The flow around aligned cylinders is an archetype for several industrial devices (rod structure of the nuclear reactors, compact heat exchangers for electronic components, pin-fins heat exchangers for micro-devices ) and environmental phenomena (diffusion process close to the vegetation). Cylinders produce instabilities in the flow structures that are very sensitive to the control parameters such as the inflow velocity, the spacing between the cylinders and the fluid viscosity. The instabilities leads the transport phenomena close to the cylinders and they affect the force, the thermal balance at their surface and the diffusion process. The strong velocity gradients in confined spaces make that the experimental analysis is difficult, while the numerical simulation appears to be a promising tool for this purpose.

Flow transitions around in line cylinders

Fornarelli F.;ORESTA, Paolo;LIPPOLIS, Antonio Donato
2014

Abstract

The flow around aligned cylinders is an archetype for several industrial devices (rod structure of the nuclear reactors, compact heat exchangers for electronic components, pin-fins heat exchangers for micro-devices ) and environmental phenomena (diffusion process close to the vegetation). Cylinders produce instabilities in the flow structures that are very sensitive to the control parameters such as the inflow velocity, the spacing between the cylinders and the fluid viscosity. The instabilities leads the transport phenomena close to the cylinders and they affect the force, the thermal balance at their surface and the diffusion process. The strong velocity gradients in confined spaces make that the experimental analysis is difficult, while the numerical simulation appears to be a promising tool for this purpose.
1st Workshop SCORE@POLIBA
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11589/18430
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact