July 31, 2020 at 1:54 pmprajputAnsys EmployeeI see plots for acoustic analysis reporting St instead of the frequency. Why they use that?
July 31, 2020 at 1:54 pmKeyur KanadeAnsys Employee
St is the Strouhal number. It represents a non-dimensional frequency and is defined as:
St = fL/U
f is the frequency
L is the characteristic length
U is the characteristic velocity
This number is typically used in acoustics to perform non-dimensional analyses and comparison.
July 31, 2020 at 1:54 pmKarthik RAdministratorEssentially, experiments use often scaled models and because of that the emitted sound frequency are not the same as they would be in the real model. For this reason using the Strouhal number they can scale the frequency with the characteristic length and predict what would happen in the real size model.
- You must be logged in to reply to this topic.
Simulation World 2022
Check out more than 70 different sessions now available on demand. Get inspired as you hear from visionary companies, leading researchers and educators from around the globe on a variety of topics from life-saving improvements in healthcare, to bold new realities of space travel. Take a leap of certainty and check out a session today here.
Earth Rescue – An Ansys Online Series
The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.
Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.
- Suppress Fluent to open with GUI while performing in journal file
- Heat transfer coefficient
- What are the differences between CFX and Fluent?
- Floating point exception in Fluent
- The solver failed with a non-zero exit code of : 2
- Difference between K-epsilon and K-omega Turbulence Model
- Getting graph and tabular data from result in workbench mechanical
- Time Step Size and Courant Number
- Mesh Interfaces in ANSYS FLUENT
- error in cfd post
© 2022 Copyright ANSYS, Inc. All rights reserved.