Abstract: Heat transfer and aerodynamic performance in worn squealer tip gap of a high-pressure gas turbine stage were numerically investigated. Effects of the starting location of wear and wear depth on tip heat transfer coefficient ...

Abstract: Effects of non-axisymmetric endwall profiling on total pressure loss, heat transfer, and film cooling effectiveness of a transonic rotor blade were numerically investigated. The numerical methods, including the turbulence ...

Abstract: The wear characteristics of the trapezoidal fin against high-speed rotor were experimentally investigated at different final incursion depths, incursion rates, and sliding velocities. To characterize the geometrical effect, ...

Abstract: This study reports an experimental work on friction contact between the chamfered labyrinth fin and high speed rotor at different incursion rates, final incursion depths, and sliding velocities. The small (original design ...

Abstract: The rotordynamic characteristic of the holepattern seals with two different holediameters was investigated using the unsteady Reynoldsaveraged Navier–Stokes (URANS) equations solutions and bulk flow methods. The mesh ...

Abstract: The improvement in rotordynamic performance of the annular gas seal requires efficient and accurate prediction methods of rotordynamic coefficients. Although the existed transient computational fluid dynamics (CFD) methods ...

Abstract: The rectangular vortex generator pairs (RVGPs) are arranged upstream of the film cooling holes to achieve better coolant coverage on the endwall near the pressure-side corner area. The endwall film cooling effectiveness ...

Abstract: The finite element analysis (FEA) and computational fluid dynamics (CFD) methods are utilized to investigate the leakage performance degradations in two kinds of flexible seals (i.e., forward bending and backward bending) ...