Heat transfer enhancement in square ducts with V-shaped ribs

Summary, in English

This paper concerns a numerical investigation of the heat and fluid flow in V-shaped ribbed ducts. The Navier-Stokes equations and the energy equation are solved in conjunction with a low Reynolds number k-epsilon turbulence model. The Reynolds turbulent stresses are computed with an explicit algebraic stress model (EASM) while the turbulent heat fluxes are calculated with a simple eddy diffusivity model (SED). Detailed velocity and thermal field results have been used to explain the effects of the V-shaped ribs and the mechanisms of the heat transfer enhancement.

• Författare: Rongguang Jia; A Saidi; Bengt Sundén
• Avdelning/ar: Värmeöverföring
• Publiceringsår: 2003
• Språk: Engelska
• Sidor: 788-791
• Publikation/Tidskrift/Serie: Journal of Turbomachinery
• Volym: 125
• Issue: 4
• Länkar: http://dx.doi.org/10.1115/1.1622708
• Dokumenttyp: Artikel i tidskrift
• Förlag: American Society Of Mechanical Engineers (ASME)
• Ämne: Energy Engineering
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 1528-8900