Object oriented implementation of adaptive mesh refinement algorithms

Conference · Wed Mar 31 23:00:00 EST 1993

OSTI ID:6557709

Crutchfield, W Y; Welcome, M L

We describe C++ classes that simplify development of Adaptive Mesh Refinement (AMR) algorithms. The classes divide into two groups, generic classes that are broadly useful in adaptive algorithms, and application-specific classes that are the basis for our AMR algorithm. We employ two languages, with C++ responsible for the high-level data structures, and FORTRAN responsible for low-level numerics. The C++ implementation is as fast as the original FORTRAN implementation. Use of inheritance has allowed us to extend the original AMR algorithm to other problems with greatly reduced development time.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6557709
• Report Number(s): UCRL-JC-113502; CONF-9304114--1; ON: DE93011885
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
99 GENERAL AND MISCELLANEOUS
990200* -- Mathematics & Computers
ALGORITHMS
CALCULATION METHODS
DIFFERENTIAL EQUATIONS
EQUATIONS
FINITE DIFFERENCE METHOD
ITERATIVE METHODS
MATHEMATICAL LOGIC
MESH GENERATION
NAVIER-STOKES EQUATIONS
NUMERICAL SOLUTION
PARTIAL DIFFERENTIAL EQUATIONS
PROGRAMMING LANGUAGES