• Reverse osmosis membrane and module improvement roadmap for maximum impact 

  Joshi, Mrugesh; Swaminathan, Jaichander (Elsevier, 2023-05)

  Advancements in Reverse osmosis (RO) membrane modules towards lowering specific cost of pure water can be quantified in terms of two non-dimensional numbers: specific cost of membrane conductance (viz., product of membrane ...
• Superhydrophobic composite asymmetric electrospun membrane for sustainable vacuum assisted air gap membrane distillation 

  Juybari, Hamid Fattahi; Karimi, Mohammad; Srivastava, Rishabh; Swaminathan, Jaichander; Warsinger, David M. (Elsevier, 2023-05)

  Membrane distillation (MD) relies on superhydrophobic membranes that must achieve the competing goals of high liquid entry pressure (LEP) and high permeability. In this study, we developed the first superhydrophobic composite ...
• Controlled directionality in 3D printing of graphite-reinforced polymer composite with enhanced mechanical properties 

  Das, Manojit; Mishra, Rajat; Das, Palash; Kashyap, Sunil Kumar; Panda, Sushanta Kumar; Mitra, Rahul; Owuor, Peter Samora; Arora, Amit; Tiwary, Chandra Sekhar (Elsevier, 2023-04)

  In a 3D printed polymer composite, orientation of the reinforcement, distribution and porosity plays a major role in its mechanical properties. Here, we demonstrate a precisely control of the orientation of the reinforcement ...
• A quasi-implicit and coupled multiscale scheme for simulating combustion of pellets of core-shell structured intermetallic particles 

  Garai, Souritra; Sundaram, Dilip (Elsevier, 2023-04)

  A comprehensive theoretical and computational framework is developed to simulate combustion and flame propagation in a packed pellet of core-shell structured intermetallic energetic particles. A coupled multiscale approach ...
• Higher-order implicit shock-capturing scheme based on linearization of implicit fluxes for the Euler equations 

  Mittakolu, Roshith; Rani, Sarma L.; Sundaram, Dilip (Emerald, 2023-01)

  A higher-order implicit shock-capturing scheme is presented for the Euler equations based on time linearization of the implicit flux vector rather than the residual vector. The flux vector is linearized through a truncated ...
• Electrophoretic trajectories of non-uniformly charged particles in viscoelastic fluids: the weak surface charge limit 

  Borthakur, Rajnandan; Ghosh, Uddipta (Cambridge University Press, 2023-01)

  Electrophoretic motion of a particle carrying a weak but arbitrary non-uniform surface charge density in an Oldroyd-B fluid is analysed here in the thin electrical double layer limit. A semi-analytical generic framework, ...
• Dynamics of excited piecewise linear oscillators 

  Jayaprakash, K. R.; Tandel, Vaibhav; Starosvetsky, Yuli (Springer, 2022-12)

  The current work is devoted to the analytical study of the dynamics of piecewise linear (PWL) oscillators subjected to various types of excitations. Straightforward analytical study of the response of this class of strongly ...
• In situ opto-hydrodynamic characterization of lubricant-infused surface degradation 

  Lee, Junyoung; Sett, Soumyadip; Miljkovic, Nenad (American Chemical Society, 2022-12)

  Vapor condensation is widely used in industrial systems due to its effective heat and mass transfer when compared to single-phase thermal transport. In particular, dropwise condensation can significantly enhance heat ...
• Morphology of multicore compound drops in oscillatory shear flows 

  Jadhav, Sayali N.; Ghosh, Uddipta (SpringerOpen, 2022-11)

  Dynamics and morphology of two-dimensional multicore (dual and triple core) compound drops, subjected to oscillating shear flows have been addressed in this work. We use the binary-phase-field method to deduce numerical ...
• Study on control of unsteadiness and flow asymmetry in linear aerospike nozzles 

  Soman, Sandeep; Suryan, Abhilash; Nair, Prasanth P.; Ritter, Marie; Dong Kim, Heuy (American Institute of Aeronautics and Astronautics, 2023-01)

  The unsteadiness in flow over a linear aerospike nozzle is analyzed by a two-dimensional numerical simulation. Variations in the separation locations on two sides of the full-length plug nozzle, with the increase in nozzle ...
• Surface periodicity index (SPI): a measure of periodicity of surface topography 

  Gupta, Rohit; Vadali, Madhu (Elsevier, 2023-01)

  The periodicity of surface features generated by various manufacturing processes plays a vital role in the functionality of the parts. Quantifying the periodicity of such surfaces is essential, which is not effectively ...
• Modeling and performance of continuous wave laser polishing of electron beam melted Ti6Al4V 

  Hijam, Justin; Gupta, Rohit; Vadali, Madhu; Arora, Amit (Elsevier, 2022-09)

  Continuous wave laser polishing is a promising technique for post-built smoothening of rough metallic surfaces produced by additive manufacturing. In laser polishing, a laser source melts a thin surface layer and redistributes ...
• Modal analysis of mixing characteristics in scramjet combustor with passive struts 

  Nair, Prasanth P.; Suryan, Abhilash; Narayanan, Vinod (Elsevier, 2022-09)

  The combustion occurs at supersonic velocities in a scramjet engine. Since the mixing and combustion take place at high velocities, analyzing the mixing of air and fuel in the engine is of great interest for many researchers. ...
• Size reduction and enhanced power generation in ORC by vaporizing LNG at high supercritical pressure irrespective of delivery pressure 

  Joy, Jubil; Kochunni, Sarun Kumar; Chowdhury, Kanchan (Elsevier, 2022-12)

  LNG regasification terminals generate power with Organic Rankine cycle (ORC) using LNG as the heat sink. A 3-stage ORC designed for regasification pressure of 70 bar(a) produces the highest net power with appropriate ...
• How event-driven intermittent control with unstable open & closed-loop dynamics lead to bounded response in human postural control 

  Dash, Ranjita; Palanthandalam-Madapusi, Harish J. (World Scientific Publishing, 2022-08)

  Event-driven intermittent feedback control is a form of feedback control in which the variables of interest are observed continuously, but corrective control action is only initiated intermittently based on certain threshold ...
• Throwing strategy in a dual-motor-task of aiming at the bullseye while walking in virtual reality 

  Singh, Yogesh; Agrawal, Sunil K.; Vashista, Vineet (Institute of Electrical and Electronics Engineers (IEEE), 2022-10)

  Humans perform movement tasks using motor and cognitive skills. The optimum outcome of the task is dependent on how the motor and cognitive skills are combined. When a dual-task is performed, this combination becomes even ...
• Prediction and visualization of supersonic nozzle flows using OpenFOAM 

  Nair, Prasanth P; Narayanan, Vinod; Suryan, Abhilash; Kim, Heuy Dong (Springer, 2022-06)

  At low altitudes during rocket flight, the atmospheric pressure is higher compared to the design pressure of the nozzle at the exit. This leads to the formation of overexpansion shock, and consequently, flow separation. ...
• Thermotaxis of a deformable droplet in a confined Poiseuille flow 

  Panigrahi, Devi Prasad; Karan, Pratyaksh; Chakraborty, Suman (Cambridge University Press, 2022-08)

  A droplet under a thermal gradient is known to migrate in a preferential direction, as governed by the variation of its interfacial tension with temperature. Contradicting the outcome of reported asymptotic analysis, here ...
• Effect of external damping on ankle motion during the swing phase of walking 

  Jategaonkar, Chinmay; Singh, Yogesh; Vashista, Vineet (Institute of Electrical and Electronics Engineers, 2022-07)

  Manipulation of human ankle dynamics during walking is essential for a smooth gait cycle. Ankle exoskeletons have generally proven positive for rehabilitation and restoration purposes. With the focus on prolonged use of ...
• Passive exosuit emulator for material handling applications 

  Bhardwaj, Siddharth; Shinde, Akshayraj B.; Singh, Randheer; Vashista, Vineet (Institute of Electrical and Electronics Engineers (IEEE), 2022-07)

  The paper introduces a passive back-assist exosuit (BASE) emulator system for manual material handling applications. The presented emulator has a fabric brace mounted modular moment arm, onboard load cells for measuring ...

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