煤烧圆家重点实验宝 8I. Basic Equations 1. Reynolds Transport Principle 1)Two treatment methods a) Euler method-variation of defined space point b) Lagrange method-variation of defined fluid element Relation(for a fluid element) do ao ao +1 dt at National Lab, of Coal Combustion. HUST Wuhan 430074 P R CHINA E-mail:pcbnlcc@hust.edu.cnNL CC National Lab. of Coal Combustion, HUST Wuhan 430074, P. R. CHINA E-mail: pcbnlcc@hust.edu.cn §II. Basic Equations 1. Reynolds Transport Principle 1) Two treatment methods a) Euler method-variation of defined space point b) Lagrange method-variation of defined fluid element Relation (for a fluid element) j j x v dt t d   +   =   