TY  - EJOU
AU  - Zheng, K.H.  
AU  - Ma, H.W.  

TI  - Combinations of the Boundary Knot Method with Analogy Equation Method for Nonlinear Problems
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2012
VL  - 87
IS  - 3
SN  - 1526-1506

AB  - Based on the analogy equation method and method of particular solutions, we propose a combined boundary knot method (CBKM) for solving nonlinear problems in this paper. The principle of the CBKM lies in that the analogy equation method is used to convert the nonlinear governing equation into a corresponding linear inhomogeneous one under the same boundary conditions. Then the method of particular solutions and boundary knot method are, respectively, used to construct the particular and homogeneous solutions for the newly-introduced inhomogeneous equation. Finally, the field function and its derivatives involved in the nonlinear governing equation are expressed via the unknown coefficients, which are established by collocating the equations at discrete knots on the physical domain. A classical nonlinear problem, among numerous examples, is chosen to validate the convergence, stability and accuracy of the proposed method.
KW  - Boundary knot method
KW  -  analogy equation method
KW  -  nonlinear
KW  -  radial basis function

DO  - 10.3970/cmes.2012.087.225