Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Southern Storm Centres and Ocean Wave Spectra (1966)
    [s.l.] : Nature Publishing Group
    Nature 211 (1966), S. 287-288 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. Power spectra from Macquarie Island, March 13, 1965.------ 0000 h E.A.S.T.;-----------, 1200 h E.A.S.T.;------, 2400 h E.A.S.T. Fig. 2. Power spectra from Macquarie Island, March 13, 1965, after high-pass filtering.---------, 0000 hE.A.S.T. ;--------, 1200 h E.A.S.T. ;-----, 2400 h ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/211287a0
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Finite difference methods for solving the two-dimensional advection-diffusion equation (1989)
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 9 (1989), S. 75-98 
    Details
    ISSN: 0271-2091
    Keywords: 2D Advection-diffusion equation ; Finite difference method ; Weighted discretization ; Modified equivalent PDE approach ; Stability ; Accuracy ; Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Using weighted discretization with the modified equivalent partial differential equation approach, several accurate finite difference methods are developed to solve the two-dimensional advection-diffusion equation following the success of its application to the one-dimensional case. These new methods are compared with the conventional finite difference methods in terms of stability and accuracy. The new methods are more accurate and often more stable than the conventional schemes.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fld.1650090107
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    A time-splitting finite difference method for two-dimensional diffusion with an integral condition (1994)
    Chichester : Wiley-Blackwell
    Communications in Numerical Methods in Engineering 10 (1994), S. 649-660 
    Details
    ISSN: 1069-8299
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A new fourth-order locally one-dimensional (LOD) finite difference scheme based upon the Noye-Hayman method for one-dimensional diffusion is used to solve a two-dimensional time-dependent diffusion equation with an integral condition replacing one boundary condition. Numerical testing shows this gives better results than a locally one-dimensional scheme based on the classical forward-time centred-space (FTCS) method for one-dimensional diffusion except when the diffusion number is 1/6 and the methods are identical. Results from some numerical experiments are presented.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cnm.1640100808
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Numerical study of turbulent blood flow through a caged-ball prosthetic heart valve using a boundary-fitted co-ordinate system (1987)
    Springer
    Medical & biological engineering & computing 25 (1987), S. 173-180 
    Details
    ISSN: 1741-0444
    Keywords: Boundary-fitted co-ordinates ; Finite-difference methods ; Prosthetic heart-valve ; Turbulent flow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract A numerical model is developed for steady turbulent flow through a fully open Starr-Edwards caged-ball prosthetic heart valve in the aortic position. An orthogonal boundary-fitted co-ordinate system is generated for the axisymmetric flow domain in the vicinity of the valve. The boundary lines follow the left ventricular wall, an idealised sinus, the aortic wall, and the ball occluder. The governing partial differentiation equations, written in a stream function-vorticity formulation, are recast into their curvilinear equivalents before being discretised into finite-difference equations. The equations are then solved iteratively. Regions of separated flow and elevated fluid stress are identified at several flow rates. Analysis of the numerical solutions reveals a simple power-law relationship between the computed turbulent shear stress and the steady flow rate at important flow field locations. The maximum turbulent shear stress occurs consistently near the sewing-ring tip. However, the peak turbulent shear stress in the sinus separation zone is observed to increase significantly with higher flow rates, exceeding values in many other regions. The numerical solutions compare satisfactorily with experimental measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02442847
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    A third-order semi-implicit finite difference method for solving the one-dimensional convection-diffusion equation (1988)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 26 (1988), S. 1615-1629 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A third-order semi-implicit five-point finite difference method is developed to solve the one-dimensional convection-diffusion equation, using the ‘weighted’ modified equation method. It is shown to have a large stability region, to be very accurate and computationally fast.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620260711
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    An accurate five-point implicit finite difference method for solving the one-dimensional wave equation (1989)
    New York, NY [u.a.] : Wiley-Blackwell
    Communications in Applied Numerical Methods 5 (1989), S. 247-252 
    Details
    ISSN: 0748-8025
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The ‘modified equaivalent equation’ approach has been used to derive a highly accurate implicit finite difference method (FDM) for solving the classical wave equation in one space dimension, using a computational stencil extending over five spatial grid points. This approach involves minimising the error terms of the modified equivalent partial differential equation which corresponds to the finite difference equation (FDE).
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cnm.1630050405
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    A compact unconditionally stable finite-difference method for transient one-dimensional advection-diffusion (1991)
    New York, NY [u.a.] : Wiley-Blackwell
    Communications in Applied Numerical Methods 7 (1991), S. 501-512 
    Details
    ISSN: 0748-8025
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A new compact second-order finite-difference method for solving the time-dependent one-dimensional constant-coefficient advection - diffusion equation is developed. It involves a spread of only two grid points in space and two levels in time. It may be evaluated in an explicit marching manner and requires the availability of only upstream boundary values. It is unconditionally stable and has the property of giving ‘non-negative’ values for a large range of Courant and diffusion numbers. For all grid Reynolds numbers greater than 2 it is shown to be more accurate than commonly used second-order methods, all of which involve a spread of three grid points in space.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cnm.1630070702
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    An accurate explicit finite diference technique for solving the one-dimensional wave equation (1986)
    New York, NY [u.a.] : Wiley-Blackwell
    Communications in Applied Numerical Methods 2 (1986), S. 557-561 
    Details
    ISSN: 0748-8025
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A highly accurate finite difference method is developed for the classical wave equation in one spatial dimension. The derivation uses the ‘modified equaiton’ approach, whereby the partial differential equation actually solved by the finite difference equation is determined. By investigating the largest error terms, the new method is compared with the standard explicit method and a method developed by Twizell.2 Theoretical conclusions have been verified by using the methods to solve a simple problem for which an exact solution is available.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cnm.1630020603
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Five-point FTCS finite-difference methods for heat conduction (1989)
    New York, NY [u.a.] : Wiley-Blackwell
    Communications in Applied Numerical Methods 5 (1989), S. 337-345 
    Details
    ISSN: 0748-8025
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A family of five-point second-order forward-time centrred-space (FTCS) explicit finite-difference equations for solving the one-dimensional heat conduction (diffusion) equation with constant coefficients and Dirichlet boundary conditions is described. Some members have stability ranges larger than that of the standard three-point FTCS equation, others are more accurate, and some are both more accurate and more stable. Values at grid points adjacent to boundaries are computed by means of an explicit procedure with stability and accuracy matching that of the equation used at interior grid points.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cnm.1630050507
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    A new third-order finite-difference method for transient one-dimensional advection - diffusion (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Communications in Applied Numerical Methods 6 (1990), S. 279-288 
    Details
    ISSN: 0748-8025
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The accuracy of some first and second-order methods for solving the time-dependent one-dimensional constant-coefficient advection-diffusion equation are compared theoretically on the basis of the dominant error terms in their modified equivalent partial differential equations. A new very stable three-point (in space) third-order implicit method is then developed by combining two second-order methods. The accuracies of the various methods are then compared by means of numerical tests.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cnm.1630060405
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...