Turbomachinery

Optimizing the design of rotating machinery such as compressors, turbines, pumps, fans, blowers, turbochargers and turbopumps offers enormous potential. Each 1 percent increase in efficiency, for example, could save $66 billion in the gas-powered electrical industry or $30 billion in air transport over 15 years.

But efficiency is only one of your turbomachinery design challenges. You are also charged with performance improvements related to safety, operating range, reliability, initial and operating costs, time to market, etc. Now that you’ve achieved the “easy” gains, it’s time to jump to the next level. You need a solution that allows you to build, test and verify your enhanced systems in a cost-effective, low-risk virtual world — before you’ve invested in prototypes and physical testing.

ANSYS CFX Harmonic Analysis visualized in EnSight

Accurate simulation of rotating machinery will help you to evaluate alternative design iterations more quickly. As a result, you’ll increase efficiency, reliability and durability, while reducing emissions in your competitive, time-critical environment. Rotating machinery is a critical CFD app that you must get right.

Read the application brief: Rotating Machinery: A Critical CFD App You Have to Get Right

Recent Advances

Harmonic analysis for 100X faster results
Previously, to optimize performance, the flow for every turbomachinery blade in every row had to be painstakingly calculated — a prohibitively expensive undertaking. Now you can use harmonic analysis to solve these time-intensive problems in the frequency domain. By calculating as few as one blade per row, you can obtain a full wheel solution up to 100X faster — with significant reductions in hardware requirements. Harmonic analysis is not an approximation: The results match the full wheel solution. Recently added capabilities include PT-TRS, equal pitch, FT-Inlet disturbance and conjugate heat transfer.

Simulating flutter for complex mode shapes
Now you can apply complex vibrational modes from a cyclic modal analysis to CFX flutter analysis. This reduces the problem size and time-to-convergence for simulations of centrifugal compressors and other radial turbomachinery that have blades connected by a relatively thin hub at the outer radius. This newly added capability captures hub section movement that can complicate the movement of the blades. These problems can be solved using Fourier transform or harmonic analysis.

Watch Video     Application Brief

Turbomachinery Simulation