Results 51 to 60 of about 725,498 (217)

Annular flow enhanced two-phase evaporative heat exchanger for space-based systems [PDF]

open access: yes, 1991
The development of multi-kilowatt space-based systems requires the transport of waste heat loads over long distances in micro-gravity conditions. In this context two-phase heat transport systems are attractive enabling a high rate of heat transport ...
Nikanpour, D.
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Influence of spheroidal particle shape on particle size characterization by multi-wavelength light extinction method

open access: yesResults in Physics, 2018
In order to improve the applicability, spheroidal particles are substituted for the spherical particles in the traditional modeling of multi-wavelength light extinction method.
Yi Zhou   +4 more
doaj   +1 more source

Heat flow

open access: yesEos, Transactions American Geophysical Union, 1971
In the preceding few years both the number and quality of heat flow measurements have increased dramatically, and, except for the explosion aboard the Apollo 13 spacecraft, we might be able to report the first extraterrestrial heat‐flow measurement [see Langseth et al., 1970].Between 1965 and August 1969, the number of heat flow measurements increased ...
openaire   +1 more source

Single-phase flow and flow boiling of water in horizontal rectangular microchannels [PDF]

open access: yes, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel UniversityThe current study is part of a long term experimental project devoted to investigating single-phase flow pressure drop and heat transfer, flow boiling ...
Mirmanto
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Low heat flow from young oceanic lithosphere at the Middle America Trench off Mexico

open access: yes, 2005
Seismic reflection profiles across the Middle America Trench at 20°N show a high amplitude bottom simulating reflector interpreted as marking a phase transition between methane hydrate and free gas in the pore space of both accreted and trench sediments.
Bartolome, R.   +7 more
core   +1 more source

Research on Active Flow Control Method of NACA0012 Airfoil with Traveling Wave Structure [PDF]

open access: yesJournal of Applied Fluid Mechanics
Traveling wave is an innovative active flow control technique that can remarkably mitigate flow separation. This paper employs numerical simulation to examine how traveling wave structures affect the NACA0012 airfoil.
Q. Dai   +4 more
doaj   +1 more source

Diffeomorphisms and Nonlinear Heat Flows [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2005
We show that the gradient flow ${\mathbf u}$ on $L^2$ generated by the energy functional $I[{\mathbf u}] := \int_U \Phi(\det D{\mathbf u}) \, dx$ for vector-valued mappings is in some sense "integrable," meaning that (i) the inverse Jacobian $\beta := (\det D{\mathbf u})^{-1}$ satisfies a scalar nonlinear diffusion equation, and (ii) we can recover ...
L. C. Evans, O. Savin, Wilfrid Gangbo
openaire   +1 more source

Natural convection flow from an isothermal horizontal cylinder in presence of heat generation [PDF]

open access: yes, 2006
Natural convection laminar boundary layer flow from a horizontal circular cylinder with a uniform surface temperature at presence of heat generation has been investigated. The governing boundary layer equations are transformed into a non-dimensional form
Paul, MC   +5 more
core   +1 more source

Improved prediction of shell side heat transfer in horizontal evaporative shell and tube heat exchangers

open access: yes, 2008
This paper presents an improved prediction method for the heat transfer and pressure drop in the shell side of a horizontal shell and tube evaporator. The results from an experimental test program are used in which a wide range of evaporating two-phase ...
TUVNEL (Funder)   +10 more
core   +1 more source

Flow patterns and heat transfer for flow boiling in small to micro diameter tubes

open access: yes, 2008
An overview of the recent developments in the study of flow patterns and boiling heat transfer in small to micro diameter tubes is presented. The latest results of a long-term study of flow boiling of R134a in five vertical stainless steel tubes of ...
Karayiannis, TG   +3 more
core  

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