Analysis of a Finite Element Method--PDE/PROTRANSpringer-Verlag, 1985 - 154 pagine |
Dall'interno del libro
Risultati 1-3 di 6
Pagina 40
... D3EST ( x , y ) 2/3 dxdy is selected for division . It is divided by a line from the midpoint of its longest side to the opposite vertex . ( The longest side is chosen to prevent the generation of very small angles -- recall that there ...
... D3EST ( x , y ) 2/3 dxdy is selected for division . It is divided by a line from the midpoint of its longest side to the opposite vertex . ( The longest side is chosen to prevent the generation of very small angles -- recall that there ...
Pagina 43
... ( D3EST = 1 ) error ( D3EST = r − 1.5 ) error ( D3EST = r - 2.5 ) 20 .00303191 .00110298 .00196399 40 .00170448 .00024073 .00082191 80 .00057190 .00010450 .00017531 160 .00032371 .00003260 .00008750 320 .00015068 .00001315 .00002800 ...
... ( D3EST = 1 ) error ( D3EST = r − 1.5 ) error ( D3EST = r - 2.5 ) 20 .00303191 .00110298 .00196399 40 .00170448 .00024073 .00082191 80 .00057190 .00010450 .00017531 160 .00032371 .00003260 .00008750 320 .00015068 .00001315 .00002800 ...
Pagina 139
... d3est d3est is a function of X and Y which controls the grading of the triangular grid in the final triangulation . The initial triangulation is refined with the goal of distributing d3est ( X , Y ) ** ( 2/3 ) * A ( j ) evenly over the ...
... d3est d3est is a function of X and Y which controls the grading of the triangular grid in the final triangulation . The initial triangulation is refined with the goal of distributing d3est ( X , Y ) ** ( 2/3 ) * A ( j ) evenly over the ...
Sommario
Partial Differential Equation Applications | 1 |
Elliptic ProblemsForming the Algebraic Equations | 22 |
Elliptic ProblemsSolving the Algebraic Equations | 50 |
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Parole e frasi comuni
A.UX algorithm approximating assumed backward difference method band solver basis functions boundary conditions BOUNDARY FORCE calculated components conjugate gradient method convergence Crank-Nicolson Crank-Nicolson method curved D3EST Default defined in GLOBAL derivatives diagonal dimensional discretization discretization error DISPLACEMENTS DOUBLE PRECISION DOUBLE PRECISION Expression dxdy eigenfunction eigenvalue problem elastic error Expression involving constants ƏR₁ Figure filename finite difference method finite element formula FORTRAN frontal method frontal solver Galerkin grid hyperbolic problems iarcI initial triangulation integration inverse power method Jacobian matrix keyword Lanczos Iteration Lanczos method linear system Newton iteration Newton's method nonlinear nonzero normalized triangle NOUPDATE output PDE/PROTRAN PDE2D piecewise polynomial plot Pn+1 positive definite PRECISION Expression involving PRECISION MATRIX quadratic quartic elements REAL or DOUBLE satisfies Section shown solution solve specified step Structure symmetric updated UPRINT values variables defined vector velocity VERTICES VSOL XGRID xk+1 zero
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