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272 articles for “Experimental measurements.”
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Investigating the Dynamics of Vortex Shedding in Bluff Body Flows
Abstract: In engineering applications, bluff body flows are commonplace. They are typified by the creation of vortices in the wake zone, a phenomena called vortex shedding. The current study uses a mix of computer simulations and experimental data to examine the dynamics of vortex shedding inbluff body flows. A range of bluff body designs were investigated, and the flow characteristics were analyzed using computational fluid dynamics (CFD) and high-resolution particle image …
Published in Journal of Experimental & Applied Mechanics · Vol. 14, Issue 3, 2023 · pp. 18–23 Read article
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Design and development of experimental setup for measurement of velocity by using Pitot tube
Abstract: Proposed work focuses on design & development of experimental setup for measurement of velocity of fluid by using pitot tube and calibrate using measuring tank setup. This experiment helped us to understand how the Bernoulli’s equation is applied practically. Here we are using digital manometer to measure pressure difference which can shows more accurate readings. We have used the inlet valve to regulate flow rate of water which is coming …
Published in Journal of Experimental & Applied Mechanics · Vol. 12, Issue 2, 2021 · pp. 15–21 Read article
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Experimental Setup for the Measurement of Low Temperature Seebeck Coefficient of Single Crystal and Bulk Materials
Abstract: A differential thermopower setup is fabricated for both the single crystal and bulk materials in the temperature range of 16–320 K. One advantage of this apparatus is that the sample separation can be changed according to the requirement between 2 and 5 mm. In this setup silver paint is used for the improvement of thermal and electrical conductivity between copper (thermocouple) leads and material. Seebeck coefficients are measured using a …
Published in Journal of Control & Instrumentation · Vol. 5, Issue 2, 2014 · pp. 25–30 Read article
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Comparison of Finite Element Analysis with An Experimental Validation on Transmission Loss Measurement for Acoustic Muffler
Abstract: Noise from an automotive application is the major source of noise pollution. Here the noise from muffler plays a vital role. So noise reduction on muffler is generally predicted by Transmission Loss and Insertion Loss. Single expansion chamber is generally used as silencing elements in intake and exhaust systems. The main aim of this paper is to use of FEA as well Experimental Method for Muffler’s Transmission Loss Measurement. FEA …
Published in Journal of Automobile Engineering and Applications · Vol. 2, Issue 1, 2015 · pp. 38–43 Read article
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Experimentally New Technique System to Measure Contact Angle of Metal/Melt System in Simple Way
Abstract: In this research, easy and new technique system to measure contact angle of metals/metals systemwas introduced. The new technique system used a simple component in direct procedure to foundcontact angle of solder on metals substrate in wide range of drops volumes. Solder was applied intoaluminum and copper substrate metals using control heating temperature of the substrate. Then, theresults were analyzed by image J program to know the accuracy of the …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 8, Issue 1, 2021 · pp. 38–43 Read article
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Comparison of Ultra Wide Band Indoor Multipath IEEE 802.15.3 Channel Model
Abstract: ABSTRACT A very large bandwidth of frequency (3.1–10.6 GHz) has been allocated to UWB systems. A single-band UWB signal propagates differently in the lower and upper bands of the spectrum due to the size of its bandwidth. The lower part of the signal can be obstructed more easily and the man-made interferences are not homogeneously distributed over the whole spectrum. The first experimental results obtained for a UWB channel show …
Published in Journal of Communication Engineering & Systems · Vol. 2, Issue 3, 2012 · pp. 20–25 Read article
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Thermoacoustic Properties of 1-Propanol-n-Hexane and 1-Propanol-Cyclohexane Binary Mixtures: A Comparative Study at 298.15 K
Abstract: This study reports the measurement of ultrasonic velocity (U), viscosity (η), and density (ρ) for the binary liquid mixtures 1-propanol–n-hexane and 1-propanol–cyclohexane at 298.15 K over the full composition range (mole fraction 0.1–0.9). From the experimentally measured data, several important thermodynamic and acoustic parameters, including isentropic compressibility (βₐ), acoustic impedance, intermolecular free length, free volume (Vf), and internal pressure (πᵢ), were systematically derived to assess the magnitude and nature of …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 17, Issue 1, 2026 · pp. 19–31 Read article
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Integration of Vertical Axis Wind Turbines into Urban Environments: Feasibility and Design Considerations
Abstract: Abstract This study aims to comprehensively investigate the performance of Savonius rotor wind turbines through a combination of numerical simulations and experimental testing. Initially, 3-dimensional CAD software Solidworks and ANSYS will be utilized to design detailed models of the turbines. Numerical meshes will then be generated around these models using FLUENT software, incorporating the k-ε turbulence model to simulate fluid flow fields. Parameters such as drag coefficient, lift coefficient, pressure …
Published in Journal of Aerospace Engineering & Technology · Vol. 14, Issue 2, 2024 · pp. 20–25 Read article
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Explainable Machine Learning for Process Parameter Optimization in Gradient 3D-Printed Polymer Composites
Abstract: The explainable machine learning-based structure may be employed to achieve a favorable process parameter of the graduate 3D-printed polymer composite structures to improve the mechanical and thermal properties without compromising the transparency of the decisions made during the fabrication process. Gradient composite specimens were made by systematically varied process parameters like nozzle temperature, raster orientation, deposition speed, gradient transition rate and fused filament fabrication. A predictive model of tensile strength …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 847–866 Read article
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Enhancement of Horizontal Jet Impingement Heat Transfer Analysis on Vertical Flat Plate
Abstract: This research investigates the heat transfer characteristics and heat flux distribution associated with parallel jet impingement on a vertical flat plate. A comprehensive computational fluid dynamics (CFD) analysis is carried out and systematically validated against available experimental data to ensure the accuracy and reliability of the numerical model. The jet length is maintained constant at 12 mm, while the jet-to-plate separation distance is varied at 6, 12, 18, and 24 …
Published in Journal of Experimental & Applied Mechanics · Vol. 17, Issue 1, 2026 · pp. 65–80 Read article
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Machine Learning-Based Quantification of Polymer Structure Property Relationships for Predictive Material Design
Abstract: Polymer structures exhibit complex, hierarchical arrangements that strongly influence macroscopic properties, yet consistent quantification remains challenging due to nonlinear interactions and limited unified modeling strategies. Existing approaches inadequately capture generalized structure–property mappings across diverse polymer systems. This research aims to establish a machine learning-based quantification model for polymer structure–property relationships to support predictive material design. A Polymer Structure Property Dataset of 5,000 polymer samples includes structural descriptors and experimentally measured …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 737–754 Read article
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Analysis and Design of Frequency Reconfigurable Microstrip Patch Antenna using PIN Diode
Abstract: A reconfigurable antenna provides modify dynamically its frequency and radiation properties, which will provides the intentional redistribution of the RF currents over the antenna surface. Also this type of antennas provides the dynamical response. The difference between the smart antennas is its lies inside the antenna rather than in an external beamforming network. The proposed structure was simulated by using the High Frequency Structure Software (HFSS) version 15.0. The simulated …
Published in Journal of Mechatronics and Automation · Vol. 5, Issue 1, 2018 · pp. 17–23 Read article
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Studies on Modelling of Mechanical Properties of Polyester-based Semi-rigid Polyurethane Foams
Abstract: This paper describes the mechanical behaviour of castor oil based semi rigid polyurethane foams with relative density below 0.05moulded by varying isocyanate index (Isocyanate equivalent/hydroxyl equivalent) from 1:1 to 1:2. Mechanical properties of polyurethane foam mainly compressive strength is measured experimentally and the values were compared using three widely referred theoretical models namely: (i) the Empirical model (ii) Gibson and Ashby approach widely used for foam description and (iii) modified …
Published in Journal of Polymer & Composites · Vol. 8, Issue 1, 2020 · pp. 77–86 Read article
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Electromagnetic Transients and Frequency Characteristics of a Loaded Horizontal Conductor above Lossy Earth
Abstract: This paper addresses the electromagnetic transients and the frequency characteristics of a thin conductor horizontally suspended above lossy earth. The analysis takes into consideration the receiving-end termination and the earth parameters. The effect of the ground return is represented by incorporating the concept of the complex penetration depth in the formulation of the line’s equations in the s-domain. The resulting simultaneous differential equations governing the voltage and current are solved …
Published in Journal of Power Electronics and Power Systems · Vol. 8, Issue 1, 2018 · pp. 29–41 Read article
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Experimental Investigations of Prestressed Hollow Core Slabs and Grouted Hollow Core Slabs
Abstract: With the advent and rapid inclusion of prefabricated concrete system to the construction industry, it poses interesting research challenges to the academic world. The acceptance of hollow-core slab as an alternative to the normal reinforced concrete solid slabs is getting delayed due to the delusion among public. The usage of grouted hollow core slabs by filling the core with grout is one of the increasing demands observed by the hollow …
Published in Journal of Structural Engineering and Management · Vol. 3, Issue 3, 2016 · pp. 16–21 Read article
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Response Study of High Rise Building under Wind Load
Abstract: Wind is a phenomenon of great complexity because of the many flow situations arising from the interaction of wind with structures. Wind is of the most significant forces of nature that must be considered in design of buildings. The characteristics of wind-induced loads on buildings continuously vary in temporal and spatial dimensions. Adequate design of buildings depends on the success in predicting the actual effects of turbulent wind forces to …
Published in Recent Trends in Civil Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 35–45 Read article
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AI-Optimized Nano-Silica Reinforced PCM Composites for Predictive Solar-Thermal Energy Storage Networks
Abstract: This study presents an AI-optimized nano-silica reinforced polymer composite phase change material (PCM) for predictive solar-thermal energy storage networks. The proposed composite combines paraffin wax, high-density polyethylene (HDPE), and uniformly dispersed nano-silica particles to improve thermal conductivity, structural stability, leakage resistance, and long-term cycling performance. The composite was fabricated through melt blending and ultrasonication-assisted nanoparticle dispersion, followed by comprehensive morphological, chemical, thermal, and thermophysical characterization using scanning electron microscopy (SEM), …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
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Experimental Analysis and Validation of Cellulose Fibre Insulation Structures Considering Thermal Properties
Abstract: Cellulose fibre insulation structures made from used newspaper can be installed in attics, filling gaps between doors and windows. Many researchers focused on loose-filled cellulose fibre insulation. This study investigates the thermal conductivity, R- Value and thermal transmittance of cellulose fibre insulation manufactured from recycled cellulose materials with densities ranging from 280 to 360 kg / m³ and specimen thicknesses of 10 – 30 mm. A total of 25 structures …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
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Quad-Band Notched Small Monopole Antenna with U-shaped Slots and SRRs for UWB Applications
Abstract: A quad-band notched small monopole antenna with U-shaped slots and SRRs for UWB applications is presented in this study. The quadruple band-notched characteristics can be achieved by embedding three U-shaped slots on the radiation patch and two split ring resonators (SRRs) near feed line, respectively. It has a tiny size, only 17 mm23 mm0.508 mm. The experimental and measured results demonstrate that the proposed antenna offers an impedance bandwidth across …
Published in Journal of Communication Engineering & Systems · Vol. 15, Issue 1, 2025 · pp. 21–31 Read article
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A Novel CPW-Fed Triangular Fractal Antenna with Round Corners for UWB applications
Abstract: This paper presents a novel CPW(coplanar waveguide)-fed triangular fractal antenna with round corners for UWB(ultra wideband) applications. The overall size of the proposed antenna is 20×23×1.6 mm3. The impedance bandwidth of the antenna is effectively improved by adding fractal elements at the edges. Also, rounding corners of triangular fractal antenna leads to an improvement in impedance bandwidth. And the impedance bandwidth is enhanced by adding triangular strips on two ground …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 3, 2023 · pp. 1–7 Read article