In mechanical engineering, turbomachinery describes machines that transfer energy between a rotor and a fluid, including both turbines and compressors. While a turbine transfers energy from a fluid to a rotor, a compressor transfers energy from a rotor to a fluid. The two types of machines are governed by the same basic relationships including Newton's second law of motion and Euler's energy equation for compressible fluids. Centrifugal pumps are also turbomachines that transfer energy from a rotor to a fluid, usually a liquid, while turbines and compressors usually work with a gas. R0t0r is from efnet ... A subset of the phases of matter, fluids include liquids, gases, plasmas and, to some extent, plastic solids. ... WWII era ship propulsion turbine A turbine is a rotary engine that extracts energy from a fluid flow. ... A gas compressor is a mechanical device that increases the pressure of a gas by reducing its volume. ... Newtons First and Second laws, in Latin, from the original 1687 edition of the Principia Mathematica. ... In fluid dynamics, the Euler equations govern the motion of a compressible, inviscid fluid. ... A pump is a mechanical device used to move liquids or gases. ...
Methods for simulating the performance of turbomachinery bladerows operating in circumferentially non-uniform flows have been successfully developed.
The focus in turbomachinery CFD is now firmly on unsteady flow, design optimisation and turbulence/transition modelling.
The interest in unsteady flow is in understanding the flow physics associated with blade row interactions and also attempting to predict the blade row acoustics (transonic fan noise is being studied under the RESOUND programme).
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