Inscrição na biblioteca: Guest
Início - ICHMT DL Ano atual Arquivos Comitê executivo Centro Internacional para Transferência de Calor e Massa

UNSTEADY HEAT TRANSFER ENHANCEMENT IN A 3-D RECTANGULAR DUCT USING SYNTHETIC JET ACTUATOR

DOI: 10.1615/ICHMT.2015.IntSympAdvComputHeatTransf.1680
pages 1724-1727

Mohammad Moshfeghi
Multi-Phenomena CFD Engineering Research Center, Baekbeomro 35, Mapo, Seoul, 121-742, Korea

Byung Ha Kang
School of Mechanical Systems Engineering, Kookmin University, Seoul, Korea

Jaisuk Yoo
Department of Mechanical Engineering, Ajou University, Suwon, Korea

Nahmkeon Hur
Multi-Phenomena CFD Engineering Research Center, Baekbeomro 35, Mapo, Seoul, 121-742, Korea; Department of Mechanical Engineering, Sogang University, Sinsoo 1, Mapo, Seoul 121-742, Korea

Resumo

Any mechanism for changing the mixing process and instability inside the boundary layer and the replacement of hot fluid adjacent to wall surface with cold fluid from bulk flow affects the heat transfer efficiency. Hence, synthetic jet actuators (SJAs) have become popular for heat transfer enhancement projects. In a SJA system, frequency of the injection is an important factor. This paper first studies the effects of frequency of the SJA on a heat transfer enhancement in a 3D rectangular duct. In another part, the effects of hybrid injection are also investigated. The unsteady CFD simulations are carried out using SST-k-ω turbulence model. The comparisons are presented in terms of turbulence intensity, streamline and temperature distribution.

ICHMT Digital Library

Bow shocks on a jet-like solid body shape. Thermal Sciences 2004, 2004. Pulsed, supersonic fuel jets - their characteristics and potential for improved diesel engine injection. PULSED, SUPERSONIC FUEL JETS - THEIR CHARACTERISTICS AND POTENTIAL FOR IMPROVED DIESEL ENGINE INJECTION
View of engine compartment components (left). Plots of temperature distributions in centreplane, forward of engine (right). CHT-04 - Advances in Computational Heat Transfer III, 2004. Devel... DEVELOPMENT AND CURRENT STATUS OF INDUSTRIAL THERMOFLUIDS CFD ANALYSIS
Pratt & Whitney's F-135 Joint Strike Fighter Engine under test in Florida is a 3600F class jet engine. TURBINE-09, 2009. Turbine airfoil leading edge stagnation aerodynamics and heat transfe... TURBINE AIRFOIL LEADING EDGE STAGNATION AERODYNAMICS AND HEAT TRANSFER - A REVIEW
Refractive index reconstructed field. (a) Second iteration. (b) Fourth iteration. Radiative Transfer - VI, 2010. Theoretical development for refractive index reconstruction from a radiative ... THEORETICAL DEVELOPMENT FOR REFRACTIVE INDEX RECONSTRUCTION FROM A RADIATIVE TRANSFER EQUATION-BASED ALGORITHM
Two inclusion test, four collimated sources. Radiative Transfer - VI, 2010. New developments in frequency domain optical tomography. Part II. Application with a L-BFGS associated to an inexa... NEW DEVELOPMENTS IN FREQUENCY DOMAIN OPTICAL TOMOGRAPHY. PART II. APPLICATION WITH A L-BFGS ASSOCIATED TO AN INEXACT LINE SEARCH