Recent developments on the automation of the X-rays approach to hole-cutting in overset grids is further improved. A fast method to compute an auxiliary wall-distance function used in providing a first estimate of the hole boundary location is introduced. Subsequent iterations lead to automatically-created hole boundaries with a spatially-variable offset from the minimum hole. For each hole bou...

in this paper high order multidimensional positive definite advection transport algorithm (mpdata) and compact finite difference methods are applied to one (1-d) and two-dimensional (2-d) advection equation. mpdata methods are designed based on upwind scheme using anti-diffusive velocity that compensates diffusivity of upwind method. in high order compact method one implicit relation between a ...

Ship manoeuvrability is closely related to the safety of ship operation in a real seaway; therefore predicting ship's manoeuvring characteristics great importance. However, estimating performance waves challenging because complex fluid-structure interactions between hull, rudder, propeller and waves. Traditional methods for study waves, based on mathematical models combined with potential flow ...

We derive entropy conserving and dissipative overlapping domain formulations for systems of nonlinear hyperbolic equations in conservation form, such as would be approximated by overset mesh methods. The formulation imposes two-way coupling at the artificial interface boundaries through penalty functions that vanish when solutions coincide. are expressed terms fluxes originally introduced finit...