Pulsating flow and heat transfer in an annulus partially filled with porous media

Journal Article · Tue Apr 01 04:00:00 EST 1997 · Numerical Heat Transfer. Part A, Applications

DOI:https://doi.org/10.1080/10407789708914050· OSTI ID:509307

Guo, Z; Sung, H J; Hyun, J M ^[1]

---

1. Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of). Dept. of Mechanical Engineering

A numerical study is made of heat transfer characteristics from pulsating flow in a concentric annulus partially filled with porous media. The unsteady Navier-Stokes equations with the Brinkman-Forchheimer-extended Darcy model in the porous region are solved by using finite volume techniques. Changes in convective heat transfer and in effective axial heat conduction due to pulsation are investigated over broad ranges of the relevant parameters, i.e., the thickness of the porous layer and the frequency and amplitude of pulsation. The results obtained indicate that the effective axial thermal conductivity is substantially increased by pulsation, and this augmentation is more pronounced by partial fillings of porous material. This issue is of relevance to a host of thermal engineering applications, e.g., in geothermal reservoirs and Stirling engines.

• Sponsoring Organization: USDOE
• OSTI ID: 509307
• Journal Information: Numerical Heat Transfer. Part A, Applications, Journal Name: Numerical Heat Transfer. Part A, Applications Journal Issue: 5 Vol. 31; ISSN NHAAES; ISSN 1040-7782
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
33 ADVANCED PROPULSION SYSTEMS
ANNULAR SPACE
AUGMENTATION
FLUID FLOW
GEOTHERMAL SYSTEMS
HEAT TRANSFER
NUMERICAL ANALYSIS
NUMERICAL SOLUTION
POROUS MATERIALS
PULSATIONS
RESERVOIR ENGINEERING
STIRLING ENGINES
THERMAL CONDUCTIVITY
USES