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RISDirect and Inverse Model for Single-Hole Film Cooling With Machine Learning
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The direct prediction model for adiabatic film cooling effectiveness distribution and inverse prediction model for design parameters are studied in this article. Convolutional neural networks (CNNs) are trained on a set ...
Effects of Reynolds Number and Tooth Front Angle on Leakage Loss and Heat Transfer Characteristics in a Rotating Labyrinth Seal
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The labyrinth seal is effective in reducing leakage losses at the rotor blade top in the turbine. This study investigates the variation in labyrinth seal performance at different rotational speeds, different Reynolds ...
Heat Transfer Characteristics in a Rotating Pin Finned Duct With Different Protrusion Locations
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: The heat transfer in a pin finned duct is augmented by the protrusion in this study. The realizable k–ε turbulence model coupled with the enhanced wall function is used to obtain the flow structure and heat transfer ...
Infrared Drying Characteristics and Quality Variations of Lily Bulbs Under Blanching Pretreatment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Infrared drying characteristics and quality variations (color change, hardness, contents of polyphenol and flavonoid) of lily bulbs under blanching pretreatment are investigated. Influences of parameters such as pretreatment ...
Film Cooling in the Cutback for Trailing Edge With Different Incident Angles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The cutback film cooling was important to decrease the trailing edge temperature and prolong the working life of gas turbines. Many investigations concerning cutback film cooling have already been done. However, only a few ...
On the Aero-Thermal Performance of Rim Film Cooling in the Squealer Tip of a Linear Turbine Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present study proposes a novel rim film cooling design, motivated by the fact that the suction-side rim and the cavity floor near the leading edge of a conventional squealer tip with a camber-line film hole array are ...
Flow Structure and Heat Transfer Characteristics of a Rectangular Channel With Pin Fins and Dimples With Different Shapes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, numerical simulations are conducted to investigate the effects of pin fin and dimple shape on the flow structure and heat transfer characteristics in a rectangular channel. The studied shapes for dimple and ...
On the Heat Transfer and Flow Structures’ Characteristics of the Turbine Blade Tip Underside With Dirt Purge Holes at Different Locations by Using Topological Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper numerically investigated the impact of the holes and their location on the flow and tip internal heat transfer in a U-bend channel (aspect ratio = 1:2), which is applicable to the cooling passage with dirt purge ...
Pore Formation and Performance Enhancement of Nanopore-Rich High Porosity Aerated Cement via Nanomontmorillonite
Publisher: American Society of Civil Engineers
Abstract: Nanopore-rich high porosity aerated cement (NHPAC) was prepared by introducing nanomontmorillonite slurry (NMS) into aerated cement paste, and the rheology of slurry, pore structure (air voids and microscopic pores), ...