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156 articles for “cavity”
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Investigation of Supersonic Flow Past a Cavity Using Basic Numerical Techniques
Abstract: This study, investigating various features of supersonic flow past a cavity, uses higher order essentially non-oscillatory Roe (ENO-Roe) method as the numerical method that solves full compressible Navier-Stokes equation in two dimensions. The turbulence effect is modelled considering 3% level of turbulence and by imposing the turbulent gust. It is seen that vortex shedding, which is a small scale phenomenon compared to other features of the flow, has been properly …
Published in Journal of Experimental & Applied Mechanics · Vol. 7, Issue 2, 2016 · pp. 30–40 Read article
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Effect of Mould Cavity Thickness on Cooling Rate of Aluminium with Temperature Dependent Properties
Abstract: Solidification study of aluminium with temperature dependent thermal properties has been conducted. Effect of the mould cavity wall thickness on the cooling rate has been the target in the present work. Casting is earliest metal shaping process and has been used in many industries and households. Solidification during casting is the most crucial event which has been studied by the many researchers because it affects the quality of the casting …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 3, Issue 1, 2016 · pp. 31–35 Read article
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A Review for Metastasis (Silent Killer) to Both Soft and Hard Tissue of Oral Cavity
Abstract: Metastasis is defined by the spread of a tumour to sites that are physically discontinuous with the primary tumour, and unequivocally marks a tumour as malignant. One of the illnesses that poses the greatest risk to human life is cancer. Patients with cancer may experience metastasis years or even decades, after the main tumour was diagnosed, making the metastatic process considerably more complicated and the disease more lethal. Cancer from …
Published in Research and Reviews: Journal of Oncology and Hematology · Vol. 12, Issue 1, 2023 · pp. 25–28 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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Numerical Study of Melting Process of Phase Change Material Filled in Rectangular Cavity with Partially Active Walls
Abstract: This paper presents numerical investigation of melting process inside rectangular cavity with partially active walls. Enthalpy porosity approach is used to simulate convection dominated melting inside rectangular cavity. Gallium is used as phase change material. Numerical model is validated with available experimental results. Numerical investigation is carried out to investigate the influence on melting behaviour of phase change material for relative positions of hot and cold walls. Results show that …
Published in Journal of Thermal Engineering and Applications · Vol. 4, Issue 2, 2017 · pp. 32–38 Read article
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Mould Cavity Thickness Effect on Aluminium Solidification for Temperature Dependent Properties
Abstract: Effects of the mould wall thickness on the solidification and heat transfer have been studied in the present paper. Aluminium in pure form and green sand has been adopted as a molten and mould cavity material respectively. Aluminium thermal properties are considered to be temperature dependent. Casting products have been used in many industries and household applications. Solidification and heat transfer during casting are crucial events which have been focused …
Published in Recent Trends in Fluid Mechanics · Vol. 3, Issue 1, 2016 · pp. 38–43 Read article
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Tunable optomechanical induced transparency and Fano-resonance in double cavity Optomechanical system with nonreciprocal coupling
Abstract: We explore theoretically optomechanical induced transparency and asymmetric Fano-Line shape profile of a double cavity optomechanical system with nonreciprocal coupling at weak and strong coupling regime. The model system consists of one mechanical mode and two optical modes. The optical mode is coupled via nonreciprocal transition. The mechanical model is coupled to the optical model via optomechanical interaction. We have analyzed induced transparency and Fano-Line shape profile and present a …
Published in Research & Reviews : Journal of Physics · Vol. 10, Issue 2, 2021 · pp. 5–15 Read article
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A Novel High Gain Cavity Backed Micro Strip-Fed Circular Triangular Corner Fractal Antenna for UWB Applications
Abstract: In the current article, a novel micro strip-fed circular triangular corner fractal unidirectional antenna with high gain is proposed for ultra wideband (UWB) applications. This antenna consists of circular patch with triangular slot with three iterations. A prototype of antenna has been designed on FR4 substrate having dielectric constant 4.4 and thickness 1.6 mm. This reference antenna is then placed in a cavity made up of FR4 having thickness same …
Published in Journal of Electronic Design Technology · Vol. 6, Issue 1, 2015 · pp. 19–24 Read article
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Effects of Cavity Length on the Performance Characteristics of InGaN based 420 nm MQW Blue Violet Laser
Abstract: AbstractThis research work has been carried out to improve the performance of a MQW blue violet laser to get an efficient and high power output. For this purpose the structure is designed using In0.156Ga0.844N/Al0.07Ga0.93. A high performance of the laser is obtained with the optimized values of injection current and differential gain. A maximum optical output power of 220.3 mW is obtained which enhances the designed laser for the application …
Published in Trends in Opto-electro & Optical Communication · Vol. 4, Issue 2, 2014 · pp. 20–26 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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Estimation of Absorption Performance of Underwater Anechoic Coating by Multilayer Arrangement of Cylindrical Cavity
Abstract: Rubber coatings with inner cavities are often used as underwater anechoic coatings. What is important in improving the underwater absorption performance is to improve the low frequency absorption performance, while satisfying the broadband absorption performance. Generally the homogenous medium can hardly satisfy the broadband absorption performance. In this paper sound absorption coatings with new arrangement of cavities to satisfy both broadband absorption performance and better low frequency absorption performance is …
Published in Research & Reviews : Journal of Physics · Vol. 12, Issue 3, 2023 Read article
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Effect of total-etch and self-etch adhesives on postoperative sensitivity in occlusal cavities restored with composite resin – An Invivo Study
Abstract: Aims and objectives: Comparison of POS with composite restorations in class I cavities placed using different adhesive systems.Methodology: This invivo study was conducted in Sri Siddhartha dental college, A total of 90 participants with class I cavities with a depth of 2-3 mm in posterior teeth were taken. The patients were selected based on consecutive sampling of 30 each. Group I- Prime and Bond NT - (Dentsply) – Total-Etch, Group …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 12, Issue 2, 2024 · pp. 1–8 Read article
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Numerical Simulation of Transient Free Convection in a Rectangular Cavity Filled with Porous Material Using Finite Element Formulations
Abstract: In this study, the finite element method is used to quantitatively explore transient free convection in porous cavities in order to understand the flow characteristics and heat conduction processes in the square cavities. In comparison to an uniform temperature gradient, the left wall is swiftly heated and the right wall is allowed to cool to a specific temperature. The horizontal walls are insulated on both sides. Dimensionless representations of the …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 1–10 Read article
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A Computational Study on Convection Heat Transfer in a Differentially Heated Cavity Using Nanofluids
Abstract: Heat transfer is an integral part of thermodynamics. It is used to study the heat and mass transfer in and out of the system during a process; the medium may vary from solids, liquids and gases. The three major divisions of heat transfer are conduction, convection and radiation. In this paper we have discussed the heat transfer through nanofluids particle and water. Water is a very common fluid used in …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 1, 2015 · pp. 14–18 Read article
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Mass Production Tools and Process Readiness for Uniform Parts—Injection Molding Application
Abstract: A mass production always aims to produce uniform performing products. Production tools such as pressing dies, casting dies and injection moulds, play a significant role by producing uniform parts for achieving final products. Tool complexity increases when multiple cavities are present. These tools pass through several stages of quality maturation, before starting production, where the tool capability for part uniformity can be assessed, corrected and aligned to mass production variables. …
Published in Journal of Polymer & Composites · Vol. 5, Issue 3, 2017 · pp. 30–40 Read article
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DentiDetect: Dental Diagnosis Powered by Deep Learning
Abstract: Dental X-rays play a crucial role in modern dentistry, enabling dentists to detect cavities, bone loss, and other hidden dental issues that are not easily visible during a routine examination. X-rays offer a clear picture of teeth, bones, and nearby tissues, enabling early identification of issues. This helps create more efficient treatment strategies and improves patient outcomes. Three commonly used types of X-rays include bitewing, periapical, and panoramic. Bitewing X-rays …
Published in Research and Reviews: A Journal of Dentistry · Vol. 15, Issue 3, 2024 · pp. 21–26 Read article
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Numerical Formulation of Solidification of Aluminum Casting in 2-D Green Sand Mould
Abstract: Unsteady numerical simulation of steady state and unsteady state conduction heat transfer has been done for solidification of pure Aluminium in green sand mould. As during the solidification heat transfer by conduction will dominate over convection and radiation. Heat conduction equation in two-dimensional Cartesian co-ordinate governs the problem. Convective boundary condition has been considered at the interface of the casting part and mould cavity. Heat conduction equation in unsteady state …
Published in Trends in Mechanical Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 38–41 Read article
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Grid based docking study of some 2-(4-methylsulfonyl phenyl) pyrimidine derivatives (designed after QSAR studies) with Cyclooxygenase
Abstract: Molecular docking helps in studying drug/ligand or receptor/ protein interactions by identifying the suitable active sites in protein, obtaining the best geometry of ligand-receptor complex and calculating the energy of interaction for different ligands to design more effective ligands. In Grid based docking, after unique conformers of the ligand are generated, the receptor cavity of interest is chosen and a grid is generated around the cavity. Cavity points are found …
Published in International Journal of Antibiotics · Vol. 1, Issue 1, 2024 · pp. 23–41 Read article
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Analyzing the Sheet Metal Extrusion Process Using Finite Element Analysis
Abstract: A wide range of sheet metal forming techniques has been developed to make it easier to produce intricate 3D objects. However, the knowledge still isn't sufficient. The sheet metal extrusion method was examined in this research as one of the common sheet-bulk metal manufacturing technologies. Consideration of the flow-stress curve's impact across a broad range of plastic strain and ductile damage played a pivotal role in constructing a realistic finite …
Published in International Journal of Fracture Mechanics and Damage Science · Vol. 1, Issue 1, 2023 · pp. 13–25 Read article
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Injection Parameters Setting in High-Pressure Die Casting
Abstract: The advancement of science and processing technology is highly essential for the development of human civilization for a better life. Mass production leads to the availability of goods at a lesser price. Aluminium die-cast components are widely used in the automobile, aerospace, and consumer goods market. Proper process parameters are required to produce components with minimum rejections and scrap. This paper studies optimum injection parameters to produce components without defects. …
Published in Journal of Polymer & Composites · Vol. 11, Issue 13, 2023 · pp. 135–142 Read article