CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

On the Numerical Modeling of Impinging Jets Heat Transfer - A Practical Approach

Mirko Bovo (Institutionen för tillämpad mekanik, Förbränning) ; Lars Davidson (Institutionen för tillämpad mekanik, Strömningslära)
Numerical Heat Transfer, Part A Applications (1040-7782). Vol. 64 (2013), 4, p. 290-316.
[Artikel, refereegranskad vetenskaplig]

This article compares steady-state and transient simulations in predicting impinging jet heat transfer. The configurations tested are H/D=2 and 6, Re=10,000, 20,000, 23,000, and 30,000. The variables considered are: turbulence model (LES, k-E, k-, V2F), discretization schemes, mesh density and topology, inlet velocity profile, and turbulence. The V2F model performs best for the steady state simulations. The inlet velocity profile plays an important role. Mesh topology and distribution is also important. The turbulence created in the shear layer plays a stronger role than the inlet turbulence. The LES model reproduces the turbulent structures with a useful degree of accuracy.

Nyckelord: flow-field, air-jet, impingement, turbulence, nozzle, pipe

Denna post skapades 2013-06-27. Senast ändrad 2013-07-17.
CPL Pubid: 179395


Läs direkt!

Lokal fulltext (fritt tillgänglig)

Länk till annan sajt (kan kräva inloggning)