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- Title
The Length Scale Effect between Wall and Closes Field Point on a Single Turbine Blade Simulation.
- Authors
Noh, Mohd Hafiz Mohd; Ahmad Hussein Abdul Hamid; Koichi Mori
- Abstract
A numerical code has been developed based on experiment data, by using Finite Volume Method. Four different turbulence models (one equation model) have been tested; Spalart-Allmaras, Delay Eddy Simulation, Delay Detached Eddy Simulation and Improve Delayed Detached Eddy Simulation. The exit Reynolds number is 2.8 x 106 and the exit isentropic Mach number is 0.79. The code has been validated with isentropic Mach number around the blade, trailing edge pressure distribution, vortex shedding frequency at S/D=-0.62 and boundary layer profile at a distance equal to one. DDES has shown a good agreement qualitatively and quantitatively with the experiment as compared with others and at region -1<S/D<1, all results show insignificant different.
- Subjects
TURBINE blades; BOUNDARY layer (Aerodynamics); VORTEX shedding; MACH number; MATHEMATICAL models of turbulence
- Publication
Journal of Mechanical Engineering (1823-5514), 2018, Vol 5, p155
- ISSN
1823-5514
- Publication type
Article