September 26, 2023 at 7:39 amyang suliSubscriber
The heat transfer of the Venturi reactor jacket is carried out with an inlet diameter of 15mm, an outlet diameter of 22.5mm, and a jacket thickness of 12mm. The length of the straight pipe section at the rear end of the reactor is 1000mm. The boundary conditions are set as follows: both inlets of the reactor have a velocity inlet of 1m/s, and the outlet has a pressure outlet of 0.1MPa. The jacket uses 300 ° C thermal oil for heat transfer, with an inlet velocity of 2m/s and an outlet pressure of 0.1MPa. The heat transfer cloud diagram and the temperature curve along the axis direction are shown below.
The simulation adopts fluid solid coupling heat transfer, and the outer wall of the reactor is set as air convective heat transfer. Is the simulation result reasonable?
I would like to ask if the heat transfer effect is reasonable. The simulation shows that the fluid temperature rises slowly, making it difficult to meet the actual reaction requirements.
September 26, 2023 at 12:38 pmRobForum Moderator
How well resolved is the mesh (near wall and bulk flow) and what have you got set as the boundary between the two fluid zones? How does the heat flux balance look?
October 12, 2023 at 7:50 amyang suliSubscriber
The coupling heat transfer between fluid and solid is set up, and a shared topology is set up inside the SC. The simulation results show that the heat flux appears to be balanced.
Grid partitioning is performed in fluent messaging, but the quality of partitioning is poor. After using automatic node movement to improve the grid quality, the overall orthogonal quality is greater than 0.5.
October 12, 2023 at 1:07 pmRobForum Moderator
Overall balance looks OK, now, if you look at heat transfer from one zone to the next (via the wall & wall: shadow pairs) how warm/cold should the material be?
- 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.
- Licensing – Request name does not exist in the licensing pool
- 2022 R1 Ansys Mechanical APDL: QXcbConnection: Failed to initialize XRandr
- error “ansyslmd: Cannot connect to license server system. (-15,10032)
- The analysis systems in Workbench are missing
- Student license renewal
- Mechanical APDL Launcher Options
- how to open files created from newer version by using the older version of ansys
- Problems using 2022/R2
- Ansys Helic Tools Installation Issue: Missing Helic_PDK directory
- Results Probe in ANSYS Workbench
© 2023 Copyright ANSYS, Inc. All rights reserved.