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385 articles for “Velocities”
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Design conceptualization and computational analysis of cryogenic engine nozzle -ABYOM
Abstract: The main purpose of this paper is to design a cryogenic engine nozzle with specified dimensions using CATIA V5 software and analyze the nozzle using ANSYS software. The realizable k-ε viscous model was used for calculation and the Hydrogen (H2) had retained as an ideal gas. The CFD simulations were done on the nozzle to find the pressure, density, velocity, and temperature. In the graph, there are 500 points streamlined …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 2, 2022 · pp. 14–23 Read article
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CFD simulation of methane flow through an orifice plate
Abstract: In this paper the effects of errors in the flow rate and discharge coefficient when Methane (CH4) flow through orifice plates with flange tapping has been investigated by the Computational Fluid Dynamics (CFD). The location of vena- contracta was also estimated from CFD simulations. Outcomes of the CFD simulations are in terms of profiles of pressure and velocity. In this study a numerical investigation of the flow characteristics behavior caused …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 1–6 Read article
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A New Description of Multi-phase Flow Behavior at Boundary Layers of Low-permeability Porous Media
Abstract: At present, the recovery factor of low permeability oilfield in China is only about 20%, which is enormously lower than the recovery factor index of 60% by using water-chemical flooding in medium and high permeability layer. There are a lot of causes that resulted in low recovery factor, among them that the complex pore structure, tiny throat, large pore throat ratio and non-Darcy flow in low-permeability oil layer are the …
Published in Journal of Petroleum Engineering & Technology · Vol. 3, Issue 1, 2013 · pp. 1–7 Read article
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Analysis of VLSI Circuits Designed with Single and Dual Channel Strained Silicon MOSFETs in Nanoregime
Abstract: In this paper, performance of the VLSI circuits designed with strained silicon MOSFETs is analysed andcompared with bulk MOSFET. Emphasis is being given on the evaluation of speed, power and noisecharacteristics. An inverter circuit designed with single channel and dual channel biaxial strained MOSFETsof 40 nm channel length and 0.3 germanium mole-fraction is being taken to evaluate the performance throughsimulation. The device design and circuit simulation is done in Sentaurus …
Published in Journal of VLSI Design Tools and Technology · Vol. 1, Issue 1-2-3, 2011 · pp. 15–20 Read article
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Modeling and Simulation to Monitor Dissolved Nitrogen Depositions in Eleme Streams, River State
Abstract: This paper monitor the dissolved nitrogen deposition in stream, the study observed high rate of nitrogen content in the stream, the result from physiochemical analysis shows the rate and variation of nitrogen concentration, this pollution content were monitored applying modeling and simulation, the predictive values were generated from different stations, the result shows decreasing rate of dissolved nitrogen from all the stations, the results expresses in every points of observation …
Published in Journal of Water Resource Engineering and Management · Vol. 7, Issue 2, 2020 · pp. 23–37 Read article
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ASSESSMENT OF BUILDING AGAINST FLOOD
Abstract: Flood problem is vital problem for building, railway track, highway etc. Thrust of water due to standing water & velocity of flow taken place on building i.e. above G.L. & below G.L. due to percolation of water. If 70 cm thick layer of silty sand is spread all around the building the percolation of water below G.L. is prevented. Here analysis is made due to thrust taking place of water …
Published in Journal of Water Resource Engineering and Management · Vol. 9, Issue 1, 2022 · pp. 8–18 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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Research on Turbine Volute by Varying Different Mass Flow Rate using CFX
Abstract: The volute is a necessary component in the centrifugal machines. Low efficiency is the fundamental disadvantage of a radial flow turbine, no matter the turbine being an essential low-cost technology for hydropower generation. Poor flow profile has been mentioned by way of different radial flow turbine overall performance investigators as one of the reasons for the underperformance. Improving its overall performance is a tremendous way to enhance the total performance …
Published in Recent Trends in Fluid Mechanics · Vol. 6, Issue 2, 2019 · pp. 28–39 Read article
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Computational Investigation of Drag Reduction by means of Two-Dimensional Roughness Element on the Suction Surface of an Airfoil
Abstract: Computational investigation carried out to the effects of a two-dimensional roughness element placed on the suction surface of a zero camber airfoil of 1 m chord on its performance is presented. The roughness element was placed on suction surface of the airfoil at a distance of 30% from the leading edge of the airfoil. The roughness element was in the form of a wire. The diameter of the wire was …
Published in Recent Trends in Fluid Mechanics · Vol. 9, Issue 3, 2022 · pp. 12–26 Read article
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Experimental Investigations on Concentric Flow Dry Ultrasonic Assisted Wire Electric Discharge Machining (CFDUAWEDM) Using Regression Analysis
Abstract: This paper presents an application of concentric flow mode of dry dielectric (compressed air) supply for ultrasonic assisted wire electric discharge machining process (CFDUAWEDM). The concentric flow mode of dielectric supply using ultrasonic assistance is expected to offers improved surface integrity, environmental and operator friendliness during wire electric discharge machining (WEDM) process. Experimental set up was developed wherein, the ultrasonic vibration was applied to the electrode wire using an ultrasonic …
Published in Trends in Machine design · Vol. 3, Issue 2, 2016 · pp. 33–43 Read article
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Modeling the Influence of Microcrack Healing on Deformation of Asphalt Concrete Using NDT
Abstract: Asphalt concrete pavement practices heavy loading and environmental impacts through its service life. Micro cracks usually initiate and accumulate to form various types of distresses. However, asphalt concrete has the ability of self-healing with rest periods and hot environment conditions. The mechanical properties of Asphalt concrete is complex due to its dependency of temperature, loading frequency, and strain level. In this investigation, asphalt concrete specimens of wearing, binder and base …
Published in Trends in Transport Engineering and Applications · Vol. 6, Issue 3, 2019 · pp. 37–47 Read article
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Influence of Metakaolin Content on the Properties of Pavement Quality Concrete
Abstract: The use of ordinary portland cement in infrastructure construction needs to be regularized due to sustainability issues. In this regard, there has been an emergence of supplementary cementing materials possessing pozzolanic characteristics. The objective of this paper is to partially replace the cement with metakaolin and investigate the effects of metakaolin on properties of Pavement Quality Concrete. Concrete mixtures with varying MK content of 0%, 5%, 10%, 15%, 20%, and …
Published in Trends in Transport Engineering and Applications · Vol. 8, Issue 2, 2021 · pp. 8–20 Read article
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Effect of Ultrasound and Low Level Laser Therapy on Nerve Conduction Studies in Patients with Carpal Tunnel Syndrome
Abstract: Carpal tunnel syndrome is a common entrapment neuropathy resulting from median nerve compression with the symptoms of pain, numbness and tingling in the hand and fingers. There are many conservative treatment options available for carpal tunnel syndrome. Ultrasound and low level LASER therapy are found to be one of the effective conservative treatments. The purpose of this study is to find the effect of ultrasound and low level LASER therapy …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 3, Issue 2, 2013 · pp. 9–14 Read article
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3D Finite Element Analysis of Marine Risers under Random Loads
Abstract: The dynamic response of marine risers under long crested random sea is obtained in time domain using finite element solver ABAQUS/AQUA. The response analysis is based on a simulation technique which duly considers various nonlinear effects such as relative velocity squared drag force, variable added mass due to variable submergence and nonlinearity due to large excursions. It also accounts for variable tension in the riser due to variable submergence, variable …
Published in Journal of Offshore Structure and Technology · Vol. 1, Issue 1, 2014 · pp. 46–52 Read article
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Anthropogenic Wind Mill
Abstract: Electricity can also be generated from artificially generated wind using blower. A prototype model can be developed which generates constant power from artificially generated constant flow of wind. Artificially generated air is flown through wind mill which is coupled to an alternator in such a way that constant electricity is generated. This wind mill is called the anthropogenic wind mill (AWM). Anthropogenic is basically a Greek word which means “artificial.” …
Published in Journal of Offshore Structure and Technology · Vol. 1, Issue 2, 2014 · pp. 1–7 Read article
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Nonlinear Three Dimensional Dynamic Analysis of Titanium Drilling Riser
Abstract: Titanium alloys are selected for a high-pressure drilling riser’s application due to its high specific strength, corrosion resistance, and favorable elastic properties. The qualification of this titanium alloy requires assessing its resistance to hydrogen embrittlement and stress corrosion cracking due to seawater with/without cathodic protection, evaluating its dynamic response under long crested random sea. The response analysis is based on a simulation technique which duly considers the various nonlinear effects …
Published in Journal of Offshore Structure and Technology · Vol. 2, Issue 2, 2015 · pp. 27–40 Read article
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Applications of CFD in Car Design
Abstract: Development of computational fluid dynamics has now reached a state of maturity, which enables it to stimulate the flow of past practical car design configurations. It can thus play a very useful role in car design and development. CFD codes can be used to determine different loads on car and thus provide necessary input for the structural design. They can also be used to study and optimize the flow patterns …
Published in Recent Trends in Fluid Mechanics · Vol. 2, Issue 1, 2015 · pp. 26–30 Read article
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Experimental Set Up of Optical Tomography Probe and Visualization of Characteristics of a Taylor Bubble
Abstract: Abstract Conventional methods for the detection of bubbles uses probes which physically protrude into the flow field and thus may affect the flow dynamics, thereby tethering the formation, development and flow of bubbles. In thermal power plant, it is rather difficult to physically see which type of two phase flow is happening in the pipe. In such a case, an optical tomography sees its application. Depending upon the type of …
Published in Recent Trends in Fluid Mechanics · Vol. 3, Issue 3, 2016 · pp. 1–14 Read article
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Slurry Erosion Behaviour of D-Gun Sprayed Cr3C2-25NiCr and WC-12Co Coatings on CA6NM Turbine Steel Material
Abstract: In this research work, Erosive wear behaviour of hydraulic turbine material, i.e., CA6NM is investigated. The samples of alloy were coated by different powders Cr3C2-25NiCr and WC-12Co with detonation spray gun technique. Erosion tests have been conducted on self-made erosion test rig with different parameters. L9 Taguchi technique has been used for design of experiment by taking four factors viz. impact velocity, impact angle, slurry concentration and particle size. The …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 4, Issue 2, 2017 · pp. 8–17 Read article
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Experimental Investigation of a Supersonic Wind Tunnel under Different Operating Conditions
Abstract: This paper mainly describes the analysis and design of supersonic wind tunnel in order to reduce the power consumption using optimization techniques under to different operating conditions. In this analysis, a three-dimensional Navier–Stokes equation is used to investigate the flow field of a high pressure ratio centrifugal compressor for Supersonic Wind Tunnel. Such a compressor consists of a double-splitter impeller followed by a vaned diffuser. Particular attention is focused on …
Published in Trends in Mechanical Engineering & Technology · Vol. 3, Issue 1, 2013 · pp. 18–22 Read article