A flexible approach for modelling flow in multi-component blade formers

Nordic Pulp and Paper Research Journal

Volumn 21, Issue 1, 2006, Pages 73-81

  Holmqvist, Claes ^a,b   Dahlkild, Anders ^a,b   Norman, Bo ^a,b  

^a ROYAL INSTITUTE OF TECHNOLOGY   (Sweden)

^b INNVENTIA AB   (Sweden)

Author keywords

Blade forming; Computational modules; Drainage pressure; Forming element interaction; Fuid solid interaction

Indexed keywords

COMPUTATIONAL METHODS; COMPUTER SIMULATION; FIBERS; NONLINEAR EQUATIONS; PAPERMAKING;

BLADE FORMING; COMPUTATIONAL MODULES; DRAINAGE PRESSURE; FLUID-SOLID INTERACTION; FORMING ELEMENT INTERACTION;

PAPERMAKING MACHINERY;

BLADE; COMPONENTS; EQUATIONS; FORMING SECTIONS; MODULES; PAPER; PRESSURE; PROCESSES;

EID: 33645686123     PISSN: 02832631     EISSN: None     Source Type: Journal    
DOI: 10.3183/npprj-2006-21-01-p073-081     Document Type: Article

References (20)

1. Acheson, D. (1990): Elementary Fluid Dynamics. Oxford University Press.
2. Dennis, J. E. (1977): Nonlinear least-squares, in The State of the Art in Numerical Analysis: Proceedings of the 2nd Conference on the State of the Art in Numerical Analysis Held at the Univeristy of York, April 12th-15th, 1976, Organized by the Institute of Mathematics and Its Applications (ed. D. A. H. Jacobs), pp. 269-312. London: Academic Press.
3. Green, S. (2000): Modeling suction shoes in twin-wire blade forming: Results, J. Pulp Paper Sci., 26 (2), 53-58.
4. Green, S. I. (1999): Modeling suction shoes in twin-wire blade forming: Theory, Tappi J., 82 (9), 136-142.
5. Holmqvist, C. (2002): Modelling of the pressure distributions in twin-wire blade formers, Licentiate thesis, Royal Institute of Technology, KTH, Stockholm.
6. Levenberg, K. (1944): A method for the solution of certain problems in least squares, Quart. Appl. Math., 2, 164-168.
7. Marquardt, O. (1963): An algorithm for least-squares estimation of nonlinear parameters, SIAM J. Appl. Math., 11, 431-441.
8. Moré, J. J. (1978): The Levenberg-Marquardt algorithm: Implementation and theory, in Numerical Analysis: Proceedings of the Biennial Conference held at Dundee, June 28-July 1, 1977 (ed. G. A.Watson), Lecture Notes in Mathematics, vol. 630, pp. 104-116. Berlin: Springer Verlag.
9. Nigam, M. and Bark, F. (1997): An analytical method to calculate the flow past a blade in twin-wire formers, Tech. Rep., Department of Mechanics, Royal Institute of Technology, KTH, Stockholm.
10. Norman, B. (1979): Principles of twin-wire forming, Svensk Papperstidning, 82 (11), 330-336.
11. Roshanzamir, A., Green, S. and Kerekes, R. (2000a): Two-dimensional simulation of suction shoes in gap formers, J. Pulp Paper Sci., 26 (4), 158-162.
12. Roshanzamir, A., Green, S. and Kerekes, R. (2000b): The effect of non-darcy's law drainage on the hydrodynamics of blade gap formers, in TAPPI Papermakers Conference and Trade Fair, pp. 701-708.
13. Roshanzamir, A., Green, S. I. and Kerekes, R. J. (1998): Two-dimensional simulation of pressure pulses in blade gap formers, J. Pulp Paper Sci., 24 (11), 364-368.
14. Roshanzamir, A., Kerekes, R., Green, S. and Ollivier-Gooch, C. (1999): Hydrodynamic pressure generated by doctoring in blade gap formers, in TAPPI Engineering/Process and Product Quality Conference & Trade Fair, pp. 1181-1189.
15. Sims, D. (1985): Twin wire forming developments, in TAPPI Twin Wire Seminar, pp. 43-51.
16. Wildfong, V., Genco, J., Shands, J. and Bousfield, D. (2000): Filtration mechanics of sheet forming, part I: Apparatus for determination of constant-pressure filtration resistance, J. Pulp Paper Sci., 26 (7), 250-254.
17. Zahrai, S. and Bark, F. (1995): On the fluid mechanics of twin wire blade forming in paper machines, Nord. Pulp Paer Res. J., 10 (4), 245-252.
18. Zahrai, S. and Bark, F. (1996) Analytical and numerical approaches to solve the model equations for the flow of pulp in blade forming process, AIChE Symposium Series, 92 (311), 68-73.
19. Zahrai, S., Bark, F. and Norman, B. (1997): An analysis of blade dewatering in a twin-wire paper machine. J. Pulp Paper Sci., 23 (9), 452-459.
20. Zhao, R. and Kerekes, R. (1995): Pressure distribution between forming fabrics in blade gap formers: Thin blades. J. Pulp Paper Sci., 21 (3), 97-103.