Modeling of hydrodynamics and heat transfer in dilute liquid-solid upward flows through an annulus.

Download
2002
Erşahin, Senem

Suggestions

Modeling of radiative heat transfer in strongly forward scattering media of bubbling fluidized bed combustor with and without recycle
Şen, Özge; Külah, Görkem; Selçuk, Nevin; Department of Chemical Engineering (2017)
Predictive accuracy and CPU efficiency of geometric optics approximation (GOA) and scattering phase function simplifications in the freeboard of lignite-fired METU 0.3 MWt ABFBC Test Rig were tested by applying them to the modeling of radiative heat transfer and comparing their predictions against measurements and benchmark solutions. The freeboard was treated as 3-D rectangular enclosure containing grey, absorbing, emitting gas with grey, absorbing, emitting, non/isotropically/anisotropically scattering pa...
Modeling of dispersion in a polymeric chromatographic monolith
Koku, Harun; Schure, Mark R.; Lenhoff, Abraham M. (Elsevier BV, 2012-05-11)
Dispersion in a commercial polymeric monolith was simulated on a sample geometry obtained by direct imaging using high-resolution electron microscopy. A parallelized random walk algorithm, implemented using a velocity field obtained previously by the lattice-Boltzmann method, was used to model mass transfer. Both point particles and probes of finite size were studied. Dispersion simulations with point particles using periodic boundaries resulted in plate heights that varied almost linearly with flow rate, a...
Modeling of heat and mass transfer in microwave-infrared heating of zucchini
Yazıcıoğlu, Nalan; Şümnü, Servet Gülüm; Şahin, Serpil; Department of Food Engineering (2016)
The main objective of this study is to develop a finite element model to predict the variation of temperature and moisture content of zucchini during microwave-infrared heating. There is no information in literature about heating of zucchini by using this method. Heat and mass transfer in zucchini heated in microwave and infrared combination oven were modelled by Finite Element method. Microwave power was predicted by using the exact form of Lambert Law and calculating the electric field distribution by Max...
Modeling of the nonlinear behavior of steel framed structures with semi rigid connections
Sarıtaş, Afşin; Özel, Halil Fırat (null; 2015-07-21)
A mixed formulation frame finite element with internal semi-rigid connections is presented for the nonlinear analysis of steel structures. Proposed element provides accurate responses for spread of inelasticity along element length by monitoring the nonlinear responses of several crosssections, where spread of inelasticity over each section is captured with fiber discretization. Each material point on the section considers inelastic coupling between normal stress and shear stress. The formulation of the ele...
Modeling of asymmetric intermodulation distortion and memory effects of power amplifiers
Yüzer, Ahmet Hayrettin; Demir, Şimşek; Department of Electrical and Electronics Engineering (2011)
This dissertation is focused on developing a new passband behavioral model in order to account for asymmetric intermodulation distortion resulted from memory effect. First, a measurement setup is prepared to measure the AM/AM, AM/PM distortion, magnitudes and the phases of intermodulation (IMD) and fundamental (FUND) components which are created by the amplifier where phase is calculated only by measuring magnitudes. Then, responses of a sample amplifier are measured for different excitation situations (cen...
Citation Formats
S. Erşahin, “Modeling of hydrodynamics and heat transfer in dilute liquid-solid upward flows through an annulus.,” Middle East Technical University, 2002.