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81 articles for “numerical simulation”
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Software Numerical Simulation on Earth Tube Heat Exchanger Where Air as A Flow Medium
Abstract: Renewable energy is free in nature and it must be brought into application. Due to use of air conditioning and its refrigerants global warming is a serious issue. Renewable energy is the main concept of an earth tube heat exchanger, which uses the thermal energy of the ground for cooling and heating of the fluid medium. Here, air is used as fluent working medium. The air cools in summer and …
Published in International Journal of Computer Aided Manufacturing · Vol. 6, Issue 1, 2020 · pp. 19–45 Read article
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Numerical Simulation of GaAs based MISFET Photo detector for Optical Communication
Abstract: This paper presents a 2D numerical simulation and analysis of GaAs based MISFET photo detector. Numerical simulation of the performance of the device in dark and illuminated condition has been performed. Drain current increases with wavelength of operation and attains maximum value at 0.65 micron and there is a sharp fall beyond 0.85 micron which is higher cut off wavelength for the proposed structure. The device exhibits very low dark …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 2, Issue 1, 2016 · pp. 17–30 Read article
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Numerical simulation of P3HT based Organic Thin Film Transistors (OTFTs)
Abstract: This paper presents numerical simulation of P3HT based organic thin film transistors using commercially available device simulation software ATLAS from Silvaco Inc. We present a model of the P3HT based OTFTs based on the tail and the deep states, which can produce well the characteristics of the P3HT based OTFTs in both the subthreshold and the above-threshold regions. Simulation includes the hopping mobility model, Poole-Frenkel mobility model, Schottky contact, and …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 1, Issue 2, 2015 · pp. 13–20 Read article
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Compressive Behaviour of Pristine and Impacted Composite Laminates: Numerical Simulations and Experimental Studies
Abstract: To predict the compressive strength, various failure criteria studied in this article include are Tsai-Wu, Hill, Hoffman, Maximum Stress and Quadratic. The quadratic failure criterion has been implemented using PATRAN Command Language (PCL). Is observed that quadratic failure criterion provides least failure indices, employed for conservative design. The compressive strength of the pristine and impacted laminate computed using analytical experiment, and finite element analysis (Numerical) commercial packages. Experimental program employing …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 2, 2016 · pp. 19–32 Read article
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Numerical Simulations on Suitability of Blending Indian Coal during Normal Air Combustion
Abstract: The development of the country’s economy in the past decade has increased the energy consumption in India. The major source of energy in our country is combustion of fossil fuel i.e. coal. The research on pyrolysis of coal and other fossil fuels is related to unsteady state, one dimensional, variable property model of transport phenomena with inclusion of heat, mass and momentum transfers. In the present research work mainly aimed …
Published in International Journal of Polymer Science and Engineering · Vol. 4, Issue 1, 2018 · pp. 20–27 Read article
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Review on Thermoelectrical Generator and Software Analysis of Exhaust System
Abstract: In this century global warming is a very concerning issue. Vehicles are day-by-day increasing on roads, which emits harmful hot gases to environment. Due to exhaust gases and unwanted pollution TEG is a concept to utilize the heat energy of an engine for other works purposes. A major part of energy is being engaged in such issues. Here a study of conservation is being followed. TEG thermo-electric generator is a …
Published in International Journal of Mechanics and Design · Vol. 6, Issue 2, 2020 · pp. 38–45 Read article
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A REVIEW ON SOFTWARE ANALYSIS OF EARTH HEAT EXCHANGER
Abstract: Renewable energy is the best source of energy. It is abundant in nature, it’s just like a gift of god. Nowadays, heating and cooling is a major issue in environment due to global warming. A major part of energy is being engaged in such issues. So Earth tube heat exchanger is a renewable source of energy for heating and cooling of any building. An Earth Air Tube Heat Exchanger (EATHE) …
Published in International Journal of Computer Aided Manufacturing · Vol. 5, Issue 2, 2019 · pp. 26–32 Read article
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Computerized Fluent Simulation on Earth Tube Heat Exchanger Where Air as a Flow Medium
Abstract: In the present era renewable source of energy is free and abundant in nature and it must be brought into application. Due to excessive use of air conditioning systems, the chemicals cause global warming is a serious issue. The renewable energy is the main aim and objective of an earth tube heat exchanger, which uses the thermal energy of the ground for cooling and heating of the fluent. Here, Air …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 6, Issue 2, 2020 · pp. 49–68 Read article
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CFD Simulation on Ground Tube Heat Exchanger using Copper and Aluminum as Tube Material
Abstract: Renewable energy is free in nature and it must be brought into application. Due to use of air conditioning and its refrigerants global warming is a serious issue. Renewable energy is the main concept of an earth tube heat exchanger, which uses the thermal energy of the ground for cooling and heating of the fluid medium. Here, air is used as fluent working medium. The air cools in summer and …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 6, Issue 2, 2020 · pp. 49–74 Read article
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Software Simulation of Thermoelectro-Mechanical Systems: A Review
Abstract: Energy assumes a fundamental part in our current circumstance. Regular another exploration comes to use the hopeless cause. In our power plant and cars loads of nuclear power delivered into air, which is squandered and produces a worldwide temperature alteration. To upgrade this cycle and for the use of energy, electro-mechanical gadgets are utilized. Electro-mechanical gadgets use the nuclear power of the exhaust nuclear power and converts it into electrical …
Published in International Journal of Mechanics and Design · Vol. 7, Issue 1, 2021 · pp. 1–7 Read article
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Computational Fluent Dynamics Simulation on Thermoelectric Generator using Air as a Flow Medium
Abstract: Energy play a major role in our life. Everyday a new research comes to recycle the waste energy. In Power plant and automobiles lots of thermal and heat energy get released into atmosphere, which is wasted and generates global warming. To enhance this process and for the utilization of energy, Thermo-electrical devices are used. Thermo-electrical devices utilize the thermal energy of the exhaust thermal energy and converts it into electrical …
Published in International Journal of Computer Aided Manufacturing · Vol. 6, Issue 2, 2020 · pp. 34–56 Read article
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CFD Study on Thermoelectric Applications for the Utilization of Waste Heat Energies
Abstract: Commonly, thermoelectric thermal devices are utilized in cooling applications where space and convey ability are significant, however they can be utilized productively in warming applications under the correct conditions. This paper clarifies the beginnings of the thermoelectric thermal devices, its applications in the public eye, and the specialized parts of the gadget. The wide range of appurtenances that the gadget requires will be talked about alongside their downsides. The single-stage …
Published in International Journal of Computer Aided Manufacturing · Vol. 7, Issue 1, 2021 Read article
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Evaluation of Various Numerical Methods in Large Scale FE Simulation Codes for 3D Crack Propagation
Abstract: In this paper, four different numerical methods implemented in the large scale simulation code LS-DYNA are evaluated to determine their abilities and limitations in fracture problems especially 3-d crack propagation problems. Similar formulations are implemented in the code ABAQUS as well. These methods are: Finite Element Method (FEM), Discrete Element Method (DEM), Element Free Galerkin (EFG) method and Extended Finite Element Method (XFEM). Their methodologies are briefly described and several …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 2, 2016 · pp. 44–66 Read article
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Effect of the Conductor Sag on the Electromagnetic Transients in High Voltage Lines
Abstract: This paper addresses the effect of the conductor sag on the electromagnetic transients in high voltage lines. A time-domain model for their simulation is presented. It yields a set of simultaneous partial differential equations governing the voltage and current distributions in terms of both the time and location, as well as the corresponding initial and boundary conditions. An efficient Mathematica code is suggested for their numerical solution. The presented model …
Published in International Journal of Analog Integrated Circuits · Vol. 10, Issue 1, 2024 · pp. 8–16 Read article
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Prediction of Hydro-dynamic Force Coefficients and Shedding Frequency during Vortex Shedding Behind a Stationary Cylinder
Abstract: Vibration of slender cylinders caused by the shedding of vortices at the wake, known as vortex induced vibrations (VIV) is a topic of great research interest, since the phenomenon can reduce the fatigue life of marine risers, which are subjected to complex flow conditions in ocean environment. This paper studies in detail the accuracy with which hydrodynamic forces are predicted by different turbulence models such as k–ε and k– ω-shear …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 4, Issue 1, 2018 · pp. 41–52 Read article
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A study on C, H and L type prismatic buildings for Synoptic wind flow.
Abstract: The atmospheric boundary layer can be defined as part of the troposphere at the lowest level which is influenced by the presence of the earth’s surface, and responds to surface forcing within a timescale of about an hour or less. The boundary layer depth might differ from hundreds of meters to a few kilometers. The wind that blows due to Atmospheric Boundary Layer is known as synoptic wind. Moreover, thunderstorms …
Published in International Journal of Construction Engineering and Planning · Vol. 6, Issue 1, 2020 · pp. 6–14 Read article
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Plasmonic Devices for Electromagnetic Wave Concentration
Abstract: The EOT effect is enhanced by the concentration of EM waves. We explored optical transmission through arrays of nanohole pairs and found that the EOT effect through subwavelength nanoholes is enhanced by the confinement of electric field, and that the transmission is substantially higher than predicted. The optical transmission capabilities of arrays of isolated nanohole pairs and bridging nanohole pairs in gold with various geometrical configurations were explored and investigated …
Published in International Journal of Applied Nanotechnology · Vol. 8, Issue 1, 2022 · pp. 23–29 Read article
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Computational Analysis of Shockwave–Boundary Layer Interaction at Hypersonic Speeds
Abstract: Successful plan of present-day supersonic and hypersonic vehicles requires a comprehension of the physical stream field structure of shockwave–boundary-layer interactions (SWBLIs) and productive reproduction techniques for their portrayal. The significant focal point of this paper is two-dimensional (2D) hypersonic SBLI as well as stream portrayal and physical properties around SWBLIs; be that as it may, even in ostensibly 2D/axis-symmetric streams, the mean stream measurements might be 3D.The objective of the …
Published in International Journal of Computer Aided Manufacturing · Vol. 5, Issue 2, 2019 · pp. 1–25 Read article
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Predicting the Influence of Permeability’s on Settlement of Shallow Foundation
Abstract: Foundation settlement rose as soil permeability increased, excess pore pressure increased with depth, and decreased as shear modulus increased. The expanding soil cycle (shrinkage and expansion) that is principally responsible for foundation settlement is strongly related to water content. The application of modeling and simulation was used to monitor the effect of various soil properties on foundation settlement. But the focus of this study is on Permeability including other soil …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 9, Issue 1, 2023 · pp. 36–54 Read article
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Modeling and Simulation of n-ZnO/i-ZnO/Si p-i-n Heterojunction Solar Cell
Abstract: This paper presents 2D numerical simulation of n-ZnO/i-ZnO/p-Si p-i-n heterojunction solar cell using commercial device simulation software ATLAS from Silvaco Inc. This work deals with the design and performance optimization of p-i-n heterojunction solar cell using two dimensional computer aided design (TCAD) tool ATLAS from Silvaco Inc. The device has been simulated and analyzed with respect to the I-V characteristics of the device in dark and illuminated condition. Further figure …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 2, Issue 2, 2016 · pp. 1–7 Read article