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32 articles for “Boundary layers flow”
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Forced Convection Heat Transfer Through Porous Media: A Review
Abstract: This paper reviews studies on forced convection heat transfer through Porous media. In the last four decades we have seen enormous amount of research work related to the study of heat transfer in porous media. Convective flows in porous media are of vital importance to these processes, thereby generating the need for their full understanding. This review paper includes the effects of pore to throat size ratio, Non-Darcy and dispersion …
Published in Trends in Mechanical Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 22–27 Read article
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Control of Separation Induced on the Wing of Transonic Speed Aircraft by Means of Micro Vortex Generator
Abstract: Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 This experimental study provides an assessment of the potential of applying a control device to mitigate undesired separation formed on the wing of an aircraft causing instability of the airliner. They are used in a wide range of aircrafts and yet needs to be improved for wider applications.The study was conducted in a transonic wind tunnel. The concept of passive control, …
Published in Journal of Aerospace Engineering & Technology · Vol. 1, Issue 2, 2011 · pp. 1–18 Read article
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Similarity Solution of Two-dimensional Fluid Flow over a Flat Plate Using Shooting Technique
Abstract: The steady incompressible laminar viscous flow over a flat plate is solved using similarity variable transformed equation. The two-dimensional momentum and forced convection energy equations are reduced to boundary layer equation. These equations are transformed into similarity variable form. The surface of the wall is maintained at constant temperature. Shooting technique is used to solve these equations using Runge-Kutta method, Predictor-Corrector method, Modified Euler method, Adam-Bashforth method and Milne’s method. …
Published in Journal of Experimental & Applied Mechanics · Vol. 10, Issue 2, 2019 · pp. 23–30 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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Aerodynamic Flow Separation Control Using Active Flow Devices
Abstract: Flow separation remains a significant challenge in aerodynamic applications, often leading to increased drag, loss of lift, and reduced efficiency in air and ground vehicles. This study investigates the use of active flow control (AFC) devices to mitigate flow separation and enhance aerodynamic performance. Active methods such as synthetic jets, plasma actuators, and pulsed blowing are examined for their ability to dynamically manipulate boundary layer behavior and delay or suppress …
Published in Journal of Aerospace Engineering & Technology · Vol. 15, Issue 3, 2025 · pp. 1–7 Read article
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Influence of Flow Control Devices on Aerodynamic Characteristics of Wind Turbine Blades: A Comprehensive Review
Abstract: The growth of the wind energy sector has increased the need for enhanced techniques with the goal of improving the efficiency and reliability of wind turbines. As the size of wind turbines increases, there is a noticeable increase in energy loss, problems with fluctuating loads, and structural damage. This suggests that effective techniques need to be implemented in order to improve their efficacy. Methods for flow control, including passive and …
Published in Recent Trends in Fluid Mechanics · Vol. 13, Issue 2, 2026 · pp. 52–88 Read article
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Group Technique for Boundary Layer Equations of Time-Dependent Power-Law Fluids Over Non-Isothermal Surface
Abstract: The multi-parameter group technique is developed to derive invariant solution for the system of non-linear partial differential equations governing unsteady, two-dimensional boundary layer flows over a heated surface of power-law fluids. The basic non-liner system of partial differential equations with three independent variables is converted into system of non-linear ordinary differential equation, by single application using proposed multiparameter group method. The numerical solution for the system of nonlinear ordinary differential …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 2, 2019 · pp. 61–68 Read article
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Corrugated Tube Shell-and-Tube Heat Exchanger Using Epoxy-Based Polymer Composite Coatings for Lightweight and Efficient Thermal Systems
Abstract: Corrugated tube geometries are widely recognized for their ability to enhance heat transfer through boundary layer disruption and secondary flow generation. In this study, a combined experimental and computational investigation is carried out to evaluate the thermo-hydraulic performance of a shell-and-tube heat exchanger incorporating corrugated stainless steel tubes integrated with an epoxy-based polymer composite coating and housed within a mild steel shell. Unlike conventional metallic systems, the present work introduces …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 603–617 Read article
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Electro-viscous effect on rotating disk flow with variable physical properties
Abstract: In this study, investigate are made for an unsteady flow across a rotating disk with various physical parameters. Consider the movement of a viscous fluid across a three-dimensional disk. The major goal of the current mathematical form is to look at the behavior of an ionic convey electrically viscous flow of boundary layer on a spinning disk with different physical characteristics. To mimic ionic species conservation, the Poisson equation and …
Published in Recent Trends in Fluid Mechanics · Vol. 9, Issue 3, 2022 · pp. 1–11 Read article
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Numerical Analysis of Oblique Impinge shock-wave/turbulent boundary-layer interaction Using Reynolds Average Navier Stroke Equations
Abstract: Interaction of shock waves with turbulent boundary layer plays an important role in the design and operability of high-speed aerospace vehicles and air-breathing engines. During interaction, the adverse pressure gradient of the shock is often strong enough to separate the boundary layer. Reynolds averaged Navier-Stokes simulations using conventional turbulence models do not predict the correct size and shape of the separation bubble in strong shock/turbulent boundary-layer interactions. The corresponding surface …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 8, Issue 3, 2019 · pp. 31–48 Read article
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Hybrid Numerical–Artificial Neural Network Study of Chemically Reactive MHD Nanofluid Flow Incorporating Thompson–Troian Slip and Stefan Blowing
Abstract: Boundary layer behaviour in chemically reactive nanoliquid is significantly affected by surface conditions, magnetic fields, heat and mas transfer mechanisms. However, the combined impact of Stefan blowing and nonlinear Thompson–Troian slip under inclined magnetic fields remains mostly unexplored, particularly in mixed convection flows. In this research work, the flow of a chemically reactive nanoliquid over a permeable surface is investigated by considering the Troian slip, inclined magnetic fields, Stefan blowing, …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 409–425 Read article
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Atmospheric Boundary Layer Processes: Impacts on Weather Patterns and Climate Change
Abstract: The atmospheric boundary layer (ABL) is a vital component of the Earth's climate system, acting as the interface between the terrestrial surface and the overlying atmosphere. This layer, typically extending from the surface to a height of a few hundred meters, is characterized by strong gradients in meteorological variables such as temperature, humidity, wind speed, and atmospheric pressure. Understanding the dynamics of the ABL is essential for comprehending weather phenomena, …
Published in International Journal of Atmosphere · Vol. 1, Issue 2, 2024 · pp. 22–25 Read article
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Aerodynamic Analysis of Foliage Stimulated Airfoil Design for Enhanced Strength with Carbon Fibre-reinforced Polymer
Abstract: Ever since the beginning of aviation, there has been an unwavering desire to improve airfoil design in order to improve aircraft performance. This insatiable desire for improvement has driven innumerable aerodynamicists to create a diverse range of revolutionary airfoils. This research investigates a revolutionary method to airfoil design, inspired by the complicated structures and aerodynamic qualities of natural leaves. Using biomimicry, the project seeks to increase the performance and efficiency …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 560–616 Read article
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Optimization of Roof angle for Sloping Roof Buildings under Extreme Wind Conditions
Abstract: A downburst that occurs during a thunderstorm is a strong downward current of wind which comes down with high speed from the cloud level and hits the ground. After hitting the ground it spreads radially outward in all directions. These are generally destructive in nature. There are evidences of downburst causing extensive damages to buildings, electrical installations etc. In India thunderstorms often occur during pre-monsoon and post-monsoon seasons particularly in …
Published in Journal of Construction Engineering, Technology & Management · Vol. 9, Issue 1, 2019 · pp. 1–5 Read article
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Finite Difference Analysis of Plane Couette Flow using MATLAB
Abstract: Internal flow is a flow for which the fluid is confined by a surface. Hence, the boundary layer is unable to develop without eventually being constrained. An internal flow is constrained by the bounding walls, and the viscous effects will grow and meet and permeate the entire flow. Some examples of internal flows are: flow between two parallel horizontal plates, Couette flow, plane Poiseuille flow, flow through pipes, etc. In …
Published in Journal of Experimental & Applied Mechanics · Vol. 10, Issue 1, 2019 · pp. 17–22 Read article
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Finite Difference Analysis of Plane Couette Flow using MATLAB
Abstract: AbstractInternal flow is a flow for which the fluid is confined by a surface. Hence, the boundary layer is unable to develop without eventually being constrained. An internal flow is constrained by the bounding walls, and the viscous effects will grow and meet and permeate the entire flow. Some examples of internal flows are flow between two parallel horizontal plates, Couette flow, plane poiseuille flow, flow through pipes, etc. In …
Published in Journal of Microcontroller Engineering and Applications · Vol. 5, Issue 3, 2018 · pp. 7–11 Read article
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Injection of Air Bubbles and its Effects into A Shell and Coiled Heat Exchanger: A Review
Abstract: The purpose of this research is to investigate the effects of air bubble injection on the performance of a horizontal helical shell and coiled tube heat exchanger in an experimental setting. The effects of air bubble injection with varied air flow rates on the number of thermal units (NTU), exergy loss, and efficacy are examined. In present review, a shell and snaked tube heat exchanger has been numerically considered. The …
Published in Journal of Experimental & Applied Mechanics · Vol. 12, Issue 3, 2021 · pp. 40–47 Read article
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Numerical Investigations of Fluid Flow and Heat Transfer in a Ribbed Heated Duct with Variable Aspect Ratios
Abstract: The present investigation has been carried out to investigate the steady-state forced convection heat transfer and pressure drop characteristics of turbulent flow in an air cooled horizontal duct. The aspect ratio (W/H, where W is width and H is the height of the duct) is varied in the range of 1 to 4. Square ribs are fixed on the inner side of the bottom wall which is heated with constant …
Published in Recent Trends in Fluid Mechanics · Vol. 3, Issue 1, 2016 · pp. 27–37 Read article
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Comparative Study of Turbulence Models for the Simulation of Three-Dimensional Transonic Flow around Airfoils
Abstract: The analysis of three dimensional transonic flows was carried out on the well-known ONERA M6 airfoil. In this paper three turbulence models i.e. Spalart-Allmaras, k-ω shear stress transport (SST) and k-ε Realizable were compared for transonic flows and validated through comparison with the experimental measurements and CFD results obtained from NASA ONERA M6 study for the selected wing. The discretization of the computational domain was done using an unstructured mesh, …
Published in Journal of Aerospace Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 47–59 Read article
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Thermo-Hydraulic Performance of a Double-Pipe Double-Pass Heat Exchanger using Annular Fins and Graphite-filled Epoxy Composite Tubes
Abstract: Double-pipe heat exchangers remain one of the most widely adopted thermal devices because of their simple construction, operational reliability, and ease of maintenance. Nevertheless, their performance is often constrained by the limited heat transfer area of smooth tubes and the long-term challenges associated with metallic materials, including corrosion, scaling, and structural weight. Recent advances in thermally conductive polymer composites provide an opportunity to overcome these limitations by replacing conventional metals …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article