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RISNumerical Investigation of Negative Flow Characteristics in a Centrifugal Compressor With Vaned Diffuser and Internal Volute
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Negative flow from the outlet through the volute, diffuser, and impeller to the inlet of the centrifugal compressor can occur continuously as a result of system accidents. A physical comprehension of negative flow dynamics ...
Performance Analysis of Organic Rankine Cycle With Preliminary Design of Radial Turbo Expander for Binary Cycle Geothermal Plants
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In order to produce less emission of greenhouse gases, many studies have been done on the binarycycle geothermal power plant to obtain better performance. The radial turbo expanders play an important role in the performance ...
A Quantitative Evaluation Method for Impeller-Volute Tongue Interaction and Application to Squirrel Cage Fan With Bionic Volute Tongue
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The impeller–volute tongue interaction strongly influences the aerodynamic performance of squirrel cage fan. To quantitatively evaluate the level of impeller–volute tongue interaction, we propose two parameters, i.e., ...
Numerical Investigation on Labyrinth Seal Leakage Flow and Its Effects on Aerodynamic Performance for a Multistage Centrifugal Compressor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Labyrinth seals are widely used in industrial centrifugal compressors to reduce leakage. However, no work has been conducted to numerically investigate the detailed seal leakage flow and its effects in an environment of ...
Metamodel-Driven Data Mining Model to Support Three-Dimensional Design of Centrifugal Compressor Stage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The advanced design of a centrifugal compressor with high efficiency and wide operating range is a challenging task due to the complex flow field arising from the three-dimensional geometry, especially for the high-speed, ...
Conjugate Heat Transfer Simulation and Entropy Generation Analysis of Gas Turbine Blades
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Reynolds-averaged Navier–Stokes (RANS) model-based conjugate heat transfer (CHT) method is so far popularly used in simulations and designs of internally cooled gas turbine blades. One of the important factors influencing ...
Numerical Study on Conjugate Conduction–Convection in a Cubic Enclosure Submitted to Time Periodic Sidewall Temperature
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The laminar conjugate conductionnatural convection heat transfer in a cubic enclosure of finite thickness conductive walls and central cavity filled with fluid is comprehensively studied by using recently developed high ...
A Dimension Reduction-Based Multidisciplinary Design Optimization Method for High Pressure Turbine Blades
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The complex aero-thermal coupling between fluid and solid regions within high-pressure turbines makes it important to perform multidisciplinary design optimization of high-pressure turbine blades. However, most published ...
Metamodel-Interpreted Data Mining for Stability and Efficiency Enhancement of Multistage Axial-Flow Compressors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The tradeoff between higher efficiency and wider stability of performance map is still one of the bottlenecks to hamper the further research and development of advanced multistage axial-flow compressor. The recent rapid ...
Optimization of Three-Dimensional Blade and Variable Stators for Efficiency and Stability Enhancement of Multistage Axial Flow Compressor at Variable Speeds
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: High efficiency and wide stability at variable speeds are equally important to the design and operation of multistage axial flow compressors. However, published research works on three-dimensional design optimization of ...