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366 articles for “Recent Trends”
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Study of Global Solar Radiation Estimation based on Artificial Neural Networks Techniques
Abstract: AbstractSolar Radiation data received by earth in the form of x-rays, UV-rays, infrared rays is a prominent and useful data as it gives the information about the amount of energy received from sun at the earth. Artificial Neural Network (ANN) is brain inspired technology which learns and performs in a way similar to the way our human brain performs. Sun’s energy is of utmost importance and is freely available in …
Published in Recent Trends in Electronics Communication Systems · Vol. 7, Issue 1, 2020 · pp. 26–31 Read article
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House-hold Waste-water Management System
Abstract: AbstractThe wastewater quantity always exceeds the amount of water purified through R.O system in every household. This wastewater needs to be put to better use for other household activities like kitchen purposes, washroom, lawn etc. In this paper, a model consisting of integrated Programmable logic controller (PLC) and Supervisory Control and Data Acquisition (SCADA) system has been proposed to manage wastewater coming out from Reverse Osmosis (R.O) system. The PLC …
Published in Recent Trends in Electronics Communication Systems · Vol. 7, Issue 2, 2020 · pp. 1–8 Read article
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Intelligent Border Alert and Boat Security System
Abstract: AbstractNatural calamities are always miserable for the fishermen and sea travelers. In fact, they have to face plethora of systematic challenges. For instance, sudden climate changes, which will pause their further journey amidst the sea for long time without food and any external communication and will result in life threatening situations. Furthermore they failed to control the water flow inside the boat. Even though there are traditional methods by using …
Published in Recent Trends in Electronics Communication Systems · Vol. 7, Issue 2, 2020 · pp. 9–12 Read article
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Number Plate Recognition
Abstract: AbstractIn the last few decades, the number of vehicles has risen drastically. With this increase, it is difficult to keep track of every vehicle traffic management. Number Plate Recognition is employed increasingly today for toll assortment, maintaining traffic activities and enforcement. The fundamental step in Number Plate Recognition is the localization of the number plate. Number Plate Recognition localization is enforced using MATLAB and verified for its practicality. In India, …
Published in Recent Trends in Electronics Communication Systems · Vol. 7, Issue 2, 2020 · pp. 18–21 Read article
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Wind Speed Forecasting
Abstract: AbstractAs the world exhausts its non-renewable energy reservoirs, building predictive models for renewable energy dependencies comes important a fortiori. In this study we examine how well a Deep Neutral Networks performs on wind speed data in a time series forecasting. The data used are based on wind speed readings acquired at the first-of-its-kind LiDAR based offshore which is situated at the Gulf of Khambhat, Gujarat, which is about 23 km …
Published in Recent Trends in Electronics Communication Systems · Vol. 7, Issue 2, 2020 · pp. 13–17 Read article
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Numerical Investigation of Influence of Rate of Rotation on Formation of Vapor Around Two Heated Circular Cylinders Immersed in Water Inside a Channel
Abstract: AbstractThe complexity problem of fluid flow and heat transfer over an array of circular cylinders are common in industrial applications of the fluid dynamics. The complex nature of the problem encountered in industry, gives rise to certain significant dimensions in the fluid dynamics theory. Some of them are the fluid flow interaction, interferences in flow and vortex dynamics which are typically found in compact heat exchangers, cooling of electronic equipment, …
Published in Recent Trends in Fluid Mechanics · Vol. 4, Issue 3, 2017 · pp. 14–25 Read article
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Educational Research Review on the Engineering of Droplet based Microfluidics
Abstract: AbstractDroplet based microfluidics as a subject is interdisciplinary among materials science, biochemistry and microengineering, having the wide range of applications from advanced materials to biomedical sciences. Control on droplet volumes and manipulation result into coalescence, mixing and sorting for chemical reactions inside droplets under specific experimental conditions. Surface properties and geometry of the fluidic microchannels are the important factors of droplet generation. This comprehensive review on droplet based microfluidics is …
Published in Recent Trends in Fluid Mechanics · Vol. 4, Issue 3, 2017 · pp. 9–13 Read article
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Experimental Studies on the Surface-Driven Capillary Flow of Dyed Water in Multistage Microfluidic Bends
Abstract: AbstractA single three-stage and a pair of two-stage microfluidic bends are fabricated. SU-8 as negative photoresist is used to fabricate the stamp by maskless lithography and diamond like carbon (DLC) coating. Microchannel structures are fabricated using polymethylmethacrylate (PMMA) by hot embossing lithography. Direct bonding technique is used to fabricate the leakage-free sealing in microfluidic bends. The leakage-free surface-driven capillary flow is recorded by CMOS camera. This work will be useful …
Published in Recent Trends in Fluid Mechanics · Vol. 4, Issue 3, 2017 · pp. 29–34 Read article
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CFD Investigation of Volume Fraction of Nanofluid on Heat Transfer Rate in Micro Channel Heat Sink
Abstract: AbstractNew methods of removing heat from integrated chips of the electrical devices are very important. Mini channel liquid cooling is the new method by which we can remove heat from electrical devices easily. Uses of nanofluid in the mini channel liquid cooling is the experiment study. We investigated the effect of nanofluid on the heat transfer rate. We also investigated the effect of volume fraction of a nanofluid in the …
Published in Recent Trends in Fluid Mechanics · Vol. 4, Issue 3, 2017 · pp. 1–8 Read article
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Using CFD Tools Heat Exchanger Design: A Review
Abstract: AbstractIn present day, shell and tube heat exchanger is the most common type heat exchanger widely used in oil refinery and other large chemical process, because it suits high pressure application. The process in solving simulation consists of modeling and meshing the basic geometry of shell and tube heat exchanger using CFD (computational fluid dynamics) package.Keywords: CFD, heat exchanger, shell heat exchanger, tube heat exchangerCite this ArticleRaj Kumar Yadav. Using …
Published in Recent Trends in Fluid Mechanics · Vol. 4, Issue 3, 2017 · pp. 26–28 Read article
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Linear Stability Analysis on the Onset of Rayleigh-Bénard Convection in A Second-Order Fluid with Maxwell-Cattaneo Law under the Effect of Non-Uniform Temperature Gradient
Abstract: AbstractA Linear stability analysis is performed to study the effect of non-uniform temperature gradient on the onset of Rayleigh-Bénard convection in a second order fluid with Maxwell-Cattaneo law. The eigenvalue is obtained for general boundary condition on velocity and temperature using Galerkin technique. The influence of various parameters on the onset of convection has been analyzed. One linear and five non-linear temperature profiles are considered and their comparative influence on …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 1, 2018 · pp. 18–30 Read article
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Effect of Internal Heat Generation on the Onset of Rayleigh-Bѐnard Chandrashekar Convection in a Micropolar Fluid with Maxwell Cattàneo Law
Abstract: AbstractThe effect of result from the substitution of the classical Fourier law by the nonclassical Maxwell-Cattàneo law and influence of internal heat generation on the Rayleigh-Bѐnard Chandrashekar internal heat generation parameter has a significant impact on the thermal mode making the system unstable. The eigen value is obtained for free-free, rigid-free and rigid-rigid velocity boundary combinations with isothermal temperature on the spin-vanishing boundaries. The influence of various micropolar fluid parameters …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 1, 2018 · pp. 31–43 Read article
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Thermal Instability in a Second-Order Fluid under the Effects of Suction-Injection-Combination and Maxwell-Cattaneo Law
Abstract: AbstractThe onset of Rayleigh-Bénard convection in a Second-Order fluid under the effects of Suction-Injection-Combination and Maxwell-Cattaneo Law is studied. The classical Fourier law is replaced with the Non-Classical Maxwell-Cattaneo heat flux law in the energy equation. A linear stability analysis is performed to obtain the eigenvalues for free-free isothermal boundary conditions. The influence of the parameters like Cattaneo number, Prandtl number, and Visco-elastic parameter has been analysed and found that …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 1, 2018 · pp. 75–85 Read article
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Onset of Rayleigh-Bénard Convection in a Micropolar Fluid under the Influence of Temperature Modulation, Electric Field and Internal Heat
Abstract: AbstractThis paper analyses the onset of Rayleigh-Bénard convection in a micropolar fluid subject to an Imposed Time-periodic Boundary Temperature (ITBT) of small amplitude, an AC electric field along with internal heat. The temperature gradient between the walls of the fluid layer consists of a steady part and a time-dependent oscillatory part. The Venezian approach is adopted in arriving at the correction Rayleigh number. The effects of the oscillating temperature field …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 1, 2018 · pp. 44–62 Read article
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Effect of Throughflow on the Onset of Electro-Thermo Convection in a Micropolar Fluid with Maxwell-Cattaneo Law
Abstract: AbstractThe effect of throughflow on the onset of Electro-thermo convection in a micropolar fluid with Maxwell-Cattaneo law is studied using the linear theory. The eigenvalue is obtained for free-free, rigid-rigid and rigid-free velocity boundary combinations with isothermal and adiabatic on the spin-vanishing boundaries using galerkin technique. The influence of Peclet number, Electric Rayleigh number and various micropolar fluid parameters on the onset of convection has been analyzed. It is found …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 1, 2018 · pp. 1–17 Read article
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Study of Heat Transfer in a Time Dependent Vertically Oscillating Micropolar Liquid
Abstract: AbstractThe study involves the vertical time periodic vibration of the system. This leads to the appearance of a modified gravity term in basic equation, collinear with actual gravity, in the form of a time-periodic field perturbation and is termed as gravity modulation or g-jitter in the literature. The aim of this study is to find the effect of small amplitude of gravity modulation on the onset of thermal convection between …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 1, 2018 · pp. 63–74 Read article
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Study of Effectiveness of Cone Cruciform Vortex Breaker Device in Reducing the Swirl Angle by Modifying the Number of Vanes Using CFD Technique
Abstract: AbstractMany of the large-scale vertical pumps installed in various pumping stations have experienced some sort of vibration, impeller damage due to local cavitation, excessive bearing wear, or loss of pumping efficiency, combinations of which are considered to be caused primarily by undesirable pump approach flow conditions such as vortices, swirl in intake structure, and inappropriate geometrical layout surrounding the bellmouth. Conventional fixes to resolve these problems include vortex breaker devices …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 2, 2018 · pp. 36–50 Read article
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An Elementary Analysis on Ventilated Helmets Using Computational Fluid Dynamics
Abstract: AbstractThis paper focuses on the elementary analysis of a motorcycle helmet using computational fluid dynamics (CFD). The designs of the helmet chosen for the analysis are open face, closed face, and open face with human skull inside. The analysis was done on various speeds of airflow. However, in this paper we will be giving a more generalized idea considering only one velocity of the airflow. We used ANSYS (fluent) for …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 2, 2018 · pp. 1–12 Read article
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A Review on Magnetorheological Fluids and its Stabilization Techniques
Abstract: AbstractMagnetorheological fluids are fluids which can alter its physical and rheological properties in response to an external magnetic field. They find many applications in shock absorbers, semi-active dampers, clutches, brakes, haptic actuators and devices. The rheological properties of these fluids can be altered using additives in the fluid composition and hence, the limitations due to settling tendency can be reduced to an extent. Hence, a detailed study on stabilization of …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 2, 2018 · pp. 13–22 Read article
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Structural and Thermal Analysis of Ball Control Valve: A Review
Abstract: AbstractA ball valve is a type of flow control device, which is widely used to regulate a fluid flowing through a section of pipe. Currently, analyses and optimization are of special important in the design and usage of ball valves. For the analysis, finite element method (FEM) is often used to predict the safety of valve disc, and computational fluid dynamics (CFD) is commonly used to study the flow characteristics …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 2, 2018 · pp. 30–35 Read article