Alternative formulations of the Laplace transform boundary element (LTBE) numerical method for the solution of diffusion-type equations

Conference · Sun Mar 01 00:00:00 EST 1992

OSTI ID:10185011

Moridis, G

The Laplace Transform Boundary Element (LTBE) method is a recently introduced numerical method, and has been used for the solution of diffusion-type PDEs. It completely eliminates the time dependency of the problem and the need for time discretization, yielding solutions numerical in space and semi-analytical in time. In LTBE solutions are obtained in the Laplace spare, and are then inverted numerically to yield the solution in time. The Stehfest and the DeHoog formulations of LTBE, based on two different inversion algorithms, are investigated. Both formulations produce comparable, extremely accurate solutions.

• Research Organization: Lawrence Berkeley Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 10185011
• Report Number(s): LBL-32021; CONF-920664-2; ON: DE92041172
• Resource Relation: Conference: 7. international conference on boundary element technology,Albuquerque, NM (United States),3-5 Jun 1992; Other Information: PBD: Mar 1992
• Country of Publication: United States
• Language: English

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