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385 articles for “Velocities”
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Entropy Analysis of Unsteady MHD Bioconvective Nanofluid between Parallel Disks under Squeezing Motion and Multiple Slip Conditions.
Abstract: This research offers valuable insights for improving heat transfer and minimizing entropy generation in engineering systems that involve nanofluids and microorganisms. It investigates the unsteady squeezing bioconvection flow of a nanofluid between two parallel disks, with a focus on entropy generation, flow dynamics, heat transfer, and the concentration of both nanoparticles and microorganisms. The lower disk is stretched horizontally and subjected to suction, while the upper disk moves vertically, creating …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 28, Issue 1, 2025 · pp. 17–40 Read article
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Optimizing Parameters for Dry Sliding Wear Control in Stir-Cast AA7050/SiC Composites
Abstract: Using a pin-on-disc tribometer, this study examined the dry sliding wear behavior of AA7050/SiC composites. The production of this metal matrix composite was achieved through the stir-casting process, which involved an initial step of melting the AA7050 alloy, followed by the careful introduction of silicon carbide (SiC) particles, stirring to achieve uniform dispersion, and finally, casting the molten mixture. Wear rate (WR) was determined by three operational parameters: SiC reinforcement …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1624–1635 Read article
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A Numerical Analysis of Solar Chimney Power Plant and Study of Parameters Effecting it
Abstract: AbstractA comprehensive theoretical solar chimney power plant (SCPP) model has been introduced to overcome the energy crisis. Numerical simulation performed on the 2-dimensional models of the SCPP. Different numerical models are taken into account by changing the geometrical parameters of the chimney inlet, absorber temperature, and chimney inclination angle and chimney outlet geometry. Air velocity, heat transfer coefficient, pressure, and turbulent kinetic energy are the some parameters taken into account …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 2, 2018 · pp. 22–42 Read article
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Wall to Bed Mass Transfer in the Presence of Double Cone Promoter in a Three Phase Fluidized Bed with Conical Entry of Electrolyte
Abstract: AbstractInvestigations have been carried out experimentally to study the effect on wall-to-bed mass transfer coefficient in presence of double cone promoter in a three-phase fluidized bed with a conical entry of electrolyte. The system chosen was an electrolyte as liquid phase, glass spheres of different diameters as solid phase and inert nitrogen as gas phase. The electrolyte was an equimolar solution of potassium ferricyanide and potassium ferrocyanide each of 0.01 …
Published in Journal of Petroleum Engineering & Technology · Vol. 7, Issue 2, 2017 · pp. 39–43 Read article
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Efficiency Measurement of Solar PV Panels
Abstract: With increasing awareness and technology developments, we strive to achieve a greener approach to energy production. Solar panels that use PV cells are popular for converting solar power into electricity. One of the problems in using PV cells to extract energy from sunlight is the temperature effect on PV cells. As the solar panel is heated, the conversion efficiency of light to electrical energy is diminished. Because solar panels can …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 3, Issue 3, 2016 · pp. 13–30 Read article
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Turbulence Characteristics of Flow over Smooth and Rough Beds
Abstract: Experimental study on turbulence measurements in an open channel with smooth and rough beds using acoustic doppler velocimeter (ADV) has been carried out in the present study. Measured velocity distribution along the depth on smooth and rough beds for different discharges and bed slopes is in good agreement with logarithmic law. The turbulence intensities were more near the bed and less near the water surface. Existing equations for turbulence intensities …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 160–166 Read article
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Research on Turbine Volute design using CFX
Abstract: Volute is centrifugal part or basically it is a casing of turbine, centrifugal pump and turbo chargers. It is the most important component of turbine which converts velocity into pressure by the help of blades. It has a funnel type shape, with increasing diameter with curved shape. It receives fluid from the impeller and maintaining its velocity to the diffuser. While converting the fluids velocity into kinetic energy there are …
Published in Recent Trends in Fluid Mechanics · Vol. 6, Issue 2, 2019 · pp. 47–59 Read article
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Feasibility of Using Nondestructive Testing (NDT) in Roller Compacted Concrete Quality Assessment
Abstract: Roller compacted concrete is a no slump, heavy duty concrete usually used in pavement constructed of roadway, parking lots, in areas of frozen environment or aired region where there is shortage of water for curing, and when other paving alternatives do not satisfy the pavement design requirements regarding heavy loading, and nonstandard wheel configuration. The traditional testing e slab samples have been prepared in the laboratory using two types of …
Published in Trends in Transport Engineering and Applications · Vol. 2, Issue 3, 2015 · pp. 30–39 Read article
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An Approach towards Seamless Handover with Maximum Resource Utilization in Mobile Wireless Networks
Abstract: ABSTRACT In mobile wireless networks, a seamless handover between different communication systems has been a challenging issue. A link going down (LGD) event based on L2 layer information has been incorporated by the IEEE 802.21, media independent handover (MIH) framework. Link going down trigger allows accomplishing handover efficiently with the prior intimation of handover and enables L3 entities streamline their handover (HO) related activities. As velocity of user has a …
Published in Journal of Communication Engineering & Systems · Vol. 2, Issue 3, 2012 · pp. 1–10 Read article
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Effect of Distributor Angle Variation on Flow Characteristics in a Hollow Frustum: A Numerical Study
Abstract: The key factor in determining the flow characteristics of a fluidized bed is the outlet vane angle of the distributor. It helps to predict the flow type, bed thickness and hence helps to obtain the required characteristics by selecting an appropriate angle. This study provides a detailed report about the analysis of important flow characteristics such as velocity, pressure, curl velocity, velocity swirl normal and turbulence with respect to different …
Published in Recent Trends in Fluid Mechanics · Vol. 2, Issue 3, 2015 · pp. 10–15 Read article
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Numerical Study of Lid Driven Cavity at Different Reynolds Number
Abstract: The present work focuses on flow inside a lid-driven cavity; main aim is to obtain the velocity field in steady state condition using Navier-Stoke equations. Navier-stoke equation has been converted into algebraic form using finite difference method (FDM). Pertinent parameter of the present study is Reynolds number. Stream-vorticity approach has been adopted to solve the physical problem. Different Reynold numbers and grid sizes have been studied. Peaks of the velocity …
Published in Trends in Mechanical Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 42–46 Read article
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Finite Element Analysis of Vertical and Inclined Flanged Diffusers for Micro Wind Turbine
Abstract: Normal 0 false false false EN-US X-NONE X-NONE Micro-wind turbines have huge potential to generate power and to add support to meet growing energy demand across the globe. Wind power produced changes with third power of wind velocity. Even a small increase in wind velocity improves power performance of wind turbine significantly. A diffuser plays a significant role to increase wind velocity at rotor diameter. Diffuser-augmented micro-wind turbines can effectively …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 5, Issue 2, 2014 · pp. 37–42 Read article
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Design and Analysis of MEMS based Piezoelectric Accelerometer Having Square Shaped Proof Mass
Abstract: In any spacecraft launching program, the most prominent issue is to locate the spacecraft or satellite, in particular orbit of any particular planet. Now, while making the position of that spacecraft in space, abrupt changes in velocity occur and these velocity changes can break the controlling circuitry of the system since the velocity changes occur at very high environmental pressure. The designed device converts the deflections due to mentioned pressure …
Published in Journal of Aerospace Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 72–78 Read article
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Analytical Solution to Single Degree of Freedom Bi-Linear Spring Mass Systems Transient Vibration
Abstract: Conventional approach to solution of linear systems under transient vibration has been through Convolution integral or Duhamel integral method which employs the method of superposition of linear solutions to obtain the total solution. Principle of superposition is not possible for non-linear systems and hence transient vibration solution cannot be obtained through classical methods. Nevertheless, the solution to transient vibration for each domain can be obtained as a sum of homogeneous …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 7–18 Read article
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Ultrasonic Study of Molecular Interactions in Organic Liquids at Various Temperatures and Concentrations
Abstract: The ultrasonic velocity was measured for water and glacial acetic acid in their pure state and in their binary mixtures. The ultrasonic velocity was measured also for the solution of salicylic acid in glacial acetic acid. Relative density and relative viscosity were also measured at various temperatures and concentrations. The parameters like adiabatic compressibility, acoustic impedance, relaxation time and attenuation were determined. This study is helpful for the understanding of …
Published in Research & Reviews : Journal of Physics · Vol. 1, Issue 3, 2012 · pp. 16–22 Read article
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Acoustic or Sonic Log Analysis Identifying the Subsurface Geophysical Changes in Hydrocarbon Bearing Zones in Oil and Gas Potential Sedimentary Basins
Abstract: The introduction of acoustic/sonic logs to oil and gas industry is barely decades old. But, even within such a short span of time it has become an integral part of most of the modern logging programmes. With the recent introduction of acoustic scope pictures, this may even hold a promise of making the old dream of seeing the hydrocarbon in situ come true. In this paper, an attempt has been …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 22–35 Read article
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Study on a Supercritical Airfoil with Variation in Thickness for Improved Aerodynamic Characteristics in Transonic Regime
Abstract: In this research the steady state analysis of a supercritical airfoil is done to understand the flow physics at transonic Mach number regime for various thickness. The modeling of NASA SC (2) 0714 supercritical airfoil with various thickness values is done. The steady state analysis is carried out for different test cases in combination with different thickness, angle of attack and Mach number at 10 km altitude using density-based Reynolds …
Published in Journal of Polymer & Composites · Vol. 11, Issue 13, 2023 · pp. 122–134 Read article
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Parametric optimization of COF of fabricated AA6082/Si3N4/C/Al2O3 composite
Abstract: In the present experimental investigation AA6082/Si3N4/C/Al2O3 composite was successfully fabri-cated using stir casting technique combined with electromagnetic stirrer for wear resistance applica-tions. The produced AA6082/Si3N4/C/Al2O3 composite exhibits improved tribological and me-chanical and properties, according to the experimental results. The generated composite has a micro-hardness range of 60 to 110 HV and an average UTS of 150 to 200 MPa. The tribological perfor-mance was evaluated using a pin on disc tribometer. …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 144–152 Read article
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Optimizing Heat Transfer Performance in CO2 Finned-Tube Gas Coolers: A Comparative CFD Study of Design Variations
Abstract: Computational fluid dynamics (CFD) simulations and mathematical analysis are used in this study to examine the heat transfer efficiency of CO2 fined tube gas coolers. To maximize heat transfer efficiency, CFD simulations were carried out on a variety of gas cooler designs with variable fin geometry, including offset strip fins, using the ANSYS Fluent program. Under the baseline design, there was a finned tube cooler measuring 610 mm in length, …
Published in Recent Trends in Fluid Mechanics · Vol. 11, Issue 3, 2024 · pp. 1–13 Read article
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Thermal Spray Coating an alternative coating solution in place of The Traditional Hot Dipped Galvanizing Process in Present Industrial Scenario
Abstract: In present scenario the Thermal Spray Coating is prestigious alternative solution to replace traditional Hot Dipped Galvanizing Coating as an alternative solution for new and existing structures in industries and offering a range of benefits for long durability and maintenance free solution for more than 25 years in service. There is no weld life for site application in case of Hot Dip Galvanized Structure and may customers have issue with …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 11, Issue 3, 2024 · pp. 08–15 Read article