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Showing 1 to 20 of 64 for “"axial compressor"”.
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Axial compressor stall.
… experimental investigation of rotating stall in compressors of high hub-tip ratio. Measurements were obtained in builds of one to four stages, covering a wide range of design flow rates and also a change in design reaction. The purpose of the experimental work has been to gain a better …
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Axial compressor stability enhancement
… at all times. One source of instability is compressor stall. Stall problems can be reduced by machining cavities into the compressor casing adjacent to the rotor blades. This ‘casing treatment’ is the focus of the present work. Two treatment configurations are tested: circumferential grooves …
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Axial compressor reversed flow performance
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1985.
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Modular Multi-Stage Axial Compressor Design
… components, such as multi-stage axial compressors. It is the objective of this approach to utilize a "core" module in all the compressors, thus maximizing commonality and minimizing all relevant development, design, manufacture, procurement, and service costs; these reductions in …
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Computational Assessment of Axial Compressor Flowfield Instability
At low flow rates, the flowfield of axial compressors becomes unstable. Two examples of this are rotating stall (a compression system level instability) and so-called “Rotating Instabilities” (a localized fluctuation in the tip flow region). This thesis presents full-annulus URANS computations …
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A computational model for multistage axial compressor design
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1998.
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Investigation of mixing in a multistage axial compressor
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1990.
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Forced vibrations of a single stage axial compressor rotor.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 1978
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Role of tip clearance flow on axial compressor stability
… with several experimental observations on axial compressor stall inception. The implications of these results on the role of single blade passage computations in stall prediction and on the effectiveness of techniques used to delay stall are also discussed.
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Use of actuator disc model for modelling axial compressor dynamics
… herein, simplified ways of modelling the flow in axial compressors were investigated. In general full mathematical simulations of multi-stage axial compressors are not efficient in terms of calculation time and resources needed. Therefore to deal with such problems simplified models are used to …
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The effects of tip clearance on axial compressor pressure rise
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Implications of stability modeling for high-speed axial compressor design
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1997.
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Application of an energy-like stability metric for axial compressor design
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2003.
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Blade passage flow structure effects on axial compressor rotating stall inception
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1996.
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Active control of rotating stall in a three-stage axial compressor
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1993.
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Estimation of axial compressor body forces using three-dimensional flow computations
… force distributions in a single stage low speed compressor. The body force distributions are developed using two different computational procedures, an axisymmetric streamline curvature calculation and an unsteady, three-dimensional flow simulation. A two-dimensional body force representation is …
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Computational study of hub corner stall in an axial compressor rotor
The Deverson rotor, a single stage axial compressor designed to simulate a multistage axial compressor, was studied computationally using a 3-D Navier-Stokes solver, the Moore Elliptic Flow Program. A one equation, q-L, transitional turbulence model was used with MEFP for closure of the transport …
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Axial Compressor Design with Counter-Rotation and Variable RPM for Stall Mitigation
<p>Compressor Stall, an aerodynamic instability due to abnormal air flow in the compressor resulting in loss of total pressure and compressor performance. One of the reasons of compressor stall is due to rise in static back pressure at compressor exit which may result from an imbalance of incidence …
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Broadband Noise Prediction of an Axial Compressor Operating at Low Reynolds Number
… production and prediction of broadband noise in axial compressors operating at low Reynolds number. The low Reynolds number (chord based $Re_C \leq 5\times 10^4$) regime presents new flow physics by the large regions of laminar flow that are present in the compressor. As such it is unclear how …
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Robust control of a surge and rotating stall in an axial compressor
… presents an investigation of the stability of axial compression systems when external disturbances are introduced. Aerodynamic stability is considered from a nonlinear perspective. From this perspective, the goal is to enhance the ability of compressor systems to remain stable in the face of …
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