Fluids

Fluids

  1. All Channels
  2. Fluids
  3. Help with ANSYS Fluent – Mass Flow Rate Issue

Help with ANSYS Fluent – Mass Flow Rate Issue

Tagged: 
    • February 23, 2022 at 11:18 pm
      mjh0619
      Subscriber
      image.png
    • February 24, 2022 at 1:03 pm
      Murari Iyengar
      Ansys Employee
      Hi mjh0619
      Can you provide more information about your simulation? On which surface are you monitoring Mass Flow Rate?
    • February 24, 2022 at 1:55 pm
      mjh0619
      Subscriber
      Hey
      I am monitoring from the INLET surface. I am running a transient analysis for a heat transfer problem with a small internal fan (pressure jump) inside. I am using an inlet velocity of 0.1 m/s with a pressure outlet to ambient. Please let me know what other information I can provide.
    • February 24, 2022 at 3:10 pm
      Rob
      Ansys Employee
      If you're monitoring the inlet mass flow, and the inlet velocity is 0.1m/s what should the mass flow be?
    • February 24, 2022 at 4:07 pm
      mjh0619
      Subscriber
      Well, assuming I have a cross sectional area of 0.4 x 0.4 = 0.16 m^2. I have an air density of 1.225 kg/m^3. And a velocity of 0.1 m/s. I would expect it to be about 0.0196 kg/s. I am hoping this answers your question?
    • February 24, 2022 at 4:08 pm
      mjh0619
      Subscriber
      I have never ran a simulation where the mass flow was so straight before! Maybe I am overthinking it?
    • February 24, 2022 at 4:24 pm
      Rob
      Ansys Employee
      If you're monitoring a fixed flow boundary the results tend to be fairly constant. Check the inlet area in Fluent too.
Viewing 6 reply threads
  • You must be logged in to reply to this topic.
Ansys Innovation Space

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.

Ansys Blog

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.

© 2023 Copyright ANSYS, Inc. All rights reserved.

Ansys does not support the usage of unauthorized Ansys software. Please visit www.ansys.com to obtain an official distribution.