000			02135nam a2200253 a 4500
001			vtls000068792
003			KUKTEM
005			20251114204419.0
008			130304t2012 my da f m 000 0 eng d
020			_aTHE0004205(Local)
039		9	_a201905152026 _bfarhana _y201303041202 _zFida
040			_aUMP
090			_aTP157 .N67 2012 rs Bc.
100	0		_aNorleen Isa
245	1	0	_aComputational fluid dynamics of advanced gas dispersion: deep hollow blade turbine / _cNorleen Isa
260			_aKuantan, Pahang : _bUMP, _c2012
300			_axiii, 47 p. : _bill. (some col.) ; _c30 cm. + _e1 CD-ROM
502			_aProject paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang - 2012
504			_aBibliography: p. 45-47
520	3		_aStirred tanks are widely used in the chemical and biochemical process industries. Mixing, fermentation, polymerization, crystallization and liquid-liquid extractions are significant examples of industrial operations usually carried out in tanks agitated by one or more impellers. The flow phenomena inside the tank are of great importance in the design, scale-up and optimization of tasks performed by stirred tanks. This work presents of a stirred tank agitated by an advanced gas dispersion impeller namely deep hollow blade turbine (HEDT) using Computational Fluid Dynamic (CFD) method. The standard k-ε, realizable k-ε and shear-stress transport k-ɷ were considered in this study for comparison purposes. Predictions of the impeller-angle-resolved and time-averaged turbulent flow have been evaluated and compared with data from Particle Image Velocimetry (PIV) measurements. Multiple Reference Frame (MRF) used to capture flow features in details and predicts flow for steady state for the impeller blades relative to the tank baffles. Unsteady solver indeed predicts periodic shedding, and leads to much better concurrence with available experimental data than has been achieve with steady computation.
650		0	_aChemical reactors
650		0	_aGas-liquid interfaces
999			_aVIRTUA40 _c1634 _d1640
999			_aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*6501*9992