingement cooling of flat plate with reverse cooling hole.

Modeling of Partially Wetting Liquid Film Using an Enhanced Thin Film Model for Aero-Engine Bearing Chamber Applications (2021)
Journal Article
Singh, K., Sharabi, M., Jefferson-Loveday, R., Ambrose, S., Eastwick, C., Cao, J., & Jacobs, A. (2021). Modeling of Partially Wetting Liquid Film Using an Enhanced Thin Film Model for Aero-Engine Bearing Chamber Applications. Journal of Engineering for Gas Turbines and Power, 143(4), Article 041001. https://doi.org/10.1115/1.4049663

In the case of aero-engine, thin lubricating film servers dual purpose of lubrication and cooling. Prediction of dry patches or lubricant starved region in bearing or bearing chambers are required for safe operation of these components. In this work,... Read More about Modeling of Partially Wetting Liquid Film Using an Enhanced Thin Film Model for Aero-Engine Bearing Chamber Applications.