A5004886947- Turbomachinery Performance and Optimization
- Refrigeration and Air Conditioning Technologies
- Heat Transfer Mechanisms
- Fluid Dynamics and Turbulent Flows
- Heat Transfer and Optimization
- Aerodynamics and Fluid Dynamics Research
- Cyclone Separators and Fluid Dynamics
Shanghai Jiao Tong University
2018-2022
The windage heating effect constitutes a significant contributor to the loss mechanisms of cavity leakage flow. This paper adopts simplified flow model consisting injection at stator inlet and suction outlet investigate heating. A series parametric studies on ratio total temperature are conducted different rotational speeds incidences. In first place, effectiveness numerical method is validated against experimental results in terms overall compressor performance detailed field. Then...
Abstract The flow fields in rear stages of multi-stage axial compressor is difficult to measure detail owing the limited height and space. Thus, low speed research (LSRC) facilities which are modelled from have been widely used explore internal improve design. A newly-designed vertical LSRC facility established put into Shanghai Jiao Tong University. construction design features this introduced paper. cantilevered stage has tested test rig. Compressor performance, inter-stage parameters...
Numerical simulations with the steady 3D RANS were performed on a 4-stage low speed research compressor (LSRC) two typical configurations (a shrouded and redesigned cantilevered stator of third stator). The (SS) 0.67% labyrinth seal clearance blade height is prototype, (CS) 1.2% hub stator. fourth rotor that follows after was (RE) according to load inlet flow angle changed based overall performance LSRC distribution aerodynamic parameters along compared between prototype Flow characteristics...
This research presents the influence of low-solidity design on loss and stability cantilevered stator evolution hub leakage vortex. The highly loaded 4-stage low-speed compressor (LSRC) with an embedded (CS) Stator 3 (S3) was experimentally measured at blade row outlet in S3 passage, respectively, URANS simulation method calibrated accordingly. Then, prototype CS number reduced, namely (LSCS), to increase loading. diffusion factor ( DF) LSCS midspan working condition is 5.2% higher than that...
This paper focuses on the effect of hub clearance in design space highly loaded cantilevered stator. The embedded 1.5 stages a low-speed research compressor (LSRC) were conducted with Unsteady Reynolds Average Navier-Stokes (URANS) numerical investigation, and stator adopts positive bowed fore-sweep three-dimensional design. details that increasing from 1.1% to 4.5% span, loss coefficient total leakage momentum correspond change blade loading near hub. When designing inlet metal angle rotor...