Stats

State Verified Answer
Replies 5
Subscribers 7
Views 3208
Members are here 0

Unsteady inlet boundary condition with OpenLabs

Hey, I have at my inlet three Boundary conditions that changes with time and the azimuth angle. Arctg (Vt/Vz), Absolute total pressure and the absolute temperature. In the Inlet of my domain, I import the profiles, that changes with the azimuth angle. Now I want to change these profiles with the time too and I need to use OpenLabs for. In the tutotorial of OpenLabs I saw a expression with a sine function ( tutorial 2: customized unsteady Inlet boundary condition), but I don't like to use that. Is it possible to use an array of values ?

For example my time step is 0.000011s. At an azimuth angle of 0 degree I have a total pressure of 1 Bar and the time is 0. At an azimuth angle of 90 degree a have a total pressure of 2 bar and the time is 0.000011s. At an azimuth angle of 180 degree I have a total pressure of 3 bar and the time is 0.000022s and so on, is that possible ? I don't like to use a function here for.

Iam simulating a stator..

greetings Hussein

Parents

0 Colinda over 2 years ago

Hi Hussein,

You could use a discrete expression in OpenLabs to define the total pressure and total temperature as a function of time and the azimuthal angle. Are you using OpenLabs in Fidelity or Fine Open? Which version are you using?

Best regards,
Colinda
Cancel
Vote Up +1 Vote Down

Sign in to reply

Verify Answer

Cancel

Reply

0 Colinda over 2 years ago

Hi Hussein,

You could use a discrete expression in OpenLabs to define the total pressure and total temperature as a function of time and the azimuthal angle. Are you using OpenLabs in Fidelity or Fine Open? Which version are you using?

Best regards,
Colinda
Cancel
Vote Up +1 Vote Down

Sign in to reply

Verify Answer

Cancel

Children

0 Dianliang over 2 years ago in reply to Colinda

Just to complete, you can search discrete expression on support.cadence.com to find the relevant documentation (Implicit and discrete expressions) for Fidelity or Fine Open.
Cancel
Vote Up +1 Vote Down

Sign in to reply

Verify Answer

Cancel
+1 sriluta over 2 years ago in reply to Colinda

Hey, thx for your response. I use now the functions of the fourier series, as functions of the time and the azimuth angle :), iam using openLabs in Omnis 5.2
Cancel
Vote Up +1 Vote Down

Sign in to reply

Reject Answer

Cancel
0 WS202504245114 4 months ago in reply to Dianliang

I couldn't find any information related to "discrete expression" on support.cadence.com.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 Dianliang 4 months ago in reply to WS202504245114

Did you log in the support portal? The first return of the search should be the answer.

Alternatively, you can go to Product Manuals -> Silicon-Package-Board Co-Design -> Computational Fluid Dynamics -> Fidelity 2024.2 -> Setting up a simulation -> Optional models -> OpenLabs -> OpenLabs language -> Implicit and discrete expressions
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel

Cadence Guidelines

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.