Turbinenkaskaden

Turbinenkaskaden, also known as turbine cascades, refers to a series of turbines arranged in sequence, where the outlet flow of one turbine serves as the inlet flow for the next. This arrangement is commonly employed in various engineering applications, particularly in fluid dynamics and power generation. The primary purpose of a turbinenkaskade is to extract energy from a fluid in a controlled and efficient manner.

In the context of turbomachinery, such as gas turbines or steam turbines, a turbinenkaskade is often composed of multiple stages. Each stage typically consists of a set of stationary guide vanes and a set of rotating blades. The guide vanes direct the flow onto the rotating blades at an optimal angle, initiating the transfer of energy from the fluid to the turbine rotor. As the fluid passes through each subsequent stage, its pressure and velocity are progressively reduced, resulting in a cumulative extraction of rotational kinetic energy.

The design of a turbinenkaskade is critical for maximizing efficiency and ensuring stable operation. Factors such as blade shape, airfoil profile, spacing between stages, and flow path geometry are carefully optimized. Computational fluid dynamics (CFD) is often used to simulate the complex flow patterns within a turbinenkaskade and to identify potential areas for improvement. The overall performance of a turbinenkaskade is measured by its efficiency, which represents the ratio of useful work output to the energy input from the fluid.