**Commenced**in January 2007

**Frequency:**Monthly

**Edition:**International

**Paper Count:**4906

# Search results for: transient natural convection

##### 4906 Analyses of Natural Convection Heat Transfer from a Heated Cylinder Mounted in Vertical Duct

**Authors:**
H. Bhowmik,
A. Faisal,
Ahmed Al Yaarubi,
Nabil Al Alawi

**Abstract:**

^{2}to 2426 W/m

^{2}and the Rayleigh number ranges from 1×10

^{4}to 4.35×10

^{4}. For natural air flow and constant heat flux condition, the effects of heat transfer around the cylinder under steady-state condition are investigated. The steady-state results compare favorably with that of the available data. The effects of transient heat transfer data on different angular position of the thermocouple (0

^{o}, 90

^{o}, 180

^{o}) are also reported. It is observed that the transient heat transfer around the cylinder is strongly affected by the position of thermocouples. In the transient region, the rate of heat transfer obtained at 90

^{o}and 180

^{o}are higher than that of stagnation point (0

^{o}). Finally, the dependence of the average Nusselt number on Rayleigh number for steady and transient natural convection heat transfer are analyzed, and a correlation equation is presented.

**Keywords:**
Fourier number,
Nusselt number,
Rayleigh number,
steady state,
transient

##### 4905 Numerical Solution of Transient Natural Convection in Vertical Heated Rectangular Channel between Two Vertical Parallel MTR-Type Fuel Plates

**Authors:**
Djalal Hamed

**Abstract:**

**Keywords:**
buoyancy force,
friction force,
finite volume method,
transient natural convection

##### 4904 Unsteady and Steady State in Natural Convection

**Authors:**
Syukri Himran,
Erwin Eka Putra,
Nanang Roni

**Abstract:**

**Keywords:**
natural convection,
vertical plate,
velocity and temperature profiles,
steady and unsteady

##### 4903 Transient Free Laminar Convection in the Vicinity of a Thermal Conductive Vertical Plate

**Authors:**
Anna Bykalyuk,
Frédéric Kuznik,
Kévyn Johannes

**Abstract:**

**Keywords:**
CFD modeling,
natural convection,
thermal conductive plate,
time-depending boundary conditions

##### 4902 Numerical Analysis of the Effects of Transpiration on Transient/Steady Natural Convection Flow of Reactive Viscous Fluid in a Vertical Channel Formed by Two Vertical Porous Plates

**Authors:**
Ahmad K. Samaila,
Basant K. Jha

**Abstract:**

**Keywords:**
transpiration,
reactive viscous fluid,
porous plates,
natural convection,
suction/injection

##### 4901 Study of Natural Convection in Storage Tank of LNG

**Authors:**
Hariti Rafika,
Fekih Malika,
Saighi Mohamed

**Abstract:**

**Keywords:**
numerical simulation,
natural convection,
heat gains,
storage tank,
liquefied natural gas

##### 4900 Combined Surface Tension and Natural Convection of Nanofluids in a Square Open Cavity

**Authors:**
Habibis Saleh,
Ishak Hashim

**Abstract:**

**Keywords:**
natural convection,
marangoni convection,
nanofluids,
square open cavity

##### 4899 Study of Heat Transfer by Natural Convection in Overhead Storage Tank of LNG

**Authors:**
Hariti Rafika,
Fekih Malika,
Saighi Mohamed

**Abstract:**

**Keywords:**
numerical simulation,
natural convection,
heat gains,
storage tank,
liquefied natural gas

##### 4898 Numerical Modeling of Turbulent Natural Convection in a Square Cavity

**Authors:**
Mohammadreza Sedighi,
Mohammad Said Saidi,
Hesamoddin Salarian

**Abstract:**

**Keywords:**
Buoyancy,
Cavity,
CFD,
Heat Transfer,
Natural Convection,
Turbulence

##### 4897 Numerical Analysis of Multiplicity and Transition Phenomena in Natural Convection

**Authors:**
Hadi Kafil,
Ali Ecder

**Abstract:**

**Keywords:**
natural convection,
partial heated,
onset of bifurcation,
Rayleigh number

##### 4896 Transient/Steady Natural Convective Flow of Reactive Viscous Fluid in Vertical Porous Pipe

**Authors:**
Ahmad K. Samaila,
Basant K. Jha

**Abstract:**

**Keywords:**
porous pipe,
reactive viscous fluid,
transient natural-convective flow,
analytical solution

##### 4895 Coupling Heat Transfer by Natural Convection and Thermal Radiation in a Storage Tank of LNG

**Authors:**
R. Hariti,
M. Saighi,
H. Saidani-Scott

**Abstract:**

**Keywords:**
tank,
storage,
liquefied natural gas,
natural convection,
thermal radiation,
numerical simulation

##### 4894 Effects of Roughness Elements on Heat Transfer During Natural Convection

**Abstract:**

**Keywords:**
natural convection,
Rayleigh number,
surface roughness,
Nusselt number,
Lattice Boltzmann method

##### 4893 Double Diffusive Natural Convection in Horizontal Elliptical Annulus Containing a Fluid-Saturated Porous Medium: Effects of Lewis Number

**Authors:**
Hichem Boulechfar,
Mahfoud Djezzar

**Abstract:**

**Keywords:**
double diffusive,
natural convection,
porous media,
elliptical annulus

##### 4892 Free Convection in a Darcy Thermally Stratified Porous Medium That Embeds a Vertical Wall of Constant Heat Flux and Concentration

**Authors:**
Maria Neagu

**Abstract:**

**Keywords:**
finite difference method,
natural convection,
porous medium,
scale analysis,
thermal stratification

##### 4891 Thermomagnetic Convection of a Ferrofluid in a Non-Uniform Magnetic Field Induced a Current Carrying Wire

**Authors:**
Ashkan Vatani,
Peter Woodfield,
Nam-Trung Nguyen,
Dzung Dao

**Abstract:**

**Keywords:**
cooling,
ferrofluid,
thermomagnetic convection,
magnetic field

##### 4890 Three-Dimensional Unsteady Natural Convection and Entropy Generation in an Inclined Cubical Trapezoidal Cavity Subjected to Uniformly Heated Bottom Wall

**Authors:**
Farshid Fathinia

**Abstract:**

**Keywords:**
transient natural convection,
trapezoidal cavity,
three-dimensional flow,
entropy generation,
second law

##### 4889 Steady State Natural Convection in Vertical Heated Rectangular Channel between Two Vertical Parallel MTR-Type Fuel Plates

**Authors:**
Djalal Hamed

**Abstract:**

**Keywords:**
buoyancy force,
friction force,
natural convection,
thermal hydraulic analysis,
vertical heated rectangular channel

##### 4888 Natural Convection of a Nanofluid in a Conical Container

**Authors:**
Brahim Mahfoud,
Ali Bendjaghlouli

**Abstract:**

**Keywords:**
heat source,
truncated cone,
nanofluid,
natural convection

##### 4887 Numerical Investigation of Natural Convection of Pine, Olive and Orange Leaves

**Authors:**
Ali Reza Tahavvor,
Saeed Hosseini,
Nazli Jowkar,
Behnam Amiri

**Abstract:**

**Keywords:**
computational fluid dynamic,
heat flux,
heat transfer,
natural convection

##### 4886 A Study of Learning Achievement for Heat Transfer by Using Experimental Sets of Convection with the Predict-Observe-Explain Teaching Technique

**Authors:**
Wanlapa Boonsod,
Nisachon Yangprasong,
Udomsak Kitthawee

**Abstract:**

**Keywords:**
convection,
heat transfer,
physics education,
POE

##### 4885 Entropy Generation Analyze Due to the Steady Natural Convection of Newtonian Fluid in a Square Enclosure

**Authors:**
T. T. Naas,
Y. Lasbet,
C. Kezrane

**Abstract:**

**Keywords:**
natural convection in enclosure,
inclined enclosure,
Nusselt number,
entropy generation analyze

##### 4884 Induced Thermo-Osmotic Convection for Heat and Mass Transfer

**Authors:**
Francisco J. Arias

**Abstract:**

**Keywords:**
natural convection,
thermal gradient,
solubility,
osmotic pressure

##### 4883 Numerical Study of Natural Convection in a Triangular Enclosure as an Attic for Different Geometries and Boundary Conditions

**Authors:**
H. Golchoobian,
S. Saedodin,
M. H. Taheri,
A. Sarafraz

**Abstract:**

**Keywords:**
enclosure,
natural convection,
numerical solution,
Nusselt number,
triangular

##### 4882 Numerical Study of Natural Convection Heat Transfer in a Two-Dimensional Vertical Conical PartiallyAnnular Space

**Authors:**
Belkacem Ould Said,
Nourddine Retiel,
Abdelilah Benazza,
Mohamed Aichouni

**Abstract:**

**Keywords:**
natural convection,
heat transfer,
numerical simulation,
conical partially,
annular space

##### 4881 Numerical Investigation of Hot Oil Velocity Effect on Force Heat Convection and Impact of Wind Velocity on Convection Heat Transfer in Receiver Tube of Parabolic Trough Collector System

**Authors:**
O. Afshar

**Abstract:**

**Keywords:**
receiver tube,
heat convection,
heat conduction,
Nusselt number

##### 4880 Natural Convection in Wavy-Wall Cavities Filled with Power-Law Fluid

**Authors:**
Cha’o-Kuang Chen,
Ching-Chang Cho

**Abstract:**

**Keywords:**
non-Newtonian fluid,
power-law fluid,
natural convection,
heat transfer enhancement,
cavity,
wavy wall

##### 4879 Numerical Study of Natural Convection Heat Transfer Performance in an Inclined Cavity: Nanofluid and Random Temperature

**Authors:**
Hicham Salhi,
Mohamed Si-Ameur,
Nadjib Chafai

**Abstract:**

**Keywords:**
nanofluid,
natural convection,
inclined cavity,
random temperature,
finite-volume

##### 4878 Entropy Generation of Natural Convection Heat Transfer in a Square Cavity Using Al2O3-Water Nanofluid

**Authors:**
M. Alipanah,
A. Ranjbar,
E. Farnad,
F. Alipanah

**Abstract:**

**Keywords:**
entropy generation,
natural convection,
bejan number,
nuselt number,
nanofluid

##### 4877 Numerical Study on the Urea Melting and Induced Natural Convection in a Urea Sender Module

**Authors:**
Doo Ki Lee,
Man Young Kim

**Abstract:**

**Keywords:**
urea solution,
melting,
heat conduction,
natural convection,
liquid fraction,
phase change