application of cogeneration systems based gas turbine for heat and power production is increasing. because of finite natural energy resources and increasing energy demand the cost effective design of energy systems is essential. cgam problem as a cogeneration system is considered here for analyzing. two new approaches are considered, first in thermodynamic model of gas turbine and cogeneration ...

The MDAO framework has become an essential part of almost all fields, apart from mechanical, transportation, and aerospace industries, for efficient energy conversion or otherwise. It enables rapid iterative interaction among several engineering disciplines at various fidelities using automation tools design improvement. An advanced low to high fidelity is developed ducted unducted turbomachine...

1. Abstract Gas turbine engines for aerospace applications have evolved dramatically over the last 50 years through the constant pursuit for better specific fuel consumption, higher thrust-to-weight ratio, lower noise and emissions all while maintaining reliability and affordability. This paper addresses one facet of this inter-disciplinary optimization problem – optimal design of a turbine bla...

Active magnetic bearings (AMBs) are a mature bearing technology that is being applied to many new turbomachines. They have become the bearing of choice for most new turboexpander applications. They are seen as a key enabling technology for compact, high speed, high power density direct-drive generators and turbomachinery. As more and more units are fielded, it will become important that end-use...

The study of cavity flow is one the most important research topics unsteady aerodynamics. Supersonic turbulent flows over a are mostly encountered in missiles, turbomachinery, and high-speed aircraft. turbulence inside gives rise to excess drag, acoustic waves, pressure fluctuations, vibrations which may lead numerous problems like fuel consumption, failure missile trajectory or mechanical part...

Flow separation is ubiquitous in turbomachinery. Compared with the more mature turbomachinery flow control method where medium gas, liquid cannot be controlled well. In this study, according to principle of aircraft fowler flap, taking stator blade hydraulic torque converter as basic research object, shape fitted Joukowsky transformation, and then it slotted. Computational fluid dynamics used p...