𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Direct numerical simulation of transition to turbulence in an oscillatory channel flow

✍ Scribed by L.Héctor Juárez; Eduardo Ramos

Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
278 KB
Volume
331
Category
Article
ISSN
1631-0721

No coin nor oath required. For personal study only.

✦ Synopsis

In this Note, we present results of the numerical simulation of transition to turbulence for a purely oscillatory channel flow. These simulations were performed for various values of the Reynolds number, the so-called Stokes parameter being equal to 4. The methodology used for the flow simulation relies on a combination of finite element space approximations with timediscretization by operator splitting; it has shown to be very effective, even when it is applied to relatively complex domains with strong expansions at the inlet and outlet of the channel. The numerical results obtained agree qualitatively well with previous experiments by other investigators.

📜 SIMILAR VOLUMES

Lattice BGK direct numerical simulation
Lattice BGK direct numerical simulation of fully developed turbulence in incompressible plane channel flow
✍ P. Lammers; K.N. Beronov; R. Volkert; G. Brenner; F. Durst 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 979 KB

Over the last decade, lattice Boltzmann methods have proven to be reliable and efficient tools for the numerical simulation of complex flows. The specifics of such methods as turbulence solvers, however, are not yet completely documented. This paper provides results of direct numerical simulations (

Direct numerical simulation of rough-wal
Direct numerical simulation of rough-wall heat transfer in a turbulent channel flow
✍ Yutaka Miyake; Koichi Tsujimoto; Masaru Nakaji 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 722 KB

Heat transfer in a channel of rough wall is simulated in this work. Two kinds of roughness are considered, i.e., one assumes sandgrain roughness based on roughness model and the other regularly arranged two-dimensional ribs. No models other than sand-grain roughness implemented in the simulation. Fo