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43 articles for “CFD”
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CFD-subset-FVM-based MATLAB-simulation of Heat Transfer in High Grade Cold Storage Augmenting Cryogenic Energy Storage System by Circulating Natural Gas as Working Fluid : Conceptual Review
Abstract: Abstract. Cryogenic Energy Storage (CES) improves power grid with renewable intermittent power sources. In CES, off-peak excess electricity liquefies air or natural gas. Cryogen is stored in large dewar tanks for long periods of time. Whenever electricity need is in peak, work is recovered from cryogen by a power cycle using waste heat. Many researchers focus on liquid air energy storage (LAES). But, natural gas is promising working fluid for …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 5, Issue 2, 2019 · pp. 1–5 Read article
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A Review of Combustion Modeling Techniques for IC Engines: CFD Simulations and Experimental Correlations
Abstract: For a long time, internal combustion (IC) engines have been the mainstay of power generating and transportation systems. However, a move toward cleaner and more efficient engine technologies has been spurred by stricter pollution restrictions and growing environmental concerns. In this context, combustion modeling has emerged as a critical tool for understanding in-cylinder processes and improving engine performance. This review focuses on the evolution and application of various combustion modeling …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 11, Issue 1, 2025 · pp. 13–20 Read article
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CFD Analysis of Hydrodynamic Journal Bearing
Abstract: Journal bearings have the longest history on scientific study of any class of fluid-film bearings. These journal bearings are widely used in most of the rotating machineries due to its high load-carrying capacity and formation of fluid-film thickness during the operation. This research paper represents performance evaluation of hydrodynamic journal bearing using Computational Fluid Dynamics (CFD) approach. For this study, two different geometrical bearings are considered (circular and non-circular) operating …
Published in International Journal of Manufacturing and Materials Processing · Vol. 4, Issue 2, 2018 · pp. 23–29 Read article
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CFD on Parametric Analysis of Compression Ignition Engine by using Star CCM+
Abstract: Stringent emission from the conventional vehicles draws attention of automobile researches to develop engine either high fuel efficiency and low emission of NOx, CO and unburnt hydrocarbons. Hence, there by Homogeneous charge compression ignition came to the effect. Homogeneous charge compression ignition engine is the type of engine the well organised mixture of air and fuel ratio enters into the combustion chamber, and it is compressed up to auto-ignited temperature …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 7, Issue 2, 2021 · pp. 27–66 Read article
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CFD Analysis on Exhaust System of a Car
Abstract: The pollution and global warming is due to air pollution. It is to be noted that air pollution is mainly caused by the toxic gases from the exhaust of the automobiles. Only 30% of the fuel is converted into energy source to run the engine remaining 70% of fuel is of un-burnt hydrocarbon, carbon monoxide and nitrogen oxides. From modified catalytic converter, noise level will decrease. Here, the performance of …
Published in International Journal of Mechanics and Design · Vol. 5, Issue 1, 2019 · pp. 38–50 Read article
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CFD Analysis of Earth Heat Exchanger with Air as a Cooling Medium
Abstract: An earth air tube heat exchanger (EATHE) uses the thermal energy of the ground for the air cooling in summer and air heating in winter due to the temperature difference between the air and underground surface. With the help of EATHE we can reduce the energy consumption required for space heating or cooling. However, for determining the surface heat convection, due to lack of available methods it is difficult to …
Published in International Journal of Computer Aided Manufacturing · Vol. 3, Issue 2, 2017 · pp. 21–30 Read article
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A Computational Study of Solar Air Heater for Its Performance Enhancement by Numerical Approach Using Standard CFD Tools
Abstract: In the following report, the main objective is to calculate the efficiency of the solar air heater, mean exit temperature of air using CFD (Computational Fluid Dynamics) simulation. CFD software promises to be a futuristic field of application especially in the field of thermal engineering. The analysis is performed on a two dimensional built solar air heater. The geometry modelling is done in “Gambit” software followed by its analysis for …
Published in International Journal of Computer Aided Manufacturing · Vol. 1, Issue 2, 2016 · pp. 21–27 Read article
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CFD Study on the Effect of Air Bubble Injection Performance of a Horizontal Helical Shell and Coiled Tube Heat Exchanger
Abstract: In present review, a shell and curled cylinder heat exchanger will be numerically considered. The creation technique for helically looped tube which contains turbulator and furthermore the impacts of turbulator on warm and frictional qualities of hotness exchanger will be introduced in this review. CFD examination on ANSYS FUENT programming will be acted in two principle modes. In first mode, the liquid of looped cylinder will be water and in …
Published in International Journal of Mechanics and Design · Vol. 7, Issue 2, 2021 · pp. 1–29 Read article
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CFD Analysis and Prediction of Shockwave/Boundary-Layer Interaction at Hypersonic Flows Using RANS Models
Abstract: Interaction of shockwaves with turbulent boundary layer plays an important role in the design and operability of high-speed aerospace vehicles and air-breathing engines. The adverse pressure gradient of the shock is often strong enough to separate the boundary layer. The objective of the present research paper deals with the analysis of hypersonic viscous flows dominated by strong shockwave/boundary-layer interactions (SWBLI) over wing-flap and wing-fuselage junction configurations. The effects of the …
Published in International Journal of Computer Aided Manufacturing · Vol. 5, Issue 2, 2019 · pp. 33–50 Read article
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CFD Analysis and Modification of Muffler of 1067 cc4 Cylinder Inline Engine for Better Performance
Abstract: Back pressure is one of the important parameter which determine the performance of the muffler. Pressure drop of the exhaust system includes losses due to piping, silencer, and termination. The most critical mechanical factor regarding backpressure of any commercial modified and available muffler is cross flow perforated tube in which the diameter of the perforated tube hole and porosity of the perforations are most critical. In this paper, the objective …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 3, Issue 1, 2017 · pp. 40–46 Read article
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CFD Simulation on Ground Tube Heat Exchanger using Copper and Aluminum as Tube Material
Abstract: Renewable energy is free in nature and it must be brought into application. Due to use of air conditioning and its refrigerants global warming is a serious issue. Renewable energy is the main concept of an earth tube heat exchanger, which uses the thermal energy of the ground for cooling and heating of the fluid medium. Here, air is used as fluent working medium. The air cools in summer and …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 6, Issue 2, 2020 · pp. 49–74 Read article
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CFD of Transition from Bubbly Flow to Slug Flow in Vertical Pipe
Abstract: The transitional regimes of two-phase flow are widely met in many industrial practices. The phenomena of the transition flows are very complex. How to measure and simulate the transition flows are really challenging to the engineers. In this paper, the new Lagrangian algebraic slip mixture model (LASMM) was employed to quantity the transitional regimes of two-phase flow in a vertical pipe. In the application of this model, the typical flow …
Published in International Journal of Chemical Engineering and Processing · Vol. 1, Issue 1, 2015 · pp. 14–20 Read article
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Exploring the Flow Physics during Unsteady Shock Interactions Using CFD and Numerical Analysis
Abstract: Numerical reproductions were done to analyze a Shock Interaction component in the twofold wedge design. The first wedge edge is steady in quite a while. Huge contrasts in stream structure were seen between the calculations with different edges on second wedge. The most exceptional violent variances happened toward the edges of the whole area. Symmetric and antisymmetric movements of the detachment district were recognized in the immediate stream utilizing restrictive …
Published in International Journal of Mechanics and Design · Vol. 5, Issue 2, 2019 · pp. 40–55 Read article
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Enhancing the Heat Transfer in the Thermal Chimney by Attaching the Fin under CFD Analysis
Abstract: The primary and secondary heaters in heat exchangers were numerically evaluated at nominal temperatures of 140°C for the primary heaters, 100°C for the secondary heaters, and 20°C for the ambient temperature in order to validate the design idea for enhancing the air temperature. The “convective heat transfer” of air in a thermal chimney built to laboratory size using two different types of electrical heaters and a rectangular cross-section of constant …
Published in International Journal of Mechanics and Design · Vol. 9, Issue 2, 2023 · pp. 9–26 Read article
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CFD Study on Thermoelectric Applications for the Utilization of Waste Heat Energies
Abstract: Commonly, thermoelectric thermal devices are utilized in cooling applications where space and convey ability are significant, however they can be utilized productively in warming applications under the correct conditions. This paper clarifies the beginnings of the thermoelectric thermal devices, its applications in the public eye, and the specialized parts of the gadget. The wide range of appurtenances that the gadget requires will be talked about alongside their downsides. The single-stage …
Published in International Journal of Computer Aided Manufacturing · Vol. 7, Issue 1, 2021 Read article
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Heat Transfer Performance in an Internally Dimpled Tube Heat Exchanger Composed of Various Materials Examined Using CFD: A Review
Abstract: A review of the most important findings for thermal enhancement on circular pipe is presented, the focus is on the heat transfer and thermal gradient in these heat exchangers. The use of circular dimpled pipes, surfaces, and other techniques to promote heat transmission has been the subject of several studies in the past. Reviews are conducted on a sizable number of research papers pertaining to computational and experimental investigations. Various …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 9, Issue 2, 2023 · pp. 30–40 Read article
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Diesel Engine Combustion and Emission Characteristics Study, Taking into Account the Potential of Biogas Substitution for the Purpose of Enhancing Environmental Cleanliness and Promoting Health
Abstract: Necessity for alternative fuels arises from the escalating energy requirements and the detrimental effects of fossil fuel emissions on environmental well-being. Alternative fuels have been extensively researched to improve energy efficiency. A study examines how alternative fuel affects compression ignition (CI) engine performance, pollution, and combustion. Biogas is investigated as a diesel engine fuel substitute in this study using computational fluid dynamics (CFD). Upon doing a thorough examination of the …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 9, Issue 1, 2023 · pp. 24–39 Read article
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Thermal Dynamics and Kinetic Modelling of Cryogenic Fuels in Aerospace and IndustrialApplications
Abstract: Cryogenic fuels are critical for high-speed aerospace and industrial applications, where efficient handling, storage, and usage are paramount for performance and safety. This study explores the thermal dynamics and kinetic modeling of cryogenic fuels, focusing on liquid handling systems and propellant technologies. Utilizing computational fluid dynamics (CFD) analysis, the research evaluates the behavior of cryogenic liquids within insulated vessels under extreme temperature conditions, identifying key parameters that influence thermal stability …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article
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Modified Design Improvement Study and Optimization of a intake Manifold to Obtain Unequal Distribution of Velocity for Optimal Diesel Engine Performance
Abstract: Geometrical design of intake manifold has been found very significant for the better performance of an I.C. Engine. It becomes less effective at the intake manifold's runner's outlets due to an uneven flow distribution of the intake air. With an increase in velocity at the distribution channels, the presented study seeks to make this uneven velocity distribution nearly equal without requiring any additional significant changes to the entrance manifold's construction. …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 9, Issue 1, 2023 · pp. 13–23 Read article
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Performance of Industrial Gas Turbines through Blade Design and Cooling Strategies
Abstract: Industrial gas turbines are steam engines that leverage an ongoing stream of high pressure air togenerate mechanical power. These machines can be used for a variety of industrial applications,including that of the manufacturing of electricity, oil and gas, and the propulsion of ships andplanes. The classification can be made of an industrial gas turbine are a turbine, a combustionchamber, and a compressor. Incoming air is compressed by the compressor to …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 8, Issue 2, 2022 · pp. 36–40 Read article