摘要
以不可压流体的连续方程和动量方程为基础,将分支管流速作为未知量,建立了推进算法的基本方程,提出并联管组中单相流体的水动力推进算法。在推进计算每一步中,只需要求解关于分支管流速的代数方程,逐管推进并迭代至满足给定的边界条件。计算过程简单,易于收敛。计算结果表明,这是一种简捷有效的并联管组水动力新算法。
The basic equations of the step-marching calculation method are derived on the basis of the equation of continuity and the momentum equation of incompressible fluids and taking the velocities in the branch pipes as unknowns. The step-marching hydro-dynamic calculation method for single phase flow in parallel connected manifolds is herewith presented. At each calculation step it is only necessary to solve the algebraic equations that involve the flow velocities in the branch-pipes, thus iterating until all prescribed boundary conditions are satisfied. The calculation procedure is simple and quick in convergence. Calculation results show that this is a new, simple and effective hydro-dynamic calculation method for parallel connected manifolds.
出处
《动力工程》
EI
CSCD
北大核心
2005年第1期40-43,共4页
Power Engineering
关键词
水动力学
锅炉
推进算法
并联管组
集箱
hydro-dynamics
boiler
step-marching calculation
manifold
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