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An overview of recent applications of computational modelling in neonatology.

Wrobel LC, Ginalski MK, Nowak AJ, Ingham DB, Fic AM - Philos Trans A Math Phys Eng Sci (2010)

Bottom Line: This paper reviews some of our recent applications of computational fluid dynamics (CFD) to model heat and mass transfer problems in neonatology and investigates the major heat and mass-transfer mechanisms taking place in medical devices, such as incubators, radiant warmers and oxygen hoods.It is shown that CFD simulations are very flexible tools that can take into account all modes of heat transfer in assisting neonatal care and improving the design of medical devices.

View Article: PubMed Central - PubMed

Affiliation: School of Engineering and Design, Brunel University, Uxbridge UB8 3PH, UK. luiz.wrobel@brunel.ac.uk

ABSTRACT
This paper reviews some of our recent applications of computational fluid dynamics (CFD) to model heat and mass transfer problems in neonatology and investigates the major heat and mass-transfer mechanisms taking place in medical devices, such as incubators, radiant warmers and oxygen hoods. It is shown that CFD simulations are very flexible tools that can take into account all modes of heat transfer in assisting neonatal care and improving the design of medical devices.

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Related in: MedlinePlus

(a) Three-dimensional model of the Caleo incubator, with CFD results displayed as flow pathlines coloured by temperature; (b) polyhedral mesh for the Caleo incubator.
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RSTA20100052F1: (a) Three-dimensional model of the Caleo incubator, with CFD results displayed as flow pathlines coloured by temperature; (b) polyhedral mesh for the Caleo incubator.

Mentions: Several calculations with different mesh sizes have been performed to verify the accuracy of the simulations, as described in Ginalski et al. (2007). Quantities like the heat transfer due to radiation and the total heat transfer exchanged between the infant and the surrounding environment were monitored and compared. The meshes analysed were composed of tetrahedral elements, with typical converged meshes consisting of 1 500 000 elements. A typical model is shown in figure 1a, where the CFD results for the simulation of a double-walled incubator are shown as flow pathlines coloured by temperature. More recent simulations employed polyhedral meshes available in the ansys fluent solver (Ginalski et al. 2008), which provide better convergence and stability during the calculations of complex physical processes. A typical polyhedral mesh for an incubator is shown in figure 1b.


An overview of recent applications of computational modelling in neonatology.

Wrobel LC, Ginalski MK, Nowak AJ, Ingham DB, Fic AM - Philos Trans A Math Phys Eng Sci (2010)

(a) Three-dimensional model of the Caleo incubator, with CFD results displayed as flow pathlines coloured by temperature; (b) polyhedral mesh for the Caleo incubator.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2944385&req=5

RSTA20100052F1: (a) Three-dimensional model of the Caleo incubator, with CFD results displayed as flow pathlines coloured by temperature; (b) polyhedral mesh for the Caleo incubator.
Mentions: Several calculations with different mesh sizes have been performed to verify the accuracy of the simulations, as described in Ginalski et al. (2007). Quantities like the heat transfer due to radiation and the total heat transfer exchanged between the infant and the surrounding environment were monitored and compared. The meshes analysed were composed of tetrahedral elements, with typical converged meshes consisting of 1 500 000 elements. A typical model is shown in figure 1a, where the CFD results for the simulation of a double-walled incubator are shown as flow pathlines coloured by temperature. More recent simulations employed polyhedral meshes available in the ansys fluent solver (Ginalski et al. 2008), which provide better convergence and stability during the calculations of complex physical processes. A typical polyhedral mesh for an incubator is shown in figure 1b.

Bottom Line: This paper reviews some of our recent applications of computational fluid dynamics (CFD) to model heat and mass transfer problems in neonatology and investigates the major heat and mass-transfer mechanisms taking place in medical devices, such as incubators, radiant warmers and oxygen hoods.It is shown that CFD simulations are very flexible tools that can take into account all modes of heat transfer in assisting neonatal care and improving the design of medical devices.

View Article: PubMed Central - PubMed

Affiliation: School of Engineering and Design, Brunel University, Uxbridge UB8 3PH, UK. luiz.wrobel@brunel.ac.uk

ABSTRACT
This paper reviews some of our recent applications of computational fluid dynamics (CFD) to model heat and mass transfer problems in neonatology and investigates the major heat and mass-transfer mechanisms taking place in medical devices, such as incubators, radiant warmers and oxygen hoods. It is shown that CFD simulations are very flexible tools that can take into account all modes of heat transfer in assisting neonatal care and improving the design of medical devices.

Show MeSH
Related in: MedlinePlus