نتایج جستجو برای: heat flow

تعداد نتایج: 660962  

2003
E. NORBERT SMITH

SMITN, E. NORBERT. Cutaneous heat fZow during heating and cooZing in Alligator mississipiensis. Am. J. Physiol. 230(S): 12054210. 1976. -Direct in vivo measurement of heat flow across the skin of the American alligator (AlZigator mississipiensis) showed increased heat flow during warming. Mean values at 25OC during warming (15-35°C) in air (airspeed 300 cm/s) were 17.9 t 1.2 SE Cal/cm” per h (m...

Journal: :international journal of advanced design and manufacturing technology 0
mohsen ghazikhani emad noorifar ali mohammadian

in this paper the effect of block shape vortex generators (vgs) on an air-water fin-tube heat exchanger has been studied experimentally using exergy analysis method. also the effect of these vgs on increasing heat transfer rate has been simulated numerically and the results show a good agreement with the experiments. in this research we used a wind tunnel to produce wind flow over heat exchange...

2013
Ting-Yu Lin Satish G. Kandlikar

Experiments were conducted to investigate local heat transfer coefficients and flow characteristics of air flow in a 962 lm inner diameter stainless steel microtube (minichannel). The effects of heat loss, axial heat conduction and viscous heating were systematically analyzed. Heat losses during the experiments with gas flow in small diameter tubes vary considerably along the flow length, causi...

A. Hakiminejad H. Maddah R. Aghayari S. Sarli Z. Sharifnezhad

Nanofluid is a new class of heat transfer fluids engineered by dispersing metallic or non-metallic nanoparticles with a typical size of less than 100 nm in the conventional heat transfer fluids.This article aims to investigate the overall and convection heat transfer coefficient and Nusselt number of Al2O3-water nanofluid flowing in a horizontal double pipe heat exchanger under turbulent flow (...

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
مرتضی عنبرسوز حمید نیازمند

high temperatures are often encountered in almost all of the combustion systems, therefore, thermal radiation heat transfer can influence the droplets heat up rate and consequently their life time. in this paper, the effect of thermal radiation heat transfer is investigated for two cases of directional and spherically symmetric illuminations. the flow and temperature fields insdie and outside o...

2000
N. D. Rosenberg

Large-scale, lateral fluid flow through oceanic crust provides an explanation for regionally low heat flow in several seafloor settings. A well-mixed aquifer (WMA) model provides a quantitative and conceptual tool for explaining anomalously low heat flow based on an analytical representation of fluid and heat flow, assuming lateral fluid flow in basement in a layer directly below the ocean sedi...

2003
G. J. Veeder D. L. Matson T. V. Johnson A. G. Davies

Introduction: Recently, Galileo spacecraft data have revealed Io’s polar regions to be much warmer than previously expected. This unexpected development came from Photo-Polarimeter Radiometer (PPR) data which show that the minimum night temperatures are in the range of 90-95 K virtually everywhere on Io [1-4]. The minimum night temperatures show no dependence upon latitude and, when away from t...

This research study presents a numerical study on forced convection heat transfer of an aqueous ferrofluid passing through a circular copper tube in the presence of an alternating magnetic field. The flow passes through the tube under a uniform heat flux and laminar flow conditions. The primary objective was to intensify the particle migration and disturbance of the boundary layer by utilizing ...

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