Results 41 to 50 of about 13,819 (98)

Power Balance Strategies in Steady-State Simulation of the Micro Gas Turbine Engine by Component-Coupled 3D CFD Method

open access: yesAerospace, 2023
Currently, an increasing number of designers have begun to pay attention to a new paradigm for evaluating the performance with full engine 3-dimensional computational fluid dynamics (3D CFD) simulations.
Yibing Xu   +4 more
doaj   +1 more source

Investigation of Micro Gas Turbine Systems for High Speed Long Loiter Tactical Unmanned Air Systems

open access: yesAerospace, 2019
In this study, the on-going research into the improvement of micro-gas turbine propulsion system performance and the suitability for its application as propulsion systems for small tactical UAVs (<600 kg) is investigated.
James Large, Apostolos Pesyridis
doaj   +1 more source

Extreme Learning Machine-Based Diagnostics for Component Degradation in a Microturbine

open access: yesEnergies, 2022
Micro turbojets are used for propelling radio-controlled aircraft, aerial targets, and personal air vehicles. When compared to full-scale engines, they are characterized by relatively low efficiency and durability.
Nicola Menga   +4 more
doaj   +1 more source

Numerical Simulation of Combustion Chamber for Button Turbojet Engine

open access: yesMATEC Web of Conferences, 2016
To provide reference data for ultra-micro combustor, a new type button turbojet engine was designed and simulated the combustion’s steady-state process.
Ma Hongpeng   +4 more
doaj   +1 more source

Centrifugal Compressor and Bell mouth Air Intake Preliminary Design for Micro Turbojet Engine

open access: yesJournal of Karary University for Engineering and Science, 2021
This paper presents a design of centrifugal compressor and air intake for micro turbojet engine of 200 N thrust. Because of the small size of the micro turbine engines the air intake is designed in the form of bellmouth air intake in order to capture the
Hamed Mohamed Ahmed Ali   +4 more
semanticscholar   +1 more source

An Experimental and Numerical Study on the Cavitation and Spray Characteristics of Micro-Orifice Injectors under Low-Pressure Conditions

open access: yesEnergies
A fuel injector plays a crucial role in an internal combustion engine, and the occurrence of cavitation inside the injector may affect the engine’s spray, atomization, and combustion efficiency.
Tzeng-Yuan Chen   +2 more
doaj   +1 more source

Experimental and Numerical Studies on Lobed Ejector Exhaust System for Micro Turbojet Engine [PDF]

open access: yesEngineering Applications of Computational Fluid Mechanics, 2011
Abstract:For the purpose of improving thrust and cooling the wall of the nozzle on a micro turbojet engine, the aerodynamic characteristics micro lobed ejector, which consists of a lobed nozzle and mixing, is studied using numerical calculations and experiments.
Yong Shan   +2 more
openaire   +1 more source

Research on Weight Reduction Design Method for Compressor of a Small Turbojet Engine

open access: yesHangkong gongcheng jinzhan, 2019
To improve the thrust-weight ratio of aero-engine and make it lightest, the weight reduction design method of a micro turbojet engine compressor is of a great importance.
Zhao Gaole   +4 more
doaj   +1 more source

Eddy Current Sensor System for Blade Tip Clearance Measurement Based on a Speed Adjustment Model

open access: yesSensors, 2019
Blade tip clearance (BTC) measurement and active clearance control (ACC) are becoming crucial technologies in aero-engine health monitoring so as to improve the efficiency and reliability as well as to ensure timely maintenance. Eddy current sensor (ECS)
Jiang Wu   +6 more
doaj   +1 more source

Comprehensive Survey of Micro Turbojet Experimentation: Sensor Technologies, Methodologies, and Research Trends

open access: yesMachines
From advanced research platforms to Unmanned Aerial Vehicles (UAVs), Micro Turbojet Engines (MTEs) have grown to be essential parts in many different kinds of applications.
Ahmed M. Shehata, Marco P. Schoen
doaj   +1 more source

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