Journal of Turbomachinery: Recent submissions
Now showing items 41-60 of 4519
-
Modeling Deposition in Gas Turbines With Conjugate Mesh-Morphing and Temperature Sensitivity
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. A versatile procedure is presented for simulating the growth and thermal impact of deposition in representative gas turbine cooling circuits. The methodology comprises the following sequence: (1) employ computational ... -
Investigation of the Effect of Seal Clearance on the Performance Characteristics of a High Flow Coefficient Stage
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. During the design iterations for a centrifugal compressor, seal cavities are often omitted from computational fluid dynamics (CFD) simulations to streamline and expedite the design process, with parasitic loss ... -
The Influence of Axial Throughflow Swirl on Buoyancy-Induced Flow in a Compressor Cavity
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Next-generation aero-engine compressors will operate with overall pressure ratios exceeding 70:1. This will require shorter compressor blades, presenting a challenge to the designer when predicting tip clearance ... -
Extension of the Throughflow Solver for Predicting the Aerodynamic Performance of Fans With Inlet Distortion
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Next-generation aircraft with boundary layer ingesting (BLI) engines can reduce fuel consumption but pose challenges for fan and compressor operation due to inlet distortion. To optimize the design of such engines, ... -
Topology Optimization of Discontinuous Fin-Based Microchannel Heat Exchangers
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The article provides the development of a multiobjective optimization function for designing discontinuous plate-fin microchannel heat exchangers (PFMCHEs). Stagnation pressure energy, thermal energy gain, and ... -
Effects of Blade Solidity and Aspect Ratio on a 0.5 Hub-to-Tip Ratio Tube-Axial Fan
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Blade solidity and aspect ratio are the two geometrical parameters that bridge the preliminary sizing of the fan with the aerodynamic design of the blade. In a previous work, the present authors started investigating ... -
Wind Tunnel Continuous-Scan Acoustic Analysis of Ducted Fan Tones Interacting With a Shielding Wall
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. High-bypass ratio ducted fans emit tonal and broadband noise in both forward and aft directions. While produced by common mechanisms, the noise radiating in each direction is typically treated as its own directional ... -
Unsteady Effectiveness Measurements in Rim Seals Through Fast Pressure-Sensitive Paint
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. In recent years, research on gas turbine rim seals has shown that the sealing performance is strongly influenced by the inherent unsteadiness of the problem, making it clear that a steady analysis is not sufficient ... -
Comparative Investigation of HPT Blade Cooling Concepts in an Aerothermal Test Rig
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This study presents a comparative investigation of complex high-pressure turbine blade cooling concepts, incorporating internal and external cooling features in upscaled realistic turbine blade models. The ... -
Analytical Study on the Influence of Stage-Wise Distribution of Parameters on the Performance of a Multistage Axial Compressor
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The design of compressors is one of the most complex tasks in the field of turbomachinery. The multitude of influencing factors contributes to the variability in achieving the required compressor parameters under ... -
Aerodynamic Effect of Shallow Circumferential Grooves in the Shroud of a Centrifugal Compressor
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The standard aerodynamic design of a centrifugal compressor features an unshrouded impeller with a smooth shroud. However, the shape of the shroud significantly influences the final compressor parameters. Previous ... -
Examining the Potential of High-Order Scale-Resolving Simulation to Support RANS-Based Compressor Airfoil Optimization
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Turbomachinery aerodynamic optimizations are predominantly carried out using Reynolds-averaged Navier–Stokes (RANS)-based computational fluid dynamics (CFD). The approach has reached a high level of maturity over ... -
Generative Inverse Aerodynamic Design of a Single-Stage Turbine Using Conditional Denoising Diffusion Probabilistic Model
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The aerodynamic design of turbomachinery is crucial for the overall performance of aero engines and has long been a paramount field of research. Traditional design methods are categorized into forward and inverse ... -
Investigation on the Flow and Loss Mechanism of Supersonic Through-Flow Variable-Pitch Tandem Cascade Under Extremely Wide-Speed Range Conditions
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The supersonic through-flow variable-pitch tandem cascade has a significant potential for widening the acceptable inflow range of fans, but its internal flow mechanisms are not yet fully understood. This study ... -
Experimental Investigation on the Surge Behaviors in the Centrifugal Compressor With Volute
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The surge phenomenon seriously restricts the stable operating range of centrifugal compressors, and how to delay the occurrence of surge has always been a hot topic in centrifugal compressor research. For centrifugal ... -
Thermo-Structural Design of an Air-Cooled Rotating Detonation Combustor for Gas Turbine Integration
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Rotating detonation combustion (RDC) is a promising technology with the potential to significantly enhance thermodynamic efficiency and reduce the footprint of propulsion and power generation systems. However, ... -
A Hyperbolic One-Dimensional Model for Two-Phase Flows in Converging–Diverging Nozzles
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Partial-evaporation organic Rankine cycle power systems are a promising technology for power generation from low-temperature heat sources such as waste heat and geothermal heat. A specific challenge in two-phase ... -
Experimental Study of Endwall Film Cooling and Heat Transfer for Different Upstream Slot and Hole Geometries in an Annular Sector Cascade Under High-Speed and Low-Speed Conditions—Part II: Heat Transfer and Aerodynamics
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Endwall film cooling strategies typically involve the employment of discrete holes or harness purge air that exits from the gaps between adjacent turbine components. Whichever the technique, the propagation of ... -
Experimental Study of Endwall Film Cooling and Heat Transfer for Different Upstream Slot and Hole Geometries in an Annular Sector Cascade Under High-Speed and Low-Speed Conditions—Part I: Film Cooling Effectiveness
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Endwall film cooling in dry-low emission (DLE) gas turbines is crucial due to increased thermal loads from flat temperature profiles. Cooling strategies typically employ discrete holes or utilize purge air that ... -
The Effect of Training Data on Predicting Turbulent Flow Through a Linear Cascade Using Physics-Informed Neural Networks
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This article investigates the effect of training data on the accuracy of turbulent flow predictions in the wake region of a linear turbine cascade using physics-informed neural networks (PINNs). While it is well ...