Asked a question in nucleate boiling ?

Hi,

I suggest you see the links on the topic.

https://forum.ansys.com/forums/topic/critical-heat-flux-wall-boiling-model-in-ansys-fluent/

https://forum.ansys.com/forums/topic/problem-with-udf/

https://forum.ansys.com/forums/topic/critical-heat-flux-simulation-fluent/

https://forum.ansys.com/forums/topic/how-to-maintain-saturation-temperature-and-pressure-during-nucleate-pool-boiling-in-ansys/

https://www.diva-portal.org/smash/get/diva2:408153/FULLTEXT01.pdfMaster

https://www.mdpi.com/2311-5521/7/6/187

https://www.ripublication.com/ijdf17/ijdfv13n1_09.pdf

https://www.researchgate.net/topic/Boiling-Heat-Transfer

https://carrieradda.com/qa/886/the-heat-flux-in-nucleate-boiling-varies-in-accordance-with

https://asmedigitalcollection.asme.org/heattransfer/article/128/1/1/467476/Mechanistic-Prediction-of-Nucleate-Boiling-Heat

Best regards

Ahmad Al Khraisat

Modeling nucleate boiling in ANSYS Fluent requires the following steps:

Define the Problem Geometry: Create a 2D or 3D model of the boiling system you want to analyze, including all relevant physical boundaries and components.

Choose the Appropriate Model: Select the appropriate model for boiling from the Fluent Model Library. For example, the models for boiling include, such as Homogeneous Model, Heterogeneous Model, or Interfacial Area Transport Model (IATM).

Set the Initial and Boundary Conditions: Define the initial conditions, such as the fluid properties, temperature, and velocity, as well as the boundary conditions, such as the wall temperature and heat flux.

Specify the Nucleation Site Density: In ANSYS Fluent, the nucleation site density can be specified using the Heterogeneous Model or the Interfacial Area Transport Model (IATM).

Define the Material Properties: Define the material properties, such as density, viscosity, thermal conductivity, and surface tension, that are required for boiling simulation.

Solve the Problem: Run the simulation in ANSYS Fluent and monitor the results, including the temperature profile, pressure, and velocity. You can also visualize the boiling process and analyze the results to understand the behavior of the system.

Validate the Results: Validate the results against experimental data or theoretical predictions to ensure that the model is accurate and the simulation results are meaningful.

Note: The exact steps may vary depending on the specific requirements of your project, but the above steps should give you a good starting point for modeling nucleate boiling in ANSYS Fluent.

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