Investigation on band segregate formation during the electroslag remelting of H13 die steel

Band segregation has been found in the H13 die steel produced by the electroslag remelting (ESR) technology. Chemical and metallographic studies have been carried out on a one ton ESR ingot of H13 die steel, so as to understand the formation mechanism of the band segregation. The results indicate that the T.O content and S content decreased...

Numerical study on added resistance of ships by using a time-domain Rankine panel method

On technical issues in the analysis of nonlinear ship motion and structural loads in waves by a time-domain Rankine panel method

Numerical modeling for the accurate computations of arc-heater flows

The purpose of this paper is to develop an accurate analysis code for the flow of arc-heater by employing advanced numerical models. Governing equations are hyperbolic-type axisymmetric Navier-Stokes equations which include joule heating by arc, radiation and turbulent transport effect. Joule heating is simply calculated by Ohm’s law with the...