Journal ArticleDOI
Fluid flow through catalyst filled tubes
Oliver Bey,Gerhart Eigenberger +1 more
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TLDR
In this paper, Vortmeyer et al. measured radial velocity profiles below the bed at empty tube velocities of air of 05 m/s <v0 < 15m/s and the tube-to-particle diameter ratios 33 <dtdP < 11 The profiles show a velocity maximum in the vicinity of the wall.About:
This article is published in Chemical Engineering Science.The article was published on 1997-04-01. It has received 233 citations till now. The article focuses on the topics: Packed bed & Fluid dynamics.read more
Citations
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Measured and modeled superficial flow profiles in packed beds with liquid flow
TL;DR: In this paper, superficial velocity profiles inside a packed bed were obtained for monodisperse packings of spheres, deformed spheres, cylinders and Raschig-ring by averaging over several thousand local measurements of the axial flow components within a cross-section.
Journal ArticleDOI
DEM-CFD simulations of fixed bed reactors with small tube to particle diameter ratios
TL;DR: In this paper, a new meshing method for fixed beds consisting of monodisperse spherical particles is presented, where the particles are flattened near the particle-particle and particle-wall contact points, respectively, to avoid bad cell qualities.
Journal ArticleDOI
CFD study of fluid flow and wall heat transfer in a fixed bed of spheres
TL;DR: In this article, the relationship between the local flow field and the local wall heat flux in a packed bed of spheres was investigated and it was shown that local heat transfer rates do not correlate statistically with local flow fields.
Journal ArticleDOI
Comparison of CFD simulations to experiment for convective heat transfer in a gas-solid fixed bed
TL;DR: In this paper, a quantitative comparison between CFD results and heat transfer experimental data is presented for a model geometry of 44 solid spheres in a tube with tube-to-particle diameter ratio equal to 2.
Journal ArticleDOI
CFD as a Design Tool for Fixed-Bed Reactors
TL;DR: In this article, the authors present a tool that is becoming more realistic for use in the description of the detailed flow fields within fixed beds of low tube-to-particle diameter ratio (N).
References
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Book
Numerical heat transfer and fluid flow
TL;DR: In this article, the authors focus on heat and mass transfer, fluid flow, chemical reaction, and other related processes that occur in engineering equipment, the natural environment, and living organisms.
Book
Chemical Reactor Analysis and Design
TL;DR: The fundamental Mass, Energy, and Momentum Balance Equations The Batch and Semibatch Reactors The Plug Flow Reactor The perfectly mixed flow Reactor Fixed Bed Catalytic Reactors Nonideal Flow Patterns and Population Balance Models Fluidized Bed and Transport Reactors Multiphase Flow Reactors Author Index Subject Index as mentioned in this paper
Journal ArticleDOI
A bubbling fluidization model using kinetic theory of granular flow
Jianmin Ding,Dimitri Gidaspow +1 more
TL;DR: In this paper, a predictive two-phase flow model was derived starting with the Boltzman equation for velocity distribution of particles, which is a generalization of the Navier-Stokes equations of the type proposed by R. Jackson, except that the solids viscosities and stresses are computed by simultaneously solving a fluctuating energy equation for the particulate phase.
Journal ArticleDOI
Slow flow through stationary random beds and suspensions of spheres
TL;DR: In this article, a generalization of Brinkman's (1947) method, which is applicable to both stationary beds and suspensions, is presented, and an expression for the settling velocity is derived.
Related Papers (5)
Measured and modeled superficial flow profiles in packed beds with liquid flow
Evaluation of steady flow profiles in rectangular and circular packed beds by a variational method
D. Vortmeyer,J. Schuster +1 more