In a Non-adiabatic PDF calculation for a non-premixed combustion model, I am specifying an inlet temperature of 290 K but when I report the area weighted average of the temperature on the inlet I observe a higher temperature of 300K. How do I resolve this?
Tagged: 14, fluent, fluid-dynamics, General - FLUENT, Mixture Fraction, reaction, Species/Reactions
January 25, 2023 at 7:17 amFAQParticipant
In a non-premixed combustion model one needs to specify the minimum temperature for the PDF table calculation. This is specified in the “Table” tab in the species transport panel after you switch on the Nonpremixed combustion model. The minimum temperature specified here should be at least 20-30º less than the minimum temperature in the system. Meaning it should be such that the PDF table captures the whole range of temperatures for a mixture fraction. In the present scenario the minimum PDF temperature might be specified as higher than the Inlet temperature of 290 K. On the contrary it should be less than 290 K or lower than the minimum temperature input in the system. Correcting this setting would report the accurate temperature value at the inlet.
Introducing Ansys Electronics Desktop on Ansys Cloud
The Watch & Learn video article provides an overview of cloud computing from Electronics Desktop and details the product licenses and subscriptions to ANSYS Cloud Service that are...
How to Create a Reflector for a Center High-Mounted Stop Lamp (CHMSL)
This video article demonstrates how to create a reflector for a center high-mounted stop lamp. Optical Part design in Ansys SPEOS enables the design and validation of multiple...
Introducing the GEKO Turbulence Model in Ansys Fluent
The GEKO (GEneralized K-Omega) turbulence model offers a flexible, robust, general-purpose approach to RANS turbulence modeling. Introducing 2 videos: Part 1 provides background information on the model and a...
Postprocessing on Ansys EnSight
This video demonstrates exporting data from Fluent in EnSight Case Gold format, and it reviews the basic postprocessing capabilities of EnSight.
- I am running an electrochemistry simulation in Fluent. How can I access the electrochemistry reaction rates with UDF?
- How do I model humidity in Fluent?
- ANSYS Internal Combustion Engine (ICE): Port Flow Part 1 – Getting Started
- LES Simulation of Turbulent Flames Using ANSYS Fluent
- How can volume fraction be plotted in a species transport simulation?
- ANSYS Fluent: Describing Non-premixed Combustion using the Steady Flamelet Model
- ANSYS Internal Combustion Engine: (ICE) Engine Sector Combustion Part 1 Getting Started
- ANSYS Internal Combustion Engine (ICE): Engine Sector Combustion Part 6 Results
- What is a DASAC failure and how can I correct it?
- ANSYS Internal Combustion Engine: (ICE) Engine Sector Combustion Part 4 SolverSetup
© 2023 Copyright ANSYS, Inc. All rights reserved.