Improved pressure-velocity coupling algorithm based on minimization of global residual norm

Journal Article · Tue Jan 01 00:00:00 EST 1991 · Numerical Heat Transfer, Part B: Fundamentals; (United States)

DOI:https://doi.org/10.1080/10407799108944997· OSTI ID:5725568

Chatwani, A U; Turan, A ^[1]

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1. Avco Research Lab., Everett, MA (US)

In this paper an improved pressure velocity coupling algorithm is proposed based on the minimization of the global residual norm. The procedure is applied to SIMPLE and SIMPLEC algorithms to automatically select the pressure underrelaxation factor to minimize the global residual norm at each iteration level. Test computations for three-dimensional turbulent, isothermal flow is a toroidal vortex combustor indicate that velocity underrelaxation factors as high as 0.7 can be used to obtain a converged solution in 300 iterations.

• OSTI ID: 5725568
• Journal Information: Numerical Heat Transfer, Part B: Fundamentals; (United States), Vol. 20:1; ISSN 1040-7790
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
COMBUSTORS
TURBULENT FLOW
ALGORITHMS
CALCULATION METHODS
COMPUTER CALCULATIONS
ISOTHERMAL PROCESSES
PRESSURE GRADIENTS
THREE-DIMENSIONAL CALCULATIONS
VELOCITY
FLUID FLOW
MATHEMATICAL LOGIC
420400* - Engineering- Heat Transfer & Fluid Flow
990200 - Mathematics & Computers