The most recent content from our members.
There's a wealth of content waiting for you to explore! Need support or have a question? Sign in or register to get started.
An exclusive raffle opportunity for active members like you! Complete your profile, answer questions and get your first accepted badge to enter the raffle.
The variable editor in Flow Simulator (FS) is an easy yet powerful way to change many inputs quickly. If many model inputs use the same number (a hole diameter for example), consider using a variable to parameterize the input. Variables can be simple numeric input or an equation that can calculate an input based on other…
Hello, I have a student licence. I have done the activation via C:\Program Files\Altair\2025\security\bin\win64\gui and almutil_gui.exe. However, Flow Simulator gives me this odd error below: Do yo know how to solve this problem? Regards, Studente
Flow Simulator (FS), like many iterative solvers, can have convergence issues. This discussion provides some information on the FS solver and provides some suggestions to address convergence issues. Introduction The FS solver uses an iterative procedure to solve for the element flow rates and nonboundary chamber pressures.…
Dear Sir, I try to change material from Air to Water on property editor for the boundary plenum. But, only four material, air, air-setam mixture, steam and Humid Air, can be selected from the material list. How could I specify the water for the boundary Plenum on Property Editor? Best regards, John Yang
Flow Simulator (FS) can automatically create some flow elements directly from CAD geometry. This discussion describes the methods, features, and limitations of this useful tool in the FS user interface (UI). Introduction FS is a tool that can be used throughout the design cycle. Preliminary design studies can be conducted…
I checked tutorials and documentation but its not helping me. I created vertices using select option and tried to drag tube/bend into my geometry, they are not getting fixed on the location.
Unable to give fluid properties to the plenum shown here. How to configure?
Flow Simulator (FS) models can contain hundreds or even thousands of chambers, elements, thermal nodes, and resistors. Creating groups is a powerful way to organize and visualize these items in large models. Read this article to learn more about creating and managing groups. Grouping overview The Flow Model Browser and the…
The Flow Simulator (FS) API allows users to create a main control program to load the FS solver DLL to perform basic functions such as loading and running a model. The API can be used to couple a FS model with another solver (ex: a thermal solver for 2D or 3D parts) The following features are currently available in FS DLL:…
A transient analysis in Flow Simulator (FS) often requires boundary conditions that change with time. A mission component is used to store a table of time dependent data. A controller is used to transfer data from the mission component to the model boundary conditions. Creating a Mission Component A mission component is a…
Visualizing results is important to the understanding of a flow or thermal network. Flow Simulator can display results using text, color, or plots. Read this for a quick review of each type of post processing. The first step is always to have a results file loaded into the FS user interface. The results file is…
Flow Simulator (FS) has many built-in heat transfer coefficient (HTC) correlations, but FS may not include a correlation required by the user. Fortunately, it is easy to add your own correlation to FS. This blog explores the customization manager for HTC correlations. There are numerous HTC correlations in the public…
June 26, 2025 | Virtual Global Event
Exceptional individuals who support the Community.
The Community Team would like to introduce the May Champion of the Month, Simone Reitano @Simone_Reitano. Simone is an Aerospace Engineer, graduated from Politecnico di Torino in 2019. After an initial experience as a Fellow Researcher, he joined BEOND, an innovative SME providing advanced engineering services, including…
The Altair Support page provides users with access to the Altair Learning Center page, which can be reached either directly through or by logging into the: Altair One or Altair Community Users in Altair Learning Center have access to four different sections: In the Explore Content section, users can refine their search…
Complete your Profile, Get Your First Accepted Answer Badge & Enter to Win! We're celebrating our amazing Altair Community with an exclusive raffle opportunity for active members like you! How to Enter the $25 Raffle Step 1: Earn your first accepted answer badge by answering community questions and getting your answers…
Watch a Quick Tour video for a guided experience to understand and navigate the site's features and functionality.
Hello Community Members! Welcome to our May Community Roundup! As we wrapped up a beautiful May and moved in to June, I am excited to share highlights from our buzzing Altair Community. Before we dive in to May's achievement, don't forget to participate in our exciting June Community Raffle - Complete your Profile, Get…
We are pleased to share that Altair have been recognized as Leaders for the 2nd year in a row in the Gartner(r) Magic Quadrant(tm) for Data Science and Machine Learning Platforms! In the words of Altair CTO Sam Mahalingham: 'We think being recognized as a Leader for the second consecutive year further validates Altair’s…