Computation Transport Phenomena in Chemical Engineering. Analysis on Retardation of Mass Transport in a Mixing Layer using Direct Numerical Simulation.

DOI Web Site Web Site 9 References

Bibliographic Information

Other Title
  • 流れの数値解析と化学装置のモデリング　　混合層における物質輸送抑制現象のＤＮＳ解析
  • コンゴウソウ ニ オケル ブッシツ ユソウ ヨクセイ ゲンショウ ノ DNS

Search this article

Abstract

Direct numerical simulation of a two-dimensional mixing layer is conducted and mass transport phenomenon are discussed based on the database obtained from the simulation. Retardation of mass transport in the initial vortex formation region of the mixing layer is pointed out and its mechanism is discussed by comparing the terms that make up the transport equation of mass flux v'c'. Retardation of mass transport originates through the effect of the turbulent diffusion term-∂ (v' v' c') /∂y suppresses the mass transport. This phenomenon is discussed in detail by considering the instantaneous turbulent diffusion term. At the initial vortex formation region of the mixing layer, interaction between (1) large velocity induced by a secondary flow formed by the interaction between the vortices and (2) tail-type instantaneous concentration profile is considered to have a large effect on the instantaneous turbulent diffusion term, retarding mass transport.

Journal

References(9)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top