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RISComparison of DDES and URANS for Unsteady Tip Leakage Flow in an Axial Compressor Rotor
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: Tip leakage vortex (TLV) has a large impact on compressor performance and should be accurately predicted by computational fluid dynamics (CFD) methods. New approaches of turbulence modeling, such as delayed detached eddy ...
Lateral Behavior of Traditional Chinese Timber-Frames Strengthened with Shape-Memory Alloy: Experiments and Analytical Model
Publisher: ASCE
Abstract: This study presents the test results of three specimens of traditional Chinese timber frames (TCTFs) with two types of column heights and two types of vertical loads. The specimens were initially loaded to damage, then ...
The Impact of Casing Groove Location on Stall Margin and Tip Clearance Flow in a Low Speed Axial Compressor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, the impact of single grooves at different locations on compressor stability and tip clearance flow are numerically and experimentally investigated. Initially, the numerical stall margin improvement (SMI) ...
Ultimate Flexural Capacity of a Severely Damaged Reinforced Concrete T-Girder Bridge
Publisher: American Society of Civil Engineers
Abstract: Rational and precise evaluation for ultimate flexural capacity is essential for accurate prediction of the safety margin and overload capacity of existing bridges. One of the spans of a 28- year-old distressed simply ...
Investigation of Vortical Structures and Turbulence Characteristics in Corner Separation in a Linear Compressor Cascade Using DDES
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Three-dimensional (3D) corner separation in a linear highly loaded compressor cascade is studied by using delayed detached-eddy simulation (DDES) method. This paper studies the flow mechanism of corner separation, including ...
Rotational Behaviors of Fork-Column Dou-Gong: Experimental Tests and Hysteresis Model
Publisher: ASCE
Abstract: This paper presents an investigation on the rotational behaviors of fork-column Dou-Gong. Five scaled specimens in different construction forms were manufactured and tested by low reversed cyclic loading under three different ...
Effect of RANS Method on the Stall Onset Prediction by an Eigenvalue Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The eigenvalue approach is a recently developed compressor stability model used to predict stall onset. In this model, the flow field from a Reynolds-averaged Navier–Stokes (RANS) simulation provides the basic flow. This ...
An Exponential Decay Model for the Deterministic Correlations in Axial Compressors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The unsteady blade row interaction (UBRI) is inherent and usually has a large effect on performance in multistage axial compressors. The effect could be considered by using the average-passage equation system (APES) in ...
All-Time Modeling of Co-Current Spontaneous Water Imbibition Into Gas-Saturated Rocks Using a Novel Transition Time
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Spontaneous imbibition (SI) into a porous medium is an important transport phenomenon in petroleum reservoir engineering. The study of spontaneous water imbibition is critical to predict the production performance in these ...
CenterTrack3D: Improved CenterTrack More Suitable for Three-Dimensional Objects
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Compared with two-dimensional (2D) multi-object tracking (MOT) algorithms, three-dimensional (3D) multi-object tracking algorithms have more research significance and broad application prospects in the unmanned vehicles ...