For the past few weeks, the ANSYS blog has published many posts and ANSYS has held a number of webinars describing the advantages that ANSYS 17.0 provides for turbomachinery simulation. In the following, I will review these events and provide my summary of 10 (out of many more) exciting developments:
- A focus on HPC delivers significant speedups and ability to handle larger models, for both CFD and mechanical simulation.
- A new mechanical model simulates journal bearings, additionally providing important inputs of stiffness and damping for rotordynamics simulation.
- Fracture analysis is faster and easier with arbitrary crack surface definition and post-processing.
Prediction of blade row performance and aeromechanics is important to turbomachinery development because turbomachinery blading lies at the heart of all types of turbomachines: pumps, fans, compressors, turbines etc. Improving the aerodynamic (or hydrodynamic) and structural aspects of the blading is essential to meeting modern requirements for performance and durability. If we consider that the fluid mechanics primarily influences performance, including fuel efficiency, then the structural mechanics is more responsible for durability. But of course, the two are closely related, and that is particularly true as the operating temperature increases, as in the hot section of modern gas turbines. Most end users do not want to sacrifice durability for energy efficiency, but rather demand both. Continue reading