THERMAL FLUID FLOW TRANSPORT PHENOMENA IN NANOFLUID JET ARRAY IMPINGEMENT

2015 ◽  
Vol 22 (1-3) ◽  
pp. 59-79 ◽  
Author(s):  
Caner Senkal ◽  
Shuichi Torii
Keyword(s):  
Fluid Flow ◽  
Transport Phenomena ◽  
Flow Transport ◽  
Thermal Fluid Flow ◽  
Jet Array

Thermal Fluid Flow Transport Phenomenon Over Vertical Slot-Perforated Flat Fins With Heat Sink in Natural Convection Environment

2005 ◽  
Author(s):  
Shuichi Torii ◽  
Wen-Jei Yang ◽  
Naoko Iino
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Natural Convection ◽  
Rayleigh Number ◽  
Heat Sink ◽  
Heat Transfer Performance ◽  
Transfer Performance ◽  
Vertical Slot ◽  
Flow Transport ◽  
Thermal Fluid Flow

A theoretical study is performed to investigate unsteady thermal and fluid flow transport phenomena over vertical slot-perforated flat fins with heat sink, which are placed in a natural convection environment. Emphasis is placed on the effects of Rayleigh number and fin pitch on heat transfer performance and velocity and thermal fields. It is found from the study that (i) in the high Rayleigh number region, the alternating changes in the fluid flow take place for larger fin pitch, (ii) the alternating flow in the space area between two fins is mutually interacted by the corresponding one from the adjacent in-line plate fines, resulting in an amplification of heat transfer performance, and (iii) heat-transfer performance is intensified with an increase in the fin pitch, whose trend becomes larger in the higher Rayleigh number region considered here.

scholarly journals Thermal Fluid Flow Transport Phenomenon over Twin Diamond-Shaped Cylinders in Free Stream

2009 ◽  
Vol 29-1 (2) ◽  
pp. 1119-1119
Author(s):  
Shuichi TORII ◽  
Yusaku NONAKA ◽  
Yasushi KOITO ◽  
Toshio TOMIMURA
Keyword(s):  
Transport Phenomenon ◽  
Fluid Flow ◽  
Free Stream ◽  
Flow Transport ◽  
Thermal Fluid Flow

Turbulent Thermal Fluid Flow Transport Phenomena of Aqueous Suspensions of Nano-Particles

2009 ◽  
Author(s):  
Shuichi Torii
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Pressure Loss ◽  
Volume Fraction ◽  
Nano Particles ◽  
Turbulent Heat Transfer ◽  
Working Fluid ◽  
Turbulent Heat ◽  
Flow Transport ◽  
Thermal Fluid Flow

The aim of the present study is to investigate the thermal fluid flow transport phenomenon of nanofluids in the heated horizontal circular tube. Consideration is given to the effects of volume fraction of the nanoparticle and Reynolds number on the turbulent heat transfer and pressure loss. Diamond, alumina (Al2O3) and oxide copper (CuO) are employed here as nanoparticles. It is found that (i) the viscosity of nanofluids increases with an increase in the volume fraction of nanoparticles dispersed in the working fluid, (ii) the pressure loss of nanofluids increases slightly in comparison with that of pure fluid and (iii) enhancement heat transfer performance is caused by suspending nanoparticles except for the case of large particle aggregation.

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