On-Demand Webinar - Modeling Unsteadiness with the Non-Linear Harmonic Method

Learn Why Unsteadiness Is Important in Turbomachinery and How to Model It with High Accuracy

Unsteady flow is highly complex and causes some of the most typical challenges that turbomachinery engineers need to tackle to optimize their designs: high levels of noise, low efficiency, vibration, and increased fuel consumption. 

CFD analysis enables engineers to predict rotating machinery performance on all these levels, taking into account the many physics that influence the flow. They can test many design alternatives to reach optimum results long before creating the first prototype.

Traditional time-domain, unsteady CFD methods can simulate all the necessary physics to predict performance accurately. However, they are usually too expensive to integrate fully into the product design phase. That is why Cadence's Nonlinear Harmonic method (NLH), integrated into Fidelity CFD, is an excellent alternative to these conventional approaches by providing high-accuracy results at a fraction of its computational cost.

This webinar will cover the basics of the NLH method applied to turbomachinery unsteady flows, presented in an easy-to-digest format. We will outline how the principle characteristics of flow periodicity are used as a tool for achieving from 100 to 1000 times faster simulations compared to full-unsteady methods. And we will demonstrate the accuracy and effectiveness of NLH through various test cases.