Loading...
Please wait, while we are loading the content...
Similar Documents
Finite element method simulation of turbulent wavy core-annular flows using a kω turbulence model method
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ko, Tay Zar Ko Choi, Han Gil Bai, Runsheng Joseph, Daniel D. |
| Copyright Year | 2002 |
| Abstract | A numerical simulation of wavy core flow was carried out by Bai, Kelkar and Joseph. (1996). They calculated the interfacial wave shape for laminar flow. In our present simulation, the SST (shear stress transport) turbulence model is used to solve the turbulent kinetic energy and dissipation rate equations and a splitting method is used to solve Navier-Stokes equations for the wave shape, pressure gradient and the profiles of velocity and pressure in turbulent wavy core flows. The wavelength decreases with Reynolds number R and with the volume ratio η. The pressure gradient increases with Reynolds number R and with the volume ratio η. High pressures are generated at a stagnation point leading to wave steepening, while low pressures are generated at a reattachment point. The computed wave shapes and frictional losses are in satisfactory agreement with experiments and greatly improve on previous results. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.aem.umn.edu/people/faculty/joseph/archive/docs/turb_paper_small.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Computer simulation Experiment Finite element method Flow Gradient Kinetics Navier–Stokes equations Supersonic Transport Turbulence kinetic energy Turbulence modeling Velocity (software development) shear stress wavelength |
| Content Type | Text |
| Resource Type | Article |
