Study of Connecting Cone Influence on Flow Characteristics in Monolith
The theory of Non-Uniform Rational B-Spline(NURBS)was applied on the design of streamlined connecting cone,the influence of the cone on the flow characteristics was studied.The experiments of pressure drop and gas flow characteristics(such as the velocity distribution,flow uniformity)were carried out,by setting different inlet velocities,the pressure drop and the velocity distribution after the outlet surface of the monolith were obtained.The results show that the NURBS cone has better flow uniformity,the pressure drop of the NURBS cone can be reduced by up to 18％.Meanwhile,the simulation model was established and the flow field inside the monolith was analyzed by using the computational fluid software Fluent 18.0.It was found that the NURBS cone can reduce the inner vortex of the cone,and allow more gas flow to pass through the boundary of the monolith,which improves the flow uniformity and thus reduce the pressure drop.
NETL
NSTL
万方数据
