scholarly journals An energy-stable scheme for incompressible Navier-Stokes equations with periodically updated coefficient matrix

2020 ◽  
Vol 418 ◽  
pp. 109624
Author(s):  
Lianlei Lin ◽  
Naxian Ni ◽  
Zhiguo Yang ◽  
Suchuan Dong
Keyword(s):  
Stokes Equations ◽  
Coefficient Matrix ◽  
Navier Stokes ◽  
Navier Stokes Equations ◽  
Energy Stable ◽  
Energy Stable Scheme ◽  
Stable Scheme

scholarly journals Simulating two-phase flows with thermodynamically consistent energy stable Cahn-Hilliard Navier-Stokes equations on parallel adaptive octree based meshes

2020 ◽  
Vol 419 ◽  
pp. 109674
Author(s):  
Makrand A. Khanwale ◽  
Alec D. Lofquist ◽  
Hari Sundar ◽  
James A. Rossmanith ◽  
Baskar Ganapathysubramanian
Keyword(s):  
Stokes Equations ◽  
Navier Stokes ◽  
Two Phase Flows ◽  
Two Phase ◽  
Navier Stokes Equations ◽  
Energy Stable

Effects of stator splitter blades on aerodynamic performance of a single-stage transonic axial compressor

2020 ◽  
Vol 14 (4) ◽  
pp. 7369-7378
Author(s):  
Ky-Quang Pham ◽  
Xuan-Truong Le ◽  
Cong-Truong Dinh
Keyword(s):  
Stokes Equations ◽  
Three Dimensional ◽  
Axial Compressor ◽  
Aerodynamic Performance ◽  
Numerical Results ◽  
Single Stage ◽  
Navier Stokes ◽  
Navier Stokes Equations ◽  
Operating Stability ◽  
Length Coverage

Splitter blades located between stator blades in a single-stage axial compressor were proposed and investigated in this work to find their effects on aerodynamic performance and operating stability. Aerodynamic performance of the compressor was evaluated using three-dimensional Reynolds-averaged Navier-Stokes equations using the k-e turbulence model with a scalable wall function. The numerical results for the typical performance parameters without stator splitter blades were validated in comparison with experimental data. The numerical results of a parametric study using four geometric parameters (chord length, coverage angle, height and position) of the stator splitter blades showed that the operational stability of the single-stage axial compressor enhances remarkably using the stator splitter blades. The splitters were effective in suppressing flow separation in the stator domain of the compressor at near-stall condition which affects considerably the aerodynamic performance of the compressor.

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