نتایج جستجو برای: constant heat and mass flux

تعداد نتایج: 16958372  

2010
Aaron FROESE Tomonori TAKIZUKA Masatoshi YAGI

Parallel heat flux in a steady-state SOL is determined via fully kinetic simulations using the 1d3v particle-in-cell code PARASOL. In order to better evaluate the heat load on the divertor plates, the ion and electron velocity distributions functions (VDF), heat flux, and heat flux limiters αi and αe are calculated. The effects of collisionality, recycling rate, ion-electron mass ratio, and sou...

Journal: :journal of computational and applied research in mechanial engineering - jcarme 0
l. ramamohan reddy department of mathematics, mekapati rajamohan reddy institute of technology and science, udayagiri, nellore district, a.p, india m. c. raju department of humanities and sciences, annamacharya institute of technology and sciences (autonomous), rajampet – 516126, a.p., india g. s. s. raju department of mathematics, jntua college of engineering pulivendula, pulivendula, a.p, india s. m. ibrahim department of mathematics, gitam university, vishakhaptanam, a.p. - 530045 india

the paper aims at investigating the effects of chemical reaction and thermal radiation on the steady two-dimensional laminar flow of viscous incompressible electrically conducting micropolar fluid past a stretching surface embedded in a non-darcian porous medium. the radiative heat flux is assumed to follow rosseland approximation. the governing equations of momentum, angular momentum, energy, ...

2002
G. G. Rooney P. F. Linden

NOTATION A 'Effective area' in Boussinesq ventilation model, see eqn (24) ,4 'Effective area' in non-Boussinesq ventilation model, see eqn (28) A I Area of floor covered by base of fire a Area of vent B Plume buoyancy flux b Plume radius c r Specific heat capacity at constant pressure D Diameter of fire source d Upper-layer depth F Scaled density deficit, a conserved quantity with units of buoy...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Matthew D Johnson Jens Völker Holly V Moeller Edward Laws Kenneth J Breslauer Paul G Falkowski

Using a high sensitivity differential scanning calorimeter in isothermal mode, we directly measured heat production in eukaryotic protists from 5 phyla spanning over 5 orders of magnitude in carbon biomass and 8 orders of magnitude in cell volume. Our results reveal that metabolic heat production normalized to cell mass is virtually constant in these organisms, with a median of 0.037 pW pg C(-1...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...

2010
L. Duan D. A. Levin

B = Einstein absorption coefficient E = total energy, P ns s s es 12 uiui , J=m g = electronic state degeneracy H = shape factor, = , dimensionless h = specific enthalpy, J=kg h = Planck’s constant h = enthalpy of formation, J=kg I = radiative intensity,W=cm-sr J = diffusive mass flux, kg=m s Le = Lewis number, dimensionless M = Mach number, dimensionless n = number density, m 3 p = pressure, P...

Journal: :فصلنامه علمی پژوهشی مهندسی مکانیک جامدات واحد خمینی شهر 0
mohammad hossaini assistant professor, department of mechanical engineering, sirjan university of technology, sirjan, iran meisam khaloei m.sc., department of mechanical engineering, sirjan branch, islamic azad university, sirjan, iran abbas zandi baghche maryam m.sc., department of mechanical engineering, sirjan university of technology, sirjan, iran

in this paper the numerical analysis of flow and time dependent heat transfer of micro-tube conveying nanofluid in laminar flow is investigated. in this study, convection heat transfer of nanofluid and base fluid and transient analysis for time-varying heat flux for time step of 0.0001 second are elucidated. it is observed that the pumping power of nanofluid flowing and the maximum temperature ...

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