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275 articles for “Working Fluids”
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Characterization of Nanofluids Using Experimental and Analytical Methods for Different Concentrations
Abstract: A fluid containing nanometer-sized nanoparticles is called nanofluid. These fluids are engineered colloidal suspensions of nanoparticles in a base fluid. Nanofluids are a new class of fluids engineered by dispersing nanometer-sized materials (nanoparticles, nanofibers, nanotubes, nanorods, nanosheet, or droplets) in base fluids. They are two-phase systems with one phase (solid phase) in another (liquid phase). For a two-phase system, there are some important issues we have to face. One of …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 19, Issue 3, 2017 · pp. 23–31 Read article
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Short Report to Describe the Surface-driven Microfluidic Flow in Fluid Mechanics
Abstract: In this short report, a brief review on surface-driven microfluidic flow is provided. Also, the maskless lithography and indirect bonding technique are used to fabricate a single SU-8 based glass microfluidic device. Dyed ethylene glycol is prepared as working liquid to test the fabricated device. The surface-driven microfluidic flow of dyed ethylene glycol is recorded by a CMOS camera catching 25 frames per second with a corresponding time-scale resolution of …
Published in Recent Trends in Fluid Mechanics · Vol. 9, Issue 4, 2022 · pp. 1–5 Read article
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Surface-Driven Microfluidic Flow in Fluid Mechanics
Abstract: In this short report, a brief review on surface-driven microfluidic flow is provided. Also, the maskless lithography and indirect bonding technique are used to fabricate a single SU-8 based glass microfluidic device. Dyed ethylene glycol is prepared as working liquid to test the fabricated device. The surface-driven microfluidic flow of dyed ethylene glycol is recorded by a CMOS camera catching 25 frames per second with a corresponding time-scale resolution of …
Published in Recent Trends in Fluid Mechanics · Vol. 8, Issue 3, 2021 · pp. 1–5 Read article
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Numerical Simulations of Heat transfer in Microchannels for Cooling in Microsystems
Abstract: Fluid flow at microscale is being studied extensively in recent years. Understanding the heat transfer characteristics and fluid flow at these scales has relevance to electronics cooling, microheat exchangers, microelectro mechanical systems (MEMS) devices amongst others. In this investigation, three-dimensional models of microchannels with different geometrical cross-sections have been numerically simulated using the CFD software tool FLUENT. The numerical data obtained from this work provides better understanding and insight into …
Published in Recent Trends in Fluid Mechanics · Vol. 2, Issue 1, 2015 · pp. 15–20 Read article
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Fabrication and Characterization of Zinc-based Alloy for Bio-implants
Abstract: Zinc-based alloys are potential biodegradable implants and can replace Magnesium and Titaniumbased materials via engineering their biomechanical properties with Zinc. Implants, due to their intricate geometries are difficult to fabricate by conventional manufacturing techniques. Therefore, they are usually fabricated by Additive manufacturing and Powder metallurgy techniques. In the present work, Zinc, Magnesium, manganese and titanium are alloyed using powder metallurgy technique. Vickers micro-hardness, UTM, Zeiss microscopy and Corrosion testing using …
Published in Journal of Polymer & Composites · Vol. 11, Issue 7, 2023 · pp. 1–13 Read article
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Prospects of Shale gas in India verses Global Scenario and Future of Plasma Pulse Technology
Abstract: Conventional sources are expensive, polluting and limited by its reserves so, it will not be able to meet the demand of a country which is increasing continuously. This concern triggered the scramble to secure long term oil supplies and shown their reliance on the unconventional resources. Shale gas is natural gas trapped in the shale formation with organic rich content of methane. Huge reserves have been found in United States, …
Published in Journal of Petroleum Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 35–43 Read article
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Comparison of Physicochemical Concentration on Temperature Effect of Crude Oil Contaminated Water Environment
Abstract: The bio-adsorbents used are plantain stem fiber, banana stem fiber and palm fruit fiber and the investigation was aimed to examiner the effect of temperature on the performance of the bio-adsorbents in a packed bed unit for the mitigation (reduction or removal) of total petroleum hydrocarbon (TPH) from the fresh water medium using agro based fibre, which was prepared by subjecting the agro materials into sun and room dried before …
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 3, 2023 · pp. 1–17 Read article
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Breathing prediction of fracture deviated wellbore through flooding mechanism
Abstract: Wellbore breathing is a common occurrence during drilling operations, but the down hole mechanism and how it manifests itself in surface and subsurface processes, is not well understood. It often result in a drilling fluid gain at surface and are misidentified as a kick, resulting in unneeded shut in periods and associated non-productive time (NPT). Further, misidentification of wellbore breathing as underbalance often results in increases in mud weight, which …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 2, 2019 · pp. 5–13 Read article
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Hydrodynamic Stability of Parallel Flow and Rotating Flow of Inviscid Fluid Dynamics
Abstract: AbstractStream unsteadiness and fierce change can be all around clarified utilizing another proposedhypothesis - Energy slope hypothesis (Dou, 2005). In this hypothesis, the strength of a streamrelies upon the general size of vitality slope in streamwise heading and that transverse way, ifthere is no work input. In this note, it is indicated dependent on the vitality slope hypothesisthat inviscid non-uniform stream is flimsy if the vitality transverse way isn't consistent. …
Published in Journal of Aerospace Engineering & Technology · Vol. 10, Issue 2, 2020 · pp. 1–14 Read article
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A Study of Diabetic Retinopathy using Convolutional Neural Networks
Abstract: This paper focuses on study of rapid detection of retinopathy, since prompt therapy can help decrease as well as possibly eliminate loss of eyesight. Furthermore, automatically locating portions of the optic picture which may include lesions could aid professionals in their identification function. Retinopathy is a frequent diabetic condition that comprises changes in the retinal blood capillaries. Such changes may lead capillaries to rupture as well as release fluid, causing …
Published in Journal of Instrumentation Technology & Innovations · Vol. 12, Issue 2, 2022 · pp. 1–6 Read article
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Development of Nanoparticles as Additive to Drilling Mud to be Used as Viscosity and Filtrate Loss Modifier
Abstract: Conventional drilling fluids are often unable to fulfill certain functional tasks that are very important in challenging environment. This inefficiency of drilling fluid in performing certain task is mainly because of lack in particular rheological or filtrate loss properties. Hence, the industry is looking for a new kind of additives which can be helpful in maintaining these properties in desired range even under extreme conditions. Rice husk is an abundantly …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 1, 2016 · pp. 22–30 Read article
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Semiconductor Physics and Micron Scale Fluid Mechanics towards the Microelectromechanical Systems Associated with Nanotechnology
Abstract: Interrelations among semiconductor physics, microfluidics, nanofluidics and nanotechnology are briefly described. A single microchannel bend is designed and fabricated by author using the maskless lithography, hot embossing lithography and direct bonding. Dyed water is the selected and prepared working liquid in this work. Surface-driven (passive) capillary flow of working liquid is recorded in the fabricated microchannel bend using a CMOS camera. This work may be useful in applied chemistry.
Published in Research & Reviews : Journal of Physics · Vol. 9, Issue 4, 2020 Read article
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Optimization of Process Parameter in Electrical Discharge Machining
Abstract: This is the non-traditional machining process. The high surface finish of the material is required. More complex shape of material is required. Wire EDM is one of the nontraditional machining processes. Surface roughness and kerf width are of crucial in the field of machining processes. This paper uses the Grey relational theory and Taguchi optimization technique, in order to optimize the cutting parameters in Wire EDM for D3 steel material …
Published in Journal of Experimental & Applied Mechanics · Vol. 11, Issue 2, 2020 · pp. 4–10 Read article
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A Study of Flow Analysis Within a Tractor Cabin with the Goal of Determining the Best Vent Location and Glazing
Abstract: This study aims to improve the thermal comfort inside a tractor cabin by determining the position of the air conditioner vent location. This is obtained by maintaining the cold air flow inside the cabin by means of the air conditioning vents and proper HVAC systems. The concept of glazing on windows with different materials was also used to improve the thermal comfort of the tractor cabin by reducing the thermal …
Published in Journal of Mechatronics and Automation · Vol. 8, Issue 2, 2021 · pp. 29–42 Read article
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Polymer Chemistry in Flexible Dental Assemblies: Designing a Polymer-Based Composite Arm for Bio-Fluid Extraction Tube Support
Abstract: Polymer chemistry offers innovative solutions for designing flexible, durable assemblies in medical applications. This study explores an assembly for holding a bio-fluid extraction tube, featuring a flexible arm interpreted as a polymer composite, aimed at enhancing dental procedures. The assembly comprises a gooseneck-style arm—hypothesized as a rubber or fiber-reinforced polymer—connecting a first clamp (for anchoring to an object, e.g., dental chair) and a second clamp (securing the extraction tube). The …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 285–292 Read article
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A Report on Numerical Investigation of Wings: with and without Telescopic Wing
Abstract: The telescopic wing has generated lots of interest in telescopic wing weight, geometry, complexity, structure, retractable/extendable mechanisms and aerodynamic performance etc. The problem is to develop telescopic wing for Piper PA-28 Cherokee is a one of the light aircraft built by Piper aircraft and designed for flight training, air taxi, and personal use. The key design parameters for the telescopic wing aircraft as mentioned are lift force generated (lift coefficient) …
Published in Journal of Aerospace Engineering & Technology · Vol. 6, Issue 3, 2016 · pp. 16–23 Read article
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Study and Thermal Analysis of a Rectangular Duct with Z-shaped Baffle Using Ansys
Abstract: This project aims to enhance heat transfer in a rectangular duct by utilizing Z-shaped baffles. It involves creating a 3D CAD model using SolidWorks and validating it in ANSYS Fluent 2019 R2. The study focuses on analyzing the effect of baffle arrangement, height, and angle on heat transfer rate. Comparative analysis is conducted between rectangular ducts with a 60° angle and heights of 4 mm, 6 mm, and 8 mm. …
Published in International Journal of Energy and Thermal Applications · Vol. 1, Issue 2, 2023 · pp. 14–30 Read article
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Short Review on the Integration between Nanofluidics and Nanoelectromechanical Systems with an Experimental Demonstration on Microfluidics
Abstract: In this short review, a brief idea is provided about the integration between nanofluidics and Nanoelectromechanical systems. Establishments of nanofluidic features are necessary to fabricate the fluidic microelectromechanical systems (MEMS) and fluidic Nanoelectromechanical systems (NEMS). Also, an experimental demonstration is provided on microfluidic flow phenomenon after fabrication of polymethylmethacrylate (PMMA) based microchannel bend. Dyed ethylene glycol is prepared as working liquid. Effect of centrifugal force on surface-driven microfluidic flow of …
Published in Research & Reviews : Journal of Physics · Vol. 9, Issue 3, 2020 · pp. 25–28 Read article
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Maximizing Flow and Ensuring Leak Tightness Through Design and Development of a Unidirectional Check Valve
Abstract: The check valve market, valued at USD 6.5 billion in 2024, is expected to grow at a 4.1% CAGR. Challenges in valve seat materials, particularly SS304 and PTFE (Teflon), contribute to a 0.5% leak rate, which leads to helium gas loss, reduced efficiency, and higher operational costs. While various sealing techniques, including hard-on-soft methods, have been explored, few have been applied to poppet check valves. This study focuses on improving …
Published in International Journal of Industrial and Product Design Engineering · Vol. 2, Issue 2, 2024 · pp. 10–18 Read article
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Stabilizing Hydrodynamic Bearing Using H∞ Loop Shaping Design Procedure
Abstract: This paper proposes the idea of H∞ loop shaping to design an active stabilizing controller for short journal bearing. Hydrodynamic bearings have viscous friction and stiffness force associated with fluid film layer sheared during the motion of bearing; at high speed, they can land up too wide and considerable heat is generated. As a result instability occurs, thus working inefficiently that can be the cause of material damage and also …
Published in Journal of Instrumentation Technology & Innovations · Vol. 6, Issue 3, 2016 · pp. 8–13 Read article