The general property of zonally symmetric stability of quasi-homogeneous and incompressible rotating ocean can be determined by a nondimensional parameter R. which is similar to the Richardson number in Howard's p...The general property of zonally symmetric stability of quasi-homogeneous and incompressible rotating ocean can be determined by a nondimensional parameter R. which is similar to the Richardson number in Howard's paper. The results indicate that the rotating effect leads to stabilize the basic flows and the horizontal shear effect leads to destabilize the basic flows.In addition, the most unstable growth rate is obtained and,the semicircle and semiellipse theorem about the distributions of the unstable phase velocity are given in this paper.展开更多
Mathematical modeling of heat exchange in air in pipes with turbulators with d/D=0.95÷0.90 and t/D=0.25÷1.00,as well as in rough pipes,with large Reynolds numbers(Re=106).The solution of the heat exchange pr...Mathematical modeling of heat exchange in air in pipes with turbulators with d/D=0.95÷0.90 and t/D=0.25÷1.00,as well as in rough pipes,with large Reynolds numbers(Re=106).The solution of the heat exchange problem for semicircular cross-section flow turbulizers based on multi-block computing technologies based on the factorized Reynolds equations(closed using the Menter shear stress transfer model)and the energy equation(on multi-scale intersecting structured grids)was considered.This method was previously successfully applied and verified by experiment in[1-4]for lower Reynolds numbers.The article continues the computational studies initiated in[1-4,25-27].展开更多
文摘The general property of zonally symmetric stability of quasi-homogeneous and incompressible rotating ocean can be determined by a nondimensional parameter R. which is similar to the Richardson number in Howard's paper. The results indicate that the rotating effect leads to stabilize the basic flows and the horizontal shear effect leads to destabilize the basic flows.In addition, the most unstable growth rate is obtained and,the semicircle and semiellipse theorem about the distributions of the unstable phase velocity are given in this paper.
文摘Mathematical modeling of heat exchange in air in pipes with turbulators with d/D=0.95÷0.90 and t/D=0.25÷1.00,as well as in rough pipes,with large Reynolds numbers(Re=106).The solution of the heat exchange problem for semicircular cross-section flow turbulizers based on multi-block computing technologies based on the factorized Reynolds equations(closed using the Menter shear stress transfer model)and the energy equation(on multi-scale intersecting structured grids)was considered.This method was previously successfully applied and verified by experiment in[1-4]for lower Reynolds numbers.The article continues the computational studies initiated in[1-4,25-27].
