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ISSN: 2212-540X

Thermodynamic performance modeling, optimization and numerical simulation of RBCC ejector mode

Ejector mode is a unique and critical phase of wide-range rocket-based combined cycle (RBCC) engine. In this paper, a quasi-one-dimensional thermodynamic performance modeling method, with more detailed...

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Local resistance characteristics of elbows for supercritical pressure RP-3 flowing in serpentine micro-tubes

Based on the demands of compact heat exchangers and micro cooling channels applied for aviation thermal protection on aero-engines, the elbow local flow resistance characteristics for supercritical...

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A deep learning-based approach for flow field prediction in a dual-mode combustor

Accurate acquisition of the distribution of flow parameters inside the supersonic combustor is of great significance for hypersonic flight control. It is an interesting attempt to introduce a data-driven...

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Predictor-corrector FDM analysis of MHD Darcy-Forchheimer flow of a micropolar fluid with viscous dissipation and heterogeneous-homogeneous

This research delves into an intricate exploration of fluid dynamics within heat transfer systems, with a specific focus on enhancing our understanding and improving system efficiency. Employing a sophisticated...

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A comprehensive aerodynamic-thermal-mechanical design method for fast response turbocharger applied in aviation piston engines

Limited by the poor transient response performance of turbochargers, the dynamic performance of aviation piston engines tends to deteriorate. In a bid to enhance the turbocharger's acceleration capabilities,...

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Natural convection in nanofluid enclosure under magnetic field: Entropy generation and economic analysis

This study investigates the unsteady natural convection and entropy generation under the effects of magnetic field and baffles inside a nanofluid filled E-shaped enclosure. The nanofluid flow is driven...

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Entropy generation minimization in the Carreau nanofluid flow over a convectively heated inclined plate with quadratic thermal radiation and chemical reaction: A Stefan blowing application

Entropy analysis can help to identify the sources of entropy generation in a heat transfer process more accurately than other methods, such as energy efficiency analysis. This is because entropy analysis...

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Effects of using sinusoidal porous object (SPO) and perforated porous object (PPO) on the cooling performance of nano-enhanced multiple slot jet impingement for a conductive panel system

Cooling system design for thermal management of electronic equipment, batteries and photovoltaic (PV) modules is important for increasing the efficiency, safety operation, and long life span the products....

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Influence of the zigzag fins and inlet arrangements on the cooling proficiency of the mini-channel heat sink

Mini-channel heatsinks are one of the most effective thermal management methods for high heat flux devices due to the high performance of convective heat transfer. In recent years, various techniques...

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Experimental study of corner separation and unsteady characteristics in linear compressor cascades with and without sweeping jet actuator

Sweeping jet actuator (SJA) has been widely applied for active flow control in open flows. In this paper, the SJA character in compressor cascade and its performance for separation control in inner...

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Adaptive Coanda jet control for performance improvement of a highly loaded compressor cascade

Gas turbine is a promising device for power generation and propulsion either using traditional or renewable energy fuels. One of its key problems is the flow instability of compressors especially with...

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Simulation of coupling characteristics of motion and heat transfer between airflow and ice crystals in a single-stage compressor

This paper investigates the coupling characteristics of motion and heat transfer between airflow and ice crystals in a single-stage compressor. The motion and phase transition process of ice crystal...

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A versatile volume-based modeling technique of distributed local quadratic convergence for aeroengines

For advanced aero-engine design and research, modeling and simulation in a digital environment is indispensable, especially for engines of complicated configurations, such as variable cycle engines...

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Deep learning-based modeling method for probabilistic LCF life prediction of turbine blisk

Turbine blisk is one of the typical components of gas turbine engines. The fatigue life of turbine blisk directly affects the reliability and safety of both turbine blisk and aeroengine whole-body....

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New insights into component matching mechanism in the compression system of double bypass engine

Variable cycle engine (VCE) is one of the most promising technologies for the next-generation aircraft, the matching of different components in the compression system is a key difficulty VCE faced....

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Effect of proton irradiation on the optical properties of thermal control coating based on polystyrene with silica filler

This paper presents the results of studying the surface properties changes of a thermoregulating coating based on polystyrene and silica filler after proton irradiation with an energy of 50 keV at a...

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A multi-objective and CFD based optimization of roof-flap geometry and position for simultaneous drag and lift reduction

As the transport sector is responsible for the consumption of a vast proportion of the oil produced, it is mandatory to research feasible solutions to tackle this issue. The application of aerodynamic...

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Effect of expansion waves on cowl shock wave and boundary layer interaction in hypersonic inlet

The interaction of cowl shock wave and boundary layer has a crucial effect on the stability, operability and performance of hypersonic inlets. Many studies on inhibiting the separation and managing...

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An overlapping grid spectral collocation analysis on a newly developed hybrid nanofluid flow model

The present study investigates the axisymmetric stagnation point radiative flow of a Cu-Al2O3/water hybrid nanofluid over a radially stretched/shrunk disk. In this paper, a new mathematical model has...

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Unsteady squeezing flow and heat transport of SiO2/kerosene oil nanofluid around radially stretchable parallel rotating disks with upper disk oscillating

In this study, we have analyzed fluid mobility and thermal transport of the SiO2/kerosene nanofluid within two rotating stretchable disks. The top disk is simulated to be oscillating with a periodic...

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Thermal analysis of melting effect on Carreau fluid flow around a stretchable cylinder with quadratic radiation

The melting phenomenon plays a critical role in optimizing the performance of power storage, electronic cooling, and semiconductor devices. The present study aims to analyze the melting effect on the...

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Anomaly distribution acquisition method for probabilistic damage tolerance assessment of hole features

Anomaly distribution is an essential input for the probabilistic damage tolerance assessment, which is required by the airworthiness certification criteria Federal Aviation Regulation (FAR) 33.70. The...

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Power and efficiency optimizations for an open cycle two-shaft gas turbine power plant

In finite-time thermodynamic analyses for various gas turbine cycles, there are two common models: one is closed-cycle model with thermal conductance optimization of heat exchangers, and another is...

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Static pressure redistribution mechanism of non-axisymmetric endwall based on radial equilibrium

Non-axisymmetric endwall contouring has been proved to be an effective flow control technique in turbomachinery. Several different flow control mechanisms and qualitative design strategies have been...

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Analytical analysis of inclined three-layered composite channel with cobalt ferrite nanoparticles and Hall current in Darcy medium

The present study explores the influence of electromagnetic effects on the flow of a nanofluid in a saturated permeable medium, confined between a clear viscous fluid in an inclined channel. The nanofluid...

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