A coupling approach between resolved and coarse-grid sub-channel CFD

Liu, B.; He, Suqin; Moulinec, Charles; Uribe, Juan

doi:10.1016/j.nucengdes.2021.111124

Cited by 4 publications

(3 citation statements)

References 25 publications

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Section: Methodsmentioning

confidence: 99%

“…In order to ensure the calculation accuracy, the area enveloping the revolution range of the fan shall be subject to mesh encryption, 35 and the fan area and the spray workshop area shall be subject to grid overlap processing through overlapping grids. 36 In consideration of the calculation speed of models, the fan area and the spray workshop area are set up. Including the real performance calculation of the fan and the flow calculation of the spray workshop.…”

Section: Mesh Generationmentioning

confidence: 99%

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A combined CFD-based simulation and experimental study of particle dispersion in a high-concentration airtight space under unorganized airflow

Li,

et al. 2024

Advances in Mechanical Engineering

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It is significant to obtain the particle distribution data for workpiece processing and industrial protection strategies. To simulate the particle dispersion in a high-concentration airtight space under unorganized airflow, a CFD-based simulation and experimental were utilized in this study. The proposed method works in three steps. The first step is to use Stokes-MRF-Fan-CFD model to simplify the distribution of high-concentration particles calculation to the dispersion state of the gas components. The second step is to compute the airflow patterns and dispersion of particles. The third step is to prove the feasibility of Stokes-MRF-Fan-CFD model. The results of this model in particle dispersion show ±200 mg·m−3 of absolute error, ±20% of relative error, and 88.5747 grade of simulation accuracy. And the results of particle concentration distribution can be mutually confirmed with the streamline and velocity vector distribution in the airtight space, providing a promising and innovative model for the particle dispersion in a high-concentration airtight space under unorganized airflow.

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Section: Methodsmentioning

confidence: 99%

Section: Mesh Generationmentioning

confidence: 99%

A combined CFD-based simulation and experimental study of particle dispersion in a high-concentration airtight space under unorganized airflow

Li,

et al. 2024

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

“…Great caution should also be exercised when the method is used for some off-design reactor conditions where the empirical correlations may be no longer invalid and consequently lead to wrong predictions. To deal with such difficulties, a coupling approach has been developed in our recent work (Liu et al, 2021), allowing resolved CFD sub-models to be nested into the regions that are of interest but cannot be suitably handled by SubChCFD, to locally improve the prediction. Such a strategy greatly enlarges the application range of SubChCFD but inevitably results in an increase in computing cost, and additionally, the generation of the related refined CFD mesh is usually onerous, tedious and time-consuming.…”

Section: Introductionmentioning

confidence: 99%