Explicit Navier-Stokes computation of turbomachinery flows
Thesis/Dissertation
·
OSTI ID:7016317
A new three-dimensional explicit Navier-Stokes procedure was developed for computation of turbulent turbomachinery flows. Numerical strategies and modeling techniques were developed and incorporated that enable convergent and accurate predictions of high-Reynolds-number flow fields across a wide range of Mach numbers. Detailed stability and order-or-magnitude analyses are performed on the discrete system of seven governing equations. The results of these analyses and corroborative numerical experiments are provided. Conclusions are drawn concerning the influence of system rotation and turbulence transport source terms, grid clustering, effective diffusivity, artificial dissipation, convective acceleration terms, implicit source term treatment and the coupling of the discrete mean flow equation system to the turbulence model equations on the stability of the numerical scheme.
- Research Organization:
- Pennsylvania State Univ., University Park, PA (United States)
- OSTI ID:
- 7016317
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420200* -- Engineering-- Facilities
Equipment
& Techniques
420400 -- Engineering-- Heat Transfer & Fluid Flow
DIFFERENTIAL EQUATIONS
EQUATIONS
EQUIPMENT
FLOW MODELS
FLUID FLOW
MACH NUMBER
MACHINERY
MATHEMATICAL MODELS
NAVIER-STOKES EQUATIONS
PARTIAL DIFFERENTIAL EQUATIONS
REYNOLDS NUMBER
THREE-DIMENSIONAL CALCULATIONS
TURBOMACHINERY
TURBULENT FLOW
VELOCITY
420200* -- Engineering-- Facilities
Equipment
& Techniques
420400 -- Engineering-- Heat Transfer & Fluid Flow
DIFFERENTIAL EQUATIONS
EQUATIONS
EQUIPMENT
FLOW MODELS
FLUID FLOW
MACH NUMBER
MACHINERY
MATHEMATICAL MODELS
NAVIER-STOKES EQUATIONS
PARTIAL DIFFERENTIAL EQUATIONS
REYNOLDS NUMBER
THREE-DIMENSIONAL CALCULATIONS
TURBOMACHINERY
TURBULENT FLOW
VELOCITY