CFD-based three-dimensional modeling of an adhesively detaching soil layer in a channel flow with sudden expansion

Golla, C.; Köhler, Hannes; Liebmann, V.; Fröhlich, Jochen; Rüdiger, Frank

doi:10.1016/j.fbp.2022.10.004

Cited by 6 publications

(2 citation statements)

References 23 publications

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“…This process has been meticulously described using the Boundary Condition Change Model (BCCM) by Joppa et al (2017), with the model being corroborated using cleaning experiments. Parallel advancements by Golla et al (2022) have expanded the BCCM to account for cohesive separation, testing its validity against starch soil experiments.…”

Section: Applications Of Cfd Models In the Cleaning Of Food‐contact S...mentioning

confidence: 99%

Computational fluid dynamics (CFD) modeling and application for cleaning of food‐contact surfaces: A review

Chai,

Su,

et al. 2024

J Food Process Engineering

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In the food industry, ensuring clean production equipment is essential for maintaining product quality and safeguarding consumer health. For optimal geometric cleaning, it is crucial to consider the specific interactions between flow, dirt, and cleaning fluids. Computational fluid dynamics (CFD) is a powerful tool for simulating fluid flow behavior, especially in terms of momentum, mass, and energy transfer. It has been widely used to model elimination processes in food sanitation. The construction of CFD model and the cleaning of food contact surface were explored. Additionally, an overview of existing CFD studies on fouling and cleaning mechanisms was provided in this manuscript. The goal of this review is to discuss the present state of CFD modeling in cleaning soil from surfaces and to offer a valuable reference for food cleaning process.

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Section: Applications Of Cfd Models In the Cleaning Of Food‐contact S...mentioning

confidence: 99%

Computational fluid dynamics (CFD) modeling and application for cleaning of food‐contact surfaces: A review

Chai,

Su,

et al. 2024

J Food Process Engineering

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“…The knowledge about the soil and its removal is transformed into a suitable boundary condition for the scalar transport equation. In follow-up works of the same authors further cleaning models were developed with the concept of decoupling flow simulation and calculation of soil removal [6,9,10]. However, the newer models no longer require solving a scalar transport equation, since soil removal is described differently.…”

Section: Introductionmentioning

confidence: 99%

Aspects of image data preparation to extend a classification scheme for cleaning mechanisms to realistic soils

Golla,

Boddin,

Köhler

et al. 2024

Proc Appl Math and Mech

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Knowledge of the cleaning mechanism is necessary to choose a suitable model for a cleaning simulation. In the present work, an existing classification scheme for cleaning mechanisms is considered. Altough this framework is quite promising, the generation of training data constitutes a bottleneck, since the labeling was done manually and very roughly in order to supply the necessary amount of samples in a reasonable time. This, in turn, causes the scheme to be inaccurate when applied to more realistic data. The aim of the present work is to improve the preparation of training data preparation by introducing a semi‐automatic labeling procedure. The labeling procedure involves a new perspective on the data and the application of a gradient filter procedure. Furthermore, fully convolutional networks (FCNs) are employed to generalize different gradient filter. The labeling procedure is significantly faster and more consistent than manual labeling. Also, a proof of concept is provided showing that the FCNs are a suitable technique for the present classification task.

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Numerical modeling of a cohesively separating soil layer in consideration of locally varying soil distribution

et al. 2023

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Predicting the cleaning time required to remove a thin layer of soil is a challenging task and subject of current research. One approach to tackle this problem is the decomposition into physical sub-problems which are modelled separately and the subsequent synthesis of these models. In this paper, an existing model for adhesive detachment is extended for the prediction of the cleaning time of cohesively separating soil layers. The extension is based on measurements of the pull-off forces and their correlation to the local water mass fraction. The resulting new model is validated using cleaning experiments with starch in a fully developed channel flow. Furthermore, an inhomogeneous soil distribution and its effect on cleaning results like cleaning time and removal rate is investigated. It is shown that accounting for the local soil distribution in the model leads to a significant improvement of the prediction of the cleaning behaviour.

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CFD-based three-dimensional modeling of an adhesively detaching soil layer in a channel flow with sudden expansion

Cited by 6 publications

References 23 publications

Computational fluid dynamics (CFD) modeling and application for cleaning of food‐contact surfaces: A review

Computational fluid dynamics (CFD) modeling and application for cleaning of food‐contact surfaces: A review

Aspects of image data preparation to extend a classification scheme for cleaning mechanisms to realistic soils

Numerical modeling of a cohesively separating soil layer in consideration of locally varying soil distribution

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