Essays about: "transonic compressor"
Showing result 1 - 5 of 7 essays containing the words transonic compressor.
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1. Forced response numerical investigation of a transonic compressor rotor
University essay from KTH/Skolan för industriell teknik och management (ITM)Abstract : The present thesis discusses the forced response of a rotor’s bladed-disk when excited by the periodic force produced by a wake generator, or Inlet Guide Vane (IGV),with 8 equally-spaced blades. These components are part of an axial transonic compressor rig, moreover the Transonic Compressor Darmstadt 1 (TCD1), located at the Technical University of Darmstadt. READ MORE
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2. Numerical Investigation of Various Modelling Strategies for Throttling a Transonic Compressor Rig Diffuser
University essay from KTH/Kraft- och värmeteknologiAbstract : The concern of this study is modeling of the flow field in the diffuser of a 1.5 stage compressor test rig in which the mass flow is constrained at the exit of the diffuser. Constraining method is is applied through, throttling by means of a slab at the exit of the diffuser, where the flow enters the exit volute. READ MORE
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3. Numerical analysis of aerodynamic damping in a transonic compressor
University essay from KTH/Skolan för industriell teknik och management (ITM)Abstract : Aeromechanics is one of the main limitations for more efficient, lighter, cheaper and reliable turbomachines, such as steam or gas turbines, as well as compressors and fans. In fact, aircraft engines designed in the last few years feature more slender, thinner and more highly loaded blades, but this trend gives rise to increased sensitivity for vibrations induced by the fluid and result in increasing challenges regarding structural integrity of the engine. READ MORE
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4. Determination of aerodynamic damping at high reduced frequencies
University essay from KTH/Skolan för industriell teknik och management (ITM)Abstract : Forced response which is blade vibration due to an external excitation can lead to blade failure. The estimation of the level of vibration is dependent on the determination of aerodynamic damping. This thesisinvestigates the determination of aerodynamic damping at high reduced frequencies in turbomachines. READ MORE
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5. Effect of Axial Gap Distance on Transonic Compressor Performance
University essay from KTH/Kraft- och värmeteknologiAbstract : The modern trend of gas turbines design is towards lighter, highly efficient,and more compact engines. Such situation imposes on engineers to continuouslysearch for improved and optimum designs. The thesis presented aims at researching possible performance improvements regarding axial gapdistance in transonic compressors. READ MORE