NUMERICAL SIMULATION ON PERFORMANCE ENHANCEMENT IN AXIAL FLOW TURBINES USING VENTURI-INTEGRATED BLADE DESIGN Journal of Engineering Science and Technology, 2025
A comprehensive study of recent studies on the efficiency of axial flow turbines with an investigation on blade profile modifications in stator and rotor assemblies P N Vasanth Sudarshan, Madhesh Devasenan Wind Engineering, 2025 Axial flow turbines are crucial in energy production and propulsion across diverse applications. As global energy needs rise, optimizing turbine efficiency is paramount. This review delves into the aerodynamic design of turbine blades, specifically examining blade profile modifications in both stator and rotor assemblies of state-of-the-art models proposed in the studies from 2019 to 2024. The focus is on mitigating performance discrepancies between idealized simulations and real-world applications, which present significant challenges such as inconsistencies in computational fluid dynamics (CFD) predictions and manufacturing constraints. Key findings from this review highlight a potential efficiency gain of 1%–3% through optimal blade designs that reduce incidence losses, secondary flows, and tip vortex formation. Advanced modeling techniques, including high-fidelity, multi-objective optimization with machine learning, are evolving to better predict and enhance turbine performance. However, gaps remain in system-level integration and the limited experimental data restricts comprehensive validation of these new designs. The insights from this review will aid the research community by identifying critical areas for future investigation, such as integrating blade aerodynamics with heat transfer and structural mechanics. Further, it emphasizes the need for exploring combinations of passive and active flow control strategies to fully harness the benefits of blade profile enhancements. These efforts are crucial for achieving substantial improvements in turbine efficiency, which are essential for meeting the growing demands for sustainable and efficient energy production.
Evaluation of traditional and slotted winglets for enhanced aerodynamic efficiency Dhanya Prakash R. Babu, D. Madhesh, Inamul Hasan, R. Mukesh Physics of Fluids, 2025 Minimizing drag is a critical focus in aviation, significantly influencing energy efficiency and performance. Lift-induced drag accounts for approximately 40% of total drag during cruise flight and 80%–90% during takeoff phase. Enhancing the coefficient of lift-to-drag ratio which is also termed as aerodynamic efficiency is a proven approach to reducing energy consumption in aircraft and unmanned aerial vehicles. Wingtip devices, such as winglets, offer a practical solution by mitigating induced drag generated by wingtip vortices. This study investigates the aerodynamic performance of three configurations: a plain wing, a wing with a traditional winglet, and a wing with a slotted winglet. The analysis was conducted using computational fluid dynamics software at angles of attack ranging from −4° to 12°, with velocities of 20 and 270 m/s, corresponding to Reynolds numbers of 2.5 × 106 and 3.3 × 107, respectively. Results demonstrated that the traditional winglet achieved a 4% average improvement in aerodynamic efficiency, while the slotted winglet exhibited a 3.16% enhancement over the plain wing. Energy consumption was reduced by 4% and 3.16% with traditional and slotted winglets, respectively. These findings validate the effectiveness of winglets in improving aerodynamic efficiency and provide insight for optimizing wingtip device design.
Influence of rough surfaces on airfoil aerodynamics and the ground effect on near-wall flow Dhanya Prakash R. Babu, D. Madhesh, Inamul Hasan, R. Mukesh Physics of Fluids, 2025 Agricultural aircraft play a pivotal role in crop dusting and aerial applications of fertilizers, pesticides, and herbicides, where their close proximity to crop surfaces during operations has significant implications. These interactions affect not only crop safety and treatment efficacy but also environmental impact and operational optimization. This study investigates the aerodynamic interactions between an airfoil and a rough surface, representing crops, focusing on the dual effects of airfoil proximity on surface flow dynamics and the influence of the rough wall on airfoil aerodynamics. A computational framework employing overset (Chimera) mesh for a movable airfoil is developed and rigorously validated against experimental data. Using this validated model, we examine the aerodynamic consequences of proximity, revealing that the rough wall substantially modifies the flow field around the airfoil, altering lift and drag characteristics. Conversely, the airfoil's motion significantly influences wall shear stress and surface flow patterns on the rough wall. These findings provide new insights into the coupled dynamics of airfoil aerodynamics and wall effects, offering a basis for optimizing agricultural aircraft operations while mitigating environmental and crop impacts.
Experimental investigation of parallel type -evacuated tube solar collector using nanofluids Subramaniam Babu Sasikumar, Harikrishnan Santhanam, Muhamad Mat Noor, Madhesh Devasenan, Hafiz Muhammad Ali Energy Sources Part A Recovery Utilization and Environmental Effects, 2025 The utilization of fossil fuels can be minimized by the application of solar energy. In this paper, the performance of Parallel-Type (PT) Evacuated Tube Solar Collectors (ETSC) using Al2O3 nanoflui...
Performance Evaluation of UAV Airfoil Under Various Ground Conditions Dhanya Prakash R Babu, Madhesh Devasenan, Ganeshan Pushpanathan, Mukesh Raju Pertanika Journal of Science and Technology, 2024 Investigation of ground effects on Unmanned Aerial Vehicle (UAV) are limited. The UAV's ground effect on the water surface and irregular surfaces has not been studied well. The principal objective of this research is to apply numerical solutions to investigate the flow physics and aerodynamic characteristics of selected NACA4412 airfoil for different h/c and surface roughness conditions in the ground effect scenario. The k-ω turbulence model and compressible RANS equations are solved using the Finite Volume Method (FVM). The simulated data is authenticated with the reference data and compared with the DATCOM data. The results express that the lift coefficient variations for various surface roughness are affected by the h/c proportion. The drag coefficient for various roughness has the same pattern for different ratios and almost has the same difference from high to lower values. The result shows that the DATCOM code cannot predict the aerodynamic characteristics with ground effects.
Enhanced acetone vapour detection with fast response & recovery based on cobalt doped Zno Nanostructures Journal of Chemical and Pharmaceutical Sciences, 2016
Numerical Analysis of Divergent Duct Integrated Blade Design in Axial Flow Compressor PN Vasanth Sudarshan, D Madhesh Journal of Applied Fluid Mechanics 19 (7), 1758-1777 , 2026 2026
A comprehensive study of recent studies on the efficiency of axial flow turbines with an investigation on blade profile modifications in stator and rotor assemblies PNV Sudarshan, M Devasenan Wind Engineering 49 (2), 557-585 , 2025 2025 Citations: 4
Influence of Rough Surfaces on Airfoil Aerodynamics and the Ground Effect On Near-Wall Flow RM Dhanya Prakash R. Babu, D. Madhesh, Inamul Hasan Physics of Fluids 37 (2) , 2025 2025 Citations: 3
Evaluation of traditional and slotted winglets for enhanced aerodynamic efficiency RM Dhanya Prakash R. Babu, D. Madhesh, Inamul Hasan Physics of Fluids 37 (2) , 2025 2025 Citations: 8
Thermal intelligence: exploring AI’s role in optimizing thermal systems–a review M Devasenan, S Madhavan Interactions 245 (1), 282 , 2024 2024 Citations: 14
Addressing Marine Pollution: Prevention Techniques and Remediation Solutions D Madhesh Proceedings of AMET Global Maritime Summit 2024: Charting the Future of … , 2024 2024
Performance Evaluation of UAV Airfoil Under Various Ground Conditions DPR Babu, M Devasenan, G Pushpanathan, M Raju 2024 Citations: 1
Convective heat transfer in heat exchanger using nanofluids-a review S AR Journal of Innovation and Technology 2023 (08), 1-8 , 2023 2023 Citations: 1
Optimization of process parameters in turning operation using CNT based minimum quantity lubrication (MQL) K Jagatheesan, K Babu, D Madhesh Materials Today: Proceedings 72, 2552-2556 , 2023 2023 Citations: 5
Research Article Characterization of the Aluminium Matrix Composite Reinforced with Silicon Nitride (AA6061/Si3N4) Synthesized by the Stir Casting Route BA Kumar, MM Krishnan, AF Sahayaraj, MRA Refaai, G Yuvaraj, ... 2022
Characterization of the Aluminium Matrix Composite Reinforced with Silicon Nitride (AA6061/Si 3 N 4 ) Synthesized by the Stir Casting Route BA Kumar, MM Krishnan, AF Sahayaraj, MRA Refaai, G Yuvaraj, ... Advances in Materials Science and Engineering 2022 (1), 8761865 , 2022 2022 Citations: 48
Influence of heat storage materials in a concentrated solar absorber for space heating T Maridurai, D Madhesh, S Rajkumar, K Arul, R Subbiah, M Ravichandran Materials Today: Proceedings 59, 1425-1428 , 2022 2022 Citations: 2
Performance study on phase change material integrated solar still coupled with solar collector T Maridurai, S Rajkumar, M Arunkumar, V Mohanavel, K Arul, D Madhesh, ... Materials Today: Proceedings 59, 1319-1323 , 2022 2022 Citations: 34
Experimental investigation of machining parameter in MQL turning operation using AISI 4320 alloy steel K Jagatheesan, K Babu, D Madhesh Materials Today: Proceedings 46, 4331-4335 , 2021 2021 Citations: 10
Microstructural and mechanical properties of copper matrix composites D Madhesh, K Jagatheesan, T Sathish, K Balamanikandasuthan Materials Today: Proceedings 37, 1437-1441 , 2021 2021 Citations: 13
Experimental investigation of parallel type - evacuated tube solar collector using nanofluids MDHMA Subramaniam Babu Sasikumar , Harikrishnan Santhanam , Muhamad Mat Noor ENERGY SOURCES, PART A: RECOVERY, UTILIZATION, AND ENVIRONMENTAL EFFECTS , 2020 2020 Citations: 23
Experimental investigation of solar steam generator using nanocoating DM C. Uthirapathy , G. Swaminathan , A. Mathivanan , S.D. Kumar , G. Manikandan Materials Today: Proceedings , 2020 2020 Citations: 7
ANTI-COLLISION SYSTEM FOR FOUR WHEELERS SP Balaji, TN Aravindhan, K Prakash, E Gagan, D Madhesh International Journal of Applied Engineering Research 14 (11), 108-111 , 2019 2019
Thermal analysis of casting solidification process using numerical method D Madhesh Journal for Advanced Research in Applied Sciences 5 (4) , 2018 2018
Enhanced acetone vapour detection with fast response and recovery based on cobalt doped Zno Nanostructures D.Madhesh, S.P.Subin David, S.Kalaiselvam Journal of Chemical and Pharmaceutical Sciences 9 (4) , 2016 2016
MOST CITED SCHOLAR PUBLICATIONS
Experimental investigation on convective heat transfer and rheological characteristics of Cu–TiO2 hybrid nanofluids D Madhesh, R Parameshwaran, S Kalaiselvam Experimental Thermal and Fluid Science 52, 104-115 , 2014 2014 Citations: 461
Experimental analysis of hybrid nanofluid as a coolant D Madhesh, S Kalaiselvam Procedia engineering 97, 1667-1675 , 2014 2014 Citations: 206
Experimental study on heat transfer and rheological characteristics of hybrid nanofluids for cooling applications D Madhesh, S Kalaiselvam Journal of Experimental Nanoscience 10 (15), 1194-1213 , 2015 2015 Citations: 57
Experimental study on the heat transfer and flow properties of Ag–ethylene glycol nanofluid as a coolant D Madhesh, S Kalaiselvam Heat and Mass Transfer 50 (11), 1597-1607 , 2014 2014 Citations: 52
Characterization of the Aluminium Matrix Composite Reinforced with Silicon Nitride (AA6061/Si 3 N 4 ) Synthesized by the Stir Casting Route BA Kumar, MM Krishnan, AF Sahayaraj, MRA Refaai, G Yuvaraj, ... Advances in Materials Science and Engineering 2022 (1), 8761865 , 2022 2022 Citations: 48
Performance study on phase change material integrated solar still coupled with solar collector T Maridurai, S Rajkumar, M Arunkumar, V Mohanavel, K Arul, D Madhesh, ... Materials Today: Proceedings 59, 1319-1323 , 2022 2022 Citations: 34
Experimental studies on convective heat transfer and pressure drop characteristics of metal and metal oxide nanofluids under turbulent flow regime D Madhesh, R Parameshwaran, S Kalaiselvam Heat Transfer Engineering 37 (5), 422-434 , 2016 2016 Citations: 26
Experimental investigation of parallel type - evacuated tube solar collector using nanofluids MDHMA Subramaniam Babu Sasikumar , Harikrishnan Santhanam , Muhamad Mat Noor ENERGY SOURCES, PART A: RECOVERY, UTILIZATION, AND ENVIRONMENTAL EFFECTS , 2020 2020 Citations: 23
Preparation and Characterization of MWCNT-Water Nanofluids for Heat Transfer Applications D Madhesh, S Kalaiselvam International Journal of Advanced Mechanical Engineering 4 (2), 193-198 , 2014 2014 Citations: 16
Thermal intelligence: exploring AI’s role in optimizing thermal systems–a review M Devasenan, S Madhavan Interactions 245 (1), 282 , 2024 2024 Citations: 14
Energy efficient hybrid nanofluids for tubular cooling applications D Madhesh, S Kalaiselvam Applied Mechanics and Materials 592, 922-926 , 2014 2014 Citations: 14
Microstructural and mechanical properties of copper matrix composites D Madhesh, K Jagatheesan, T Sathish, K Balamanikandasuthan Materials Today: Proceedings 37, 1437-1441 , 2021 2021 Citations: 13
Experimental investigation of machining parameter in MQL turning operation using AISI 4320 alloy steel K Jagatheesan, K Babu, D Madhesh Materials Today: Proceedings 46, 4331-4335 , 2021 2021 Citations: 10
Evaluation of traditional and slotted winglets for enhanced aerodynamic efficiency RM Dhanya Prakash R. Babu, D. Madhesh, Inamul Hasan Physics of Fluids 37 (2) , 2025 2025 Citations: 8
Experimental investigation of solar steam generator using nanocoating DM C. Uthirapathy , G. Swaminathan , A. Mathivanan , S.D. Kumar , G. Manikandan Materials Today: Proceedings , 2020 2020 Citations: 7
Optimization of process parameters in turning operation using CNT based minimum quantity lubrication (MQL) K Jagatheesan, K Babu, D Madhesh Materials Today: Proceedings 72, 2552-2556 , 2023 2023 Citations: 5
A comprehensive study of recent studies on the efficiency of axial flow turbines with an investigation on blade profile modifications in stator and rotor assemblies PNV Sudarshan, M Devasenan Wind Engineering 49 (2), 557-585 , 2025 2025 Citations: 4
Influence of Rough Surfaces on Airfoil Aerodynamics and the Ground Effect On Near-Wall Flow RM Dhanya Prakash R. Babu, D. Madhesh, Inamul Hasan Physics of Fluids 37 (2) , 2025 2025 Citations: 3
Influence of heat storage materials in a concentrated solar absorber for space heating T Maridurai, D Madhesh, S Rajkumar, K Arul, R Subbiah, M Ravichandran Materials Today: Proceedings 59, 1425-1428 , 2022 2022 Citations: 2
Performance Evaluation of UAV Airfoil Under Various Ground Conditions DPR Babu, M Devasenan, G Pushpanathan, M Raju 2024 Citations: 1
