A Simple Intermolecular Model Used to Study Interfaces

Flachsbart and Anliker (1) used a simple molecular model to study the effect of gravity on the contact angle and the interface shape. Here, the problem is extended by considering the solid body rotation of a constant volume liquid in a pan. The effect of the centrifugal body force is included in an attempt to study dynamic effects on the contact angle. It was found, that the contact angle is not dependent upon the included body forces as far as the order of approximation of the analysis is concerned. The microscopic structure of the gas-liquid interface, which is involved in the problem considered, the structure of the surface tension and the contact angle are presented.

Peranan Universitas Dalam Pemindahan Teknologi Untuk Pembangunan

17 hal.: 28 c

Pembinaan Kelompok Kreatif Sebagai Struktur-mikro Bagi Penelitian Dan Pengembangan Di Itb

107 hlm., tab., 24 c

TRANSPOR DAN KONVERSI ENERGI NANOSKALA

25 cm ; xxiv ; 535 ha

Pengering gabah

+73hlm.;29c

Transpor Dan Konversi Energi Nanoskala:Sebuah Perlakuan paralel Terhadap berbagai Elektron Molekul Phonon Dan Photon

xxiv,535 hal,;ill,;25 c

Transpor dan Konversi Energi Nanoskala

xxv,535 hal,;ill,25c

Correlations for heat dissipation and natural convection heat-transfer from horizontally-based, vertically-finned arrays

Experimental data for heat dissipation from five duralumin vertical rectangular fin-arrays with the base horizontally oriented were measured. These measurements were to extend data obtained earlier from aluminum fin-arrays using the same experimental system and method. Data collated from earlier and present work covered the range of inter-fin separation distances from 6.25 to 7.95 mm. The range of the fin base excess temperature above the ambient air temperature, however, was quite extensive, from 19.0±0.1°C to 125.0±0.1°C. The fin length range was from 127 to 254 mm, the height from 6.35 to 38.10 mm, the thickness from 1.02 to 3.10 mm and the number of fins per array from 10 to 33. Relevant non-dimensional parameters formulated by earlier similarity analyses were used to generalize the data. Two types of correlations, one which used the inter-fin separation distance as the prime geometric parameter, and the other, which used half of the fin length, were presented and deviations discussed.

Termodinamika Teknik

xii, 625 hl