Simple Particle Relaxation Modeling in One-Dimensional Oscillating Flows

Heidinger, Stefan; Unz, Simon; Beckmann, Michael

doi:10.3390/pr10071322

Cited by 3 publications

(2 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tokheim et al [6] used the CFD software Barracuda VR ® to simulate a laboratory-scale cold-flow circulating fluidized bed classifier, comparing experimental results with CFD simulations to determine the most appropriate resistance model for accurately representing the real flow field. Beckmann et al [7] calculated the relaxation effect of suspended rigid particles in one-dimensional oscillatory flow based on different resistance models and derived conditions in which relaxation can be neglected or where the resistance model can be replaced with a simpler configuration. Zhengtao Ren et al [8] proposed a new method for automatically calculating the chord slope of the soil grain size distribution (PSD) curve and provided a comprehensive chart for checking the internal stability of sandy gravel.…”

Section: Model Development and Optimizationmentioning

confidence: 99%

Special Issue “Multiphase Flows and Particle Technology”

Chen,

Wang,

2023

Processes

View full text Add to dashboard Cite

show abstract

Section: Model Development and Optimizationmentioning

confidence: 99%

Special Issue “Multiphase Flows and Particle Technology”

Chen,

Wang,

2023

Processes

View full text Add to dashboard Cite

show abstract

“…For example, Heidinger et al [8] describe the upscaling of the synthesizing process of zirconia and silica from the laboratory-scale flame spray pyrolysis [9,10] to the PR. The outstanding product properties might be attributed to the special process parameters in a PR, i.e., the periodically varying flow conditions and the resulting enhanced and persistent heat and mass transfer [11][12][13][14]. Therefore, understanding how the PR operation parameters relate to the process parameters is crucial in the pursuit of configurable and tailored product proprieties [4].…”

Section: Introduction 1pulsation Reactors For Materials Treatmentmentioning

confidence: 99%

Effects of Fuel Input on Pulsation Reactor Behavior—An Experimental Study

Dostál

Heidinger

Klaus³

et al. 2023

Processes

Self Cite

View full text Add to dashboard Cite

Material treatment in pulsation reactors (PR) brings the possibility of synthesizing powdery products with advantageous properties, such as nanoparticle sizes and high specific surface areas, at an industrial scale. The extraordinary material properties can be ascribed to special process parameters in a PR, primarily the periodically varying conditions and the consequently enhanced heat and mass transfer between the medium and the particles of the material. Understanding the connections between the PR operation parameters, such as fuel and air intake or PR geometry, and the resulting process parameters (temperature distribution, flow velocity and pressure field, and frequency of the pulsations) is essential to enabling a controllable treatment process. Despite the long history of pulsation reactor technology, many connections and dependencies remain unclear. Thus, the influence of the fuel (and air) supply on the pulsation reactor behavior is experimentally examined in this study. The investigated PR characteristics and process parameters are primarily those that have an impact on the heat and mass transfer, i.e., the temperature distribution, flow velocity, and pressure field, and frequency of the pulsations. In addition to these, the harmonic distortion of the oscillations and the heat losses are evaluated.

show abstract

Heat and Mass Transfer to Particles in One-Dimensional Oscillating Flows

2023

View full text Add to dashboard Cite

The heat and mass transfer to solid particles in one-dimensional oscillating flows are investigated in this work. A meta-correlation for the calculation of the Nusselt number (Sherwood number) is derived by comparing 33 correlations and data point sets from experiments and simulations. These models are all unified by their dependencies on the amplitude parameter 10−3≤ϵ≤103 and the Reynolds number 10−1≤Re≤106, while the ϵ-Re plane is applied as a framework in order to graphically display the various models. This is the first study to consider this problem in the entire ϵ-Re plane quantitatively while taking preexisting asymptotic models for various areas of the ϵ-Re plane into account.

show abstract

Simple Particle Relaxation Modeling in One-Dimensional Oscillating Flows

Cited by 3 publications

References 15 publications

Special Issue “Multiphase Flows and Particle Technology”

Special Issue “Multiphase Flows and Particle Technology”

Effects of Fuel Input on Pulsation Reactor Behavior—An Experimental Study

Heat and Mass Transfer to Particles in One-Dimensional Oscillating Flows

Contact Info

Product

Resources

About