Alf-Erik Almstedt

Full Professor at Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Alf-Erik Almstedt is professor of multiphase flow and Vice Head of Doctoral Studies at the department of Mechanics and Maritime Sciences.

Source: chalmers.se

Showing 44 publications

2015

The crucial role of frictional stress models for simulation of bubbling fluidized beds

Meisam Farzaneh, Alf-Erik Almstedt, Filip Johnsson et al
Powder Technology. Vol. 270 (Part A), p. 68-82
Journal article
2013

Simulation of Fuel Mixing in Fluidized Beds using a Combined Tracking Technique

Meisam Farzaneh, Alf-Erik Almstedt, Filip Johnsson et al
Fluidization XIV, 2013, Noordwijkerhout, The Netherlands
Paper in proceedings
2013

Eulerian-Eulerian-Lagrangian Simulation of Fuel Mixing in Fluidized beds

Meisam Farzaneh, Alf-Erik Almstedt, Filip Johnsson et al
8th International Conference on Multiphase Flow ICMF 2013, Jeju, Korea, May 26 - 31, 2013
Paper in proceedings
2013

A Study of Fuel Particle Movement in Fluidized Beds

Meisam Farzaneh, Srdjan Sasic, Alf-Erik Almstedt et al
Industrial & Engineering Chemistry Research. Vol. 52 (16), p. 5791-5805
Journal article
2011

A novel multigrid technique for lagrangian modeling of fuel mixing in fluidized beds

Meisam Farzaneh, Srdjan Sasic, Alf-Erik Almstedt et al
Chemical Engineering Sciences. Vol. 66 (22), p. 5628-5637
Journal article
2010

A Novel Multigrid Approach for Lagrangian Modeling of Fuel Mixing in Fluidized Beds

Meisam Farzaneh, Srdjan Sasic, Alf-Erik Almstedt
Proceedings of the International Conference on Multiphase Flow, Tampa, 2010
Paper in proceedings
2010

Dynamics of fibres in a turbulent flow field – A particle-level simulation technique

Srdjan Sasic, Alf-Erik Almstedt
International Journal of Heat and Fluid Flow. Vol. 31 (6), p. 1058-1064
Journal article
2010

A novel multigrid approach for Lagrangian modeling of fuel mixing in fluidized beds

Meisam Farzaneh, Srdjan Sasic, Alf-Erik Almstedt et al
Proc. of IMFC2010, International Conference on Multiphase Flow (Tampa, USA)
Paper in proceedings
2009

Dynamics of fibres in a turbulent flow field - a novel particle-level simulation technique

Srdjan Sasic, Alf-Erik Almstedt
14th International Conference on Modelling Fluid Flow, CMFF 09 Budapest
Paper in proceedings
2008

Individual fibre in an arbitrary flow field - true direct numerical simulation (DNS) using an implicit immersed boundary method

Srdjan Sasic, Berend van Wachem, Alf-Erik Almstedt et al
11th International Conference on Multiphase Flow in Industrial Plants
Paper in proceedings
2007

Discrete element simulations and experimental validation of particle packing in a 5 mm chromatography column.

Rasmus Hemph, Joakim Svensson, Berend van Wachem et al
Sixth International Conference on Multiphase Flows, Leipzig
Paper in proceedings
2006

Experimental validation of CFD models for fluidized beds: Influence of particle stress models, gas phase compressibility and air inflow models

Klas Johansson, Berend van Wachem, Alf-Erik Almstedt
Chemical Engineering Sciences. Vol. 61 (5), p. 1705-1717
Journal article
2006

DEM Modeling of Hopper Flows: Comparison and Validation of Models and Parameters

Rasmus Hemph, Berend van Wachem, Alf-Erik Almstedt
AIChE, Proc. Fifth World Congress on Particle Technology, Orlando, Florida
Paper in proceedings
2005

Dual fibre optical probe measurements of solids volume fraction in a circulating fluidized bed

Anna Magnusson, Robert Rundqvist, Alf-Erik Almstedt et al
Powder Technology. Vol. 151 (1-3), p. 19-26
Journal article
2004

Comparison of CFD models for fluidized beds - particle models, solvers and experimental validation

Klas Johansson, Berend van Wachem, Alf-Erik Almstedt
Proceedings of the 3d international symposium of two-phase flow modelling and experimentation, Pisa, Italy
Paper in proceedings
2004

Hydrodynamics and steel tube wastage in a fluidized bed at elevated temperature

Kent Johansson, Rikard Norling, Anders Hjörnhede et al
Chemical Engineering Science. Vol. 59, p. 31-40
Journal article
2003

Dual optical fibre measurements of the particle concentration in gas/solid flows

Robert Rundqvist, Anna Magnusson, Berend van Wachem et al
Experiments in Fluids. Vol. 35, p. 572-579
Journal article
2003

Application of wedge-shaped hot-film probes in a gas-particle flow

Bert Johansson, Camilla Ljus, Alf-Erik Almstedt
Experimental Thermal and Fluid Science. Vol. 27 (2), p. 187-191
Journal article
2003

Methods for multiphase computational fluid dynamics

Berend van Wachem, Alf-Erik Almstedt
Chemical Engineering Journal. Vol. 96 (1-3), p. 81-98
Journal article
2002

Turbulence modification by particles in a horizontal pipe flow

Camilla Ljus, Bert Johansson, Alf-Erik Almstedt
International Journal of Multiphase Flow. Vol. 28 (7), p. 1075-1090
Journal article
2002

The hydrodynamics of a 3D wurster type fluidized bed.

Anna Magnusson, Berend van Wachem, Alf-Erik Almstedt
AIChE Annual Meeting, Indianapolis
Paper in proceedings
2001

Study of two gas-particle flows using Eulerian/Eulerian two-fluid models.

Klas Johansson, Anna Magnusson, Robert Rundqvist et al
Fourth International Conference on Multiphase Flows, New Orleans
Paper in proceedings
2000

Numerical simulation of fluid dynamics in fluidized beds with horizontal heat exchanger tubes

Mattias Gustavsson, Alf-Erik Almstedt
Chemical Engineering Sciences. Vol. 55 (4), p. 857-866
Journal article
2000

Two-fluid modelling of cooling-tube erosion in a fluidized bed

Mattias Gustavsson, Alf-Erik Almstedt
Chemical Engineering Sciences. Vol. 55 (4), p. 867-879
Journal article
2000

Frequency response correction of hot-film measurements in a turbulent airflow

Camilla Ljus, Bert Johansson, Alf-Erik Almstedt
Experiments in Fluids. Vol. 29, p. 36-41
Journal article
1999

Fluid dynamics of a pressurized fluidized bed: comparison between numerical solutions from two-fluid models and experimental results

Hans Enwald, Alf-Erik Almstedt
Chemical Engineering Sciences. Vol. 54 (3), p. 329-342
Journal article
1999

Eulerian modelling of pulp-fibre transport in airflow

Camilla Ljus, Alf-Erik Almstedt
Proc. 2nd Int. Symp. on Two-Phase Flow Modelling and Experimentation, Pisa, p. 1553-1560
Paper in proceedings
1999

Simulation of the fluid dynamics of a bubbling fluidized bed. Experimental validation of the two-fluid model and evaluation of a parallel multiblock solver

H. Enwald, E. Peirano, Alf-Erik Almstedt et al
Chemical Engineering Sciences. Vol. 54 (3), p. 311-328
Journal article
1998

Influence of pressure, fluidization velocity and particle size on the hydrodynamics of a freely bubbling fluidized bed

Jan Wiman, Alf-Erik Almstedt
Chemical Engineering Sciences. Vol. 53 (12), p. 2167-2176
Journal article
1997

Hydrodynamics, erosion and heat transfer in a pressurized fluidized bed: influence of pressure, fluidization velocity, particle size and tube bank geometry

Jan Wiman, Alf-Erik Almstedt
Chemical Engineering Sciences. Vol. 52 (16), p. 2677-2695
Journal article
1996

Eulerian two-phase flow theory applied to fluidization

Hans Enwald, Eric Peirano, Alf-Erik Almstedt
International Journal of Multiphase Flow. Vol. 22 (Suppl. 1), p. 21-66
Journal article
1995

Hydrodynamics of a pressurized fluidized bed with horizontal tubes: Influence of pressure, fluidization velocity and tube-bank geometry

Elisabet Olsson, Jan Wiman, Alf-Erik Almstedt
Chemical Engineering Sciences. Vol. 50 (4), p. 581-592
Journal article
1995

Erosion of horizontal tubes in a pressurized fluidized bed — Influence of pressure, fluidization velocity and tube-bank geometry

Jan Wiman, Bahram Mahpour, Alf-Erik Almstedt
Chemical Engineering Sciences. Vol. 50 (21), p. 3345-3356
Journal article
1995

Local instantaneous and time-averaged heat transfer in a pressurized fluidized bed with horizontal tubes: Influence of pressure, fluidization velocity and tube-bank geometry

Elisabet Olsson, Alf-Erik Almstedt
Chemical Engineering Sciences. Vol. 50 (20), p. 3231-3245
Journal article
1995

Dimensionless expansion model for bubbling fluidized beds with and without internal heat exchanger tubes

Hans Löfstrand, Alf-Erik Almstedt, Sven B Andersson
Chemical Engineering Sciences. Vol. 50, p. 245-253
Journal article
1993

An investigation of fluidized-bed scaling: heat transfer measurements in a pressurized fluidized-bed combustor and a cold model bed

Hans Ackeskog, Alf-Erik Almstedt, Victor Zakkay
Chemical Engineering Sciences. Vol. 48 (8), p. 1459-1473
Journal article
1992

Hydrodynamics of a bubbling fluidized bed: influence of pressure and fluidization velocity in terms of drag force

Per Olowson, Alf-Erik Almstedt
Chemical Engineering Sciences. Vol. 47 (2), p. 357-366
Journal article
1991

Influence of pressure on the minimum fluidization velocity

Per Olowson, Alf-Erik Almstedt
Chemical Engineering Sciences. Vol. 46 (2), p. 637-640
Journal article
1990

An investigation of fluidized-bed scaling—capacitance probe measurements in a pressurized fluidized-bed combustor and a cold model bed

Alf-Erik Almstedt, Victor Zakkay
Chemical Engineering Sciences. Vol. 45 (4), p. 1071-1078
Journal article
1990

Influence of pressure and fluidization velocity on the bubble behaviour and gas flow distribution in a fluidized bed

Per Olowson, Alf-Erik Almstedt
Chemical Engineering Sciences. Vol. 45 (7), p. 1733-1741
Journal article
1987

Measurements of the bubble behaviour and the oxygen distribution in a pilot scale pressurized fluidized bed burning coal

Alf-Erik Almstedt, Evert Ljungström
ASME, Proc. 9th Int. Conf. on Fluidized Bed Combustion, Boston. Vol. 1, p. 575-585
Paper in proceedings
1987

Distribution of the gas flow in fluidized beds with a slugging behaviour

Alf-Erik Almstedt
Chemical Engineering Sciences. Vol. 42 (3), p. 581-590
Journal article
1985

Measurements of bubble behaviour in a pressurized fluidized bed burning coal, using capacitance probes - Part II

Alf-Erik Almstedt
DOE, Proc.8th Int. Conf. on Fluidized Bed Combustion, Houston. Vol. 2, p. 865-877
Paper in proceedings
1982

Measurements of bubble behaviour in a pressurized fluidized bed burning coal, using capacitance probes

Alf-Erik Almstedt, Erik Olsson
DOE, Proc. 7th Int. Conf. on Fluidized Bed Combustion, Philadelphia. Vol. 1, p. 89-98
Paper in proceedings

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