Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
International Journal of Fluid Mechanics Research
ESCI SJR: 0.22 SNIP: 0.446 CiteScore™: 0.5

ISSN Imprimir: 2152-5102
ISSN En Línea: 2152-5110

Volumes:
Volumen 46, 2019 Volumen 45, 2018 Volumen 44, 2017 Volumen 43, 2016 Volumen 42, 2015 Volumen 41, 2014 Volumen 40, 2013 Volumen 39, 2012 Volumen 38, 2011 Volumen 37, 2010 Volumen 36, 2009 Volumen 35, 2008 Volumen 34, 2007 Volumen 33, 2006 Volumen 32, 2005 Volumen 31, 2004 Volumen 30, 2003 Volumen 29, 2002 Volumen 28, 2001 Volumen 27, 2000 Volumen 26, 1999 Volumen 25, 1998 Volumen 24, 1997 Volumen 23, 1996 Volumen 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v41.i2.20
pages 106-119

Effect of Inlet Diffuser Diameter on Flow Pattern and Efficiency of Squirrel Cage Fans with CFD Method

Mojtaba Gholamian
Department of Mechanical Engineering JNTUH, College of Engineering Hyderabad, India
Gurram Krishna Mohan Rao
Department of Mechanical Engineering JNTUH, College of Engineering Hyderabad, India
Panitapu Bhramara
Department of Mechanical Engineering JNTUH, College of Engineering Hyderabad, India
Specialized in Refrigeration and Air conditioning, Heat Transfer and Two Phase Flows
Dadollah Hajalian
Pardis Petrochemical Co., Pars Special Economic/Energy Zone Bushehr, Iran

SINOPSIS

Inlet is one the basic elements of squirrel cage fans that has a significant effect on fan performance and efficiency. Recently using the CFD calculation methods with sufficient related tools for finding the flow pattern and related parameters, applying modifications and representing proper solutions, has being increased. In the present study to study the effect of inlet diffuser diameter on the fan efficiency and flow pattern, using numerical simulations and experimental validations, three different inlet diffuser diameters are used as inlet instead of inlet nozzle. To simulate these cases some geometries with special additional element, proper mesh pattern and size and proper turbulence model was chosen. It is observed that diameter has a great influence on fan performance and efficiency, more than 14 % for 2 cm difference in diameter. Here performance and efficiency curves of fans with respect to use of inlet nozzle are more flattened with higher magnitude. So fan operation around the best performance point is more stable without significant fluctuation of head pressure and efficiency. Also, the patterns of static pressure, axial velocity, radial velocity and tangential velocity are captured to analyze the effect of inlet mechanism on flow pattern and efficiency.


Articles with similar content:

EFFECTS OF MERIDIONAL SHAPE ON HYDRAULIC AND SUCTION PERFORMANCE OF A HIGH SPECIFIC SPEED CENTRIFUGAL PUMP
3rd Thermal and Fluids Engineering Conference (TFEC), Vol.6, 2018, issue
Hyeon-Seok Shim, Kwang-Yong Kim
DESIGN AND ANALYSIS OF A DUCTED CONTRA-ROTATING AXIAL FLOW FAN
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2014, issue
Masoud Boroomand, Ali Mohammadi, Hamzeh Eshraghi
DEVELOPMENT AND NUMERICAL ANALYSIS TO VISUALISE THE FLOW PATTERN OF CRYOGENIC RADIAL TURBINE FOR HELIUM GAS
Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Vol.0, 2017, issue
R.K. Sahoo, Manoj Kumar
PERFORMANCE OPTIMIZATION OF CENTRIFUGAL PUMP HANDLING VISCOUS OIL BY MODIFICATION OF IMPELLER GEOMETRY
International Journal of Fluid Mechanics Research, Vol.44, 2017, issue 5
Mojtaba Tahani , Amir F. Najafi, Majid Najafpour, Sepehr Govara
Large Eddy Simulation of Flame Flashback by Combustion Induced Vortex Breakdown
TSFP DIGITAL LIBRARY ONLINE, Vol.9, 2015, issue
Eike Tangermann, Michael Pfitzner, Markus Klein