Heat transfer from a sphere to rarefied gas mixtures

Mikami, Hisashi; Endo, Yousuke; Takashima, Yoshinori

doi:10.1016/0017-9310(66)90139-6

Cited by 25 publications

(3 citation statements)

References 4 publications

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“…The heat transfer coefficient, h , is obtained from the correlation of Mikami et al which accounts for the effects of rarefied flow around the particles. The current rate of evaporation (d m p / d t) is obtained from the particle mass balance (cf.…”

Section: Cfd Modellingmentioning

confidence: 99%

Modelling of particulate matter transformations and capture efficiency

et al. 2014

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In the current work, a comprehensive computational fluid dynamics (CFD) model is developed for an accurate description of the transport and transformation of automotive particulate matter (PM) in monolithic reactors. The model accounts for the developing gas flow, the evaporation of hydrocarbons (HCs) from the particles, and the adsorption of HCs in the washcoat, as well as motion, shrinkage, and deposition of particles in the channel. The comprehensive CFD model is used to validate a simplified tanks‐in‐series approach with a conceptual model for PM transformations. In the development of more detailed and accurate chemical kinetics for the reactions of PM in filters, it will be necessary to also predict the time‐resolved properties of the particles collected in the filter (e.g., reactivity, amount of adsorbed HCs). It is shown in this work how the data necessary to construct such models can be obtained in situ with the aid of the conceptual model and PM measurements over an inert open substrate.

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Section: Cfd Modellingmentioning

confidence: 99%

Modelling of particulate matter transformations and capture efficiency

et al. 2014

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“…To obtain the solution at an unknown point Pz it is neces• sary to use an iterative process, which is continued unti the criterion r3" -r3"_1 The details of the method of computation are described in previous papers (Mikami, 1969;Mikami and Takashima, 1968a). The streamlines obtained are shown with the value of cut, , as a parameter in Figure 5, in which the experimental data of Becker et al (1962) for pure argon are also plotted.…”

Section: Proposed Equation For Integral Mass Fluxmentioning

confidence: 99%

“…Very recently, the present author (Mikami and Takashima, 1968a) reported on an off-axis experiment on the separation of a H2-N2 mixture, and presented numerical analysis. Reasonable agreement between calculated and experimental results was obtained.…”

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confidence: 99%