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385 articles for “Velocities”
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Analysis of Earth Air Heat Exchanger (EAHE) for Storage system
Abstract: Geothermal energy is one of the potential alternative sources of energy which has been successfully catering to both industrial and domestic energy requirements. The temperature of earth at a certain depth about 2 to 5 m the temperature of ground remains nearly constant throughout the year. This constant temperature is called the undisturbed temperature of earth (EUT) which remains lower than the outside temperature in summer. In this research, a …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 5, Issue 1, 2018 · pp. 1–9 Read article
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Numerical Investigation of Fluid Flow Inside A Rectangular Driven Cavity at Moderate Reynolds Numbers
Abstract: This work presents a numerical investigation of a 2-D incompressible driven cavity flow at moderate Reynolds numbers. Lid driven cavity is widely considered to be a benchmark problem because of its capability of displaying the cogency of different numerical schemes and easily analysing different fluid phenomenon in a simple geometrical arrangement. A steady numerical solution is determined using a pressure-based segregated algorithm; SIMPLE and the simulation is done in the …
Published in Journal of Aerospace Engineering & Technology · Vol. 7, Issue 3, 2017 · pp. 46–60 Read article
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Numerical Investigation of Macro Flow Dynamics of Downburst Wind Over Buildings and the Interference Effect
Abstract: A “Downburst” is an important weather phenomenon in which an air mass comes down with high velocity towards the ground from the cloud level during a Thunderstorm. Thunderstorms occur frequently in the eastern and Northeastern part of India. Thunderstorms over the Gangetic West Bengal and Assam are popularly known as ‘Kalbaishakhi’ and ‘Bardoisila’, respectively. Severe thunderstorms are known to cause detrimental impact on various facets of national activity like civil …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 1, 2018 · pp. 11–20 Read article
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A Novel Optimized Shunt Active Power Filter using GA and ANN in Constant Frequency Aircraft System
Abstract: Constant instantaneous power control strategy for extracting reference currents for shunt filters have been changed with the use of Artificial Neural Network and Genetic Algorithm primarily based controller and their performances were compared. The acute evaluation of comparison of the repayment capability mostly based on THD and velocity could be carried out, and guidelines might be given for the selection of the technique for use. The simulated effects the use …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 1, 2018 · pp. 36–43 Read article
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Numerical Study of a Turbulent Flow Past a Rotating Sphere
Abstract: To simulate the flow past various geometries using commercial codes has become a standard practice in last few years. In the present study, numerical computations have been done for the flow at high Reynolds number (Re) past a rotating sphere. The Reynolds number (Re) found to be such that it indicates that the flow is turbulent. The pressure contour, velocity vector and stream function contour has been plotted and analysed …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 1–5 Read article
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Design, Fabrication and Testing of Ejector for Solar Thermal Cooling System
Abstract: The Solar Thermal Cooling System mainly comprises of Solar Panels, Generator, Condenser and Evaporator. In addition an ejector is mounted in the existing system to improve the performance of the system. The Ejector is having a primary and secondary inlet nozzle. In the primary flow nozzle the motive refrigerant will flow with high pressure which comes from generator. The area of the ejector is reduced to increase the pressure by …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 7, Issue 1, 2020 · pp. 12–20 Read article
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The Distance Between the Two Points at Different Times is Relative
Abstract: This paper has been studied that-with respect to each other, two incidents occur at different times in the rest frame at the same points, these two events will happen at two points in moving frames with respect to each other. And the distance between these two points will be Rest time interval, Speed of light, Relative velocity Significant, the distance between these two points is Relative. Since the Lorentz factor …
Published in Journal of Aerospace Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 27–29 Read article
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Application of ANSYS in heat transfer characteristics of straight hollow tubes
Abstract: The mess analysis of straight hollow tubes have been done by many analysis software but out of all ANSYS be considered as the better due the provision of change in parameters. Therefore in the present study, ANSYS Fluent is used for the analysis of the straight tubes. ANSYS Workbench is used for the analysis. Geometry tool Design Modeler is then applied for the design of the tubes. The solution of …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 10, Issue 1, 2023 · pp. 41–52 Read article
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Effect of Different Cooling Pad Materials on the Performance of the Evaporative Cooler
Abstract: Air conditioning (AC) becomes the most necessary appliance in homes and offices in every developed and developing country for achieving the required thermal comfort condition. But the literature reveals that the excessive use of AC creates physiological discomfort such as headache, alleging symptoms (fever, cold, itching) chest pain, etc. The above mention issues may be mitigated up to a certain level by using an evaporative cooler instead of ACs. The …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 10, Issue 3, 2023 · pp. 31–35 Read article
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Monitoring and Analysis of Displacement Using InSAR Techniques for Gulaba Landslide Site
Abstract: Interferometric Synthetic Aperture Radar (InSAR) is a powerful remote sensing technique which provides high spatial resolution images with continuous temporal coverage of the earth surface data for monitoring of long-term landslide displacement. In the current study over Gulaba Camp in Manalito Marhi (Himachal Pradesh, India) region, a novel approach to monitor the landslide using the ascending and descending InSAR data sets is being implemented. 30 ascending and 23 descending Sentinel-1 …
Published in Journal of Remote Sensing & GIS · Vol. 9, Issue 2, 2018 · pp. 37–46 Read article
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Slope Stability At The Juncture Of Dredged Berth Pocket & Reclaimed Earth Embankment During Turbulence Caused by Rotation of Ship’s Propeller
Abstract: For accepting vessels with large drafted deepening of the berth pocket at any jetty is necessary by dredging. During berthing of ships, the bed soil particles in berth pocket gets eroded due to critical velocity, due to turbulence of the sea water in the pocket, caused by propeller’s motion and also due to eddies formed during trimming of vessel. Such disturbances in bed soil particles and the energy in the …
Published in Journal of Offshore Structure and Technology · Vol. 10, Issue 1, 2023 · pp. 35–40 Read article
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Assessment and Monitoring of Carbonation Ingress in Reinforced Concrete Structures: Non-Destructive Testing for Durability and Performance Evaluation
Abstract: This research addresses the urgent concern of the accelerated and premature deterioration observed in reinforced concrete (RC) structures over recent decades. Emphasizing the necessity for effective condition evaluation, the study introduces various non-destructive testing (NDT) techniques tailored for monitoring civil infrastructures. Covering key parameters crucial for performance assessment and condition monitoring, including reinforcement cover, corrosion, carbonation, chloride concentration, and concrete strength, the research employs methods such as covermeter and rebar …
Published in Journal of Offshore Structure and Technology · Vol. 10, Issue 3, 2023 · pp. 21–30 Read article
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A Brief Introduction on the Electrokinetic Mixing and Separation in Microfluidic Systems
Abstract: Electrokinetics encompasses the analysis of fluid or particle motion in the electrical field; includes electroosmosis, electrophoresis, dielectrophoresis, electro-wetting, etc. Electrokinetic applications in the production of microfluidic systems have become quite attractive over the last decade. Electro-kinetic systems usually do not need any additional mechanical moving parts and may be made compact by removing the power source with a small battery. Electro-kinetic based microfluidic systems may also serve as a feasible …
Published in Journal of Aerospace Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 24–34 Read article
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Non-Newtonian Power-law Fluid Flows for Shear Thinning Viscosity in a T junction Channel
Abstract: In this paper, non-Newtonian fluid flow behaviors are analyzed in a two-dimensional T junction channel using Lattice-Boltzmann Method (LBM). The LBM has been built up on the D2Q9 model, and the single-relaxation-time (SRT) method called the Lattice-BGK (Bhatnagar-Gross-Krook) model. The flow patterns are analogous to blood flows in branched arteries for T junction flows. Firstly, the code validation has been occurred for the Newto-nian fluid flows by comparing the accessible …
Published in Journal of Aerospace Engineering & Technology · Vol. 12, Issue 1, 2022 · pp. 18–31 Read article
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Path, Trajectory, and Deviation Calculator for Bullets
Abstract: The topic of path, trajectory, and deviation calculators for bullets is of great importance in the field of ballistics and marksmanship. Accurately estimating the flight of a bullet and its deviation from the intended target is crucial for marksmen and ballistics enthusiasts. This thesis aims to design and implement a calculator that considers various factors that influence the flight of a bullet, such as its initial velocity, air resistance, gravitational …
Published in Journal of Aerospace Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 23–36 Read article
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An Investigation on Influence of Side-wind During Parachute Deployment Process
Abstract: The 3D multi-body system dynamic simulation of the parachute deployment procedure for manned spaceflight was created using the multi-body system dynamic concept. It is made up of mass points and serious rigid bodies that are constrained in their elasticity. First, the proposed model was found to be accurate and effective based on comparisons between modelling findings and data from airdrop tests. Second, a simulation of the deployment process under various …
Published in Journal of Aerospace Engineering & Technology · Vol. 13, Issue 3, 2023 · pp. 34–42 Read article
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BIOCHEMICAL AND KINETICS STUDIES ON PROTEASE ENZYME ISOLATED FROM AYURVEDIC HERBS ALONG WITH THEIR APPLICATION STUDIES
Abstract: The objective of the present work was to conduct comprehensive biochemical and kinetic analysis of a protease enzyme extracted from two Ayurvedic herbs, namely Shankhpushpi (Convolvulus prostratus) and Mulethi (Glycyrrhiza glabra). The primary focus was to characterize various biochemical aspects of the enzyme, encompassing substrate specificity, optimal pH and temperature conditions, stability, and activation energy. Furthermore, crucial kinetic parameters such as Michaelis-Menten constant (Km) and maximum reaction velocity (Vmax) were …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 13, Issue 3, 2023 · pp. 21–37 Read article
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Five Point Circle for the Triangular Form of Double Reciprocal (Lineweaver-Burk) Plot in Enzyme Biochemistry
Abstract: The nine circle in geometry desrve significance of correlation with circumscribed circle, inscribed circle and the Euler line for a triangle. The nine significant concyclic points on the circle recognized by the triangle include: the midpoint of each side of the triangle; the foot point of each altitude and the midpoint of the line segment from each vertex of the triangle to the orthocenter (where the three altitudes meet; these …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 11, Issue 1, 2020 · pp. 5–15 Read article
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Review on UV – Visible Spectroscopy and HPLC
Abstract: Like Fourier-transform infrared spectroscopy, UV-visible spectroscopy is used to determine the purity of pharmaceutical compounds. Many substances have chromospheres, which absorb certain wavelengths of ultraviolet or visible light. Using the Beer–Lambert equation, the absorption of spectra obtained from these samples at given wavelengths can be directly related to the sample concentration. Normally, UV and UV-visible spectra are recorded at high and low pH, and the results of both are compared …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 13, Issue 1, 2022 · pp. 43–54 Read article
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Big Data and Libraries
Abstract: AbstractVery large amounts of data are being generated due to digital technologies and online activities. Traditional database solutions, which were used as intelligent tools to handle small data, are ineffective in handling the present day big data which has the characteristics of high volume, velocity and variety. Big data analytic tools are employed to get useful insights out of big data. There are some open source big data analytic tools …
Published in Journal of Advancements in Library Sciences · Vol. 1, Issue 2, 2014 · pp. 56–62 Read article