Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Numerical Investigation on the Crucible Discharge of Steel and Slag During the Aluminothermic Welding Process

Weiss S., Riehl I., Hantusch J., Gross U.

Archives of Metallurgy and Materials

2018

Vol. 63, iss. 1

173--180

The aluminothermic reaction is a type of self-propagating high-temperature synthesis to produce high quality metals and metal oxides en route. The main use of the aluminothermic reaction is in the field of railway welding. The multiphase flow of steel, slag and air in differently shaped crucibles has been numerically investigated in this work with the volume-of-fluid method. The simulations were carried out with the multiphase solver of the open source toolbox OpenFOAM. To validate the numerical results of the three-dimensional simulations, an experiment was carried out to investigate the discharge of a water-oil system from the crucible. A comparison to a numerical 3D simulation showed reasonable accurate results. It can be said that the solver is capable of predicting the point of the oil penetration of the water phase in the experiment.

Application of Some Electrode Systems for Local Measurements with Conduct-Metrical Method

Iljins U., Skujans J., Ziemelis I., Gross U.

Przegląd Elektrotechniczny

2008

R. 84, nr 11

193-196

Theoretical and experimental investigation of the use of electric measuring possibilities for foam gypsum local moisture measuring has been carried out. It is stated that conduct-metrical (resistance) measurements are acceptable for samples of foam gypsum with moisture content above 15 %.

Przedstawiono badania teoretyczne I doświadczalne nad możliwością użycia elektrycznego systemu pomiarowego do określenia wilgotności pianki gipsowej. Stwierdzono, że przewodnościowe (rezystancyjne) pomiary są dopuszczalne dla próbek pianki gipsowej o wilgotności powyżej 15 %.