Embedding a Designer in a Parametric Study

Categories:

Many Flownex users are familiar with using the Designer to size components to meet design requirements or using parameter tables to sweep through various operating conditions. Well, what if you need to do both? You may want to know operational inputs (without building out controls) for various operating conditions. Flownex currently offers component level (“Change Design”), precompiled steady state controller scripts, or running the designer through a script. Flownex version 8.15.0 now allows users to run the Designer during a Parameter Table run through the GUI.

Introduction

Today we will walk through how to embed a designer setup inside of a Parameter Table to vary the oil inlet pressure into a gearbox cooling compartment. We will use the designer to adjust the opening of the air bleed opening, to ensure that our container interface (top/bottom) maintains force balance across an oil lubrication system at each design point.

Network Description

For our network, we will be modelling a simplified turbine lubrication system. Air is introduced through labyrinth seals, modelled as a boundary condition, and exits through a restriction at the top of the compartment. Oil is introduced to the container and partially entrained with air (through a simple fixed percentage) before exiting the compartment. Below is a diagram of the system.

New Bitmap Image

The container interface top/bottom components allow us to specify the steady state level of oil in the bearing compartment. We will need to enforce force balance across the air/oil interface to ensure that oil will not be flooding or purging. In this network, we have used the designer to balance interfacial forces by adjusting the area of the outlet air restriction.

Designer Setup

We will look at how the temperature of the compartment varies with oil inlet pressure. However, we will need to vary the pressure drop of the air outlet to maintain force balance across the air/oil interface for each inlet pressure scenario. Rather than model air outlet pressure regulation, we will use the Designer to set the opening of the restrictor to achieve force balance.

Designer 2

Parameter Table Setup

After creating a Designer setup to maintain force balance, we can create our Parameter Table (covered in a previous post). Our parametric study will vary the oil inlet pressures and log the resultant mass flow rate and temperature of the oil air mixture exiting the system.

Parameter Table

Nested Parametric Study

Once we have created our parameter table and Designer setup, we can run a parametric study by clicking “Run Parameter Table” from the Home Menu. The parametric study will require us to choose a Parameter Table, then select additional run configuration options. We will select our Designer name from the dropdown and leave all of the other options as default, then select “OK”.

Nested Designer

With a few clicks we have nested our Designer inside of the parametric study – no scripts required.

Get Your Ansys Products & Support from the Engineers who Contribute to this Blog.

Technical Expertise to Enable your Additive Manufacturing Success.

PADT’s Pulse Newsletter

Keep up to date on what is going on at PADT by subscribing to our newsletter. Every month we share news about PADT, our partners, and our customers. We also share links to useful information on simulation, product development, and 3D Printing.  Sign up, and let's stay in touch.


By submitting this form, you are consenting to receive marketing emails from: . You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email. Emails are serviced by Constant Contact

Share this post:

Upcoming Events

06/26/2024

Structures Updates in Ansys 2024 R1 (3) - Webinar

06/26/2024

Enabling 6G Technologies - Ansys Hosted Webinar

06/27/2024

E-Mobility and Clean Energy Summit

07/15/2024

Experience Stratasys Truck Tour: Salt Lake City, UT

07/18/2024

Stratafest - Denver, CO

08/05/2024

2024 CEO Leadership Retreat

09/09/2024

Turbine Engine Technology Symposium 2024

09/10/2024

New Mexico Tech Summit 2024

10/23/2024

PADT30 | Nerdtoberfest 2024

Search the PADT Site

Contact Us

Most of our customers receive their support over the phone or via email. Customers who are close by can also set up a face-to-face appointment with one of our engineers.

For most locations, simply contact us: