September 6, 2019 at 1:39 pmnaadaSubscriberHey
Can someone please write me the Navier stokes equations for both models of incompressible ideal gas and ideal gas so I can understand the difference?.
September 6, 2019 at 2:31 pmDrAmineAnsys Employee
Why you need the NS for that? Ideal Gas EOS density=actual pressure/(Gas Constant*Actual Temperature), incompressible ideal gas density=p_op/(Gas Constant*Actual Temperature.)
What is the problem you are facing?
September 6, 2019 at 2:43 pmnaadaSubscriberI read in one of the websites that in the ideal gas case energy and momentum are coupled but in case of incompressible ideal gas they are not how this can be possible in case of natural convection?. Like what is the effect of choosing incompressible ideal gas over ideal gas?.
September 9, 2019 at 5:28 amDrAmineAnsys EmployeeIncompressible ideal gas is to account for weak compressible gases where temperature dependency is important. Ideal gas is for compressible gases and acciubt for temperature and pressure dependency.
Enclosed heated cavity: you get mass defect if use incompressible ideal gas as pressure ruse due to heating won't be felt in the density calculation
- You must be logged in to reply to this topic.
Boost Ansys Fluent Simulations with AWS
Computational Fluid Dynamics (CFD) helps engineers design products in which the flow of fluid components is a significant challenge. These different use cases often require large complex models to solve on a traditional workstation. Click here to join this event to learn how to leverage Ansys Fluids on the cloud, thanks to Ansys Gateway powered by AWS.
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
- Floating point exception in Fluent
- What are the differences between CFX and Fluent?
- Heat transfer coefficient
- Getting graph and tabular data from result in workbench mechanical
- The solver failed with a non-zero exit code of : 2
- Difference between K-epsilon and K-omega Turbulence Model
- Time Step Size and Courant Number
- Mesh Interfaces in ANSYS FLUENT
- error in cfd post
© 2023 Copyright ANSYS, Inc. All rights reserved.