Numerical analysis of three-dimensional(3-D)two-phase reacting flowfield in an annular combustor wity the dump diffuser is developed in arbitrary curvilinear coordi-nates.Combustor performances are estimated by the em...Numerical analysis of three-dimensional(3-D)two-phase reacting flowfield in an annular combustor wity the dump diffuser is developed in arbitrary curvilinear coordi-nates.Combustor performances are estimated by the em-pirical-analytical desing method.Ths influence of three inlet velocity profiles of the prediffuser and two operating conditions on combustor preformance and flow character-istic is predicted.展开更多
Current-carrying coils are basic elements in electromagnetic equipments, for example, in high field magnets from high temperature superconducting wires or tapes. In the assembly of these systems and their current-carr...Current-carrying coils are basic elements in electromagnetic equipments, for example, in high field magnets from high temperature superconducting wires or tapes. In the assembly of these systems and their current-carrying operation, unavoidable mis- alignment and shift from the original position can be induced by disturbances such as the imbalance of magnetic force due to safety problems. For two current-carrying coils with non-coplanar axes, the analytic expression of the magnetic force between the two coils is presented according to the rule of Ampere circulation and the Biot-Savart law. Based on the expression, the dependence of the magnetic force on the size and the relative position of each other is further investigated, and the variation of the magnetic force is obtained with the above parameters.展开更多
Due to special properties of transient species,such as short-lived,unstable,reactive,and even explo-sive,the generation and subsequent characterization is a great challenge for experimental chemists. In our laboratory...Due to special properties of transient species,such as short-lived,unstable,reactive,and even explo-sive,the generation and subsequent characterization is a great challenge for experimental chemists. In our laboratory,systematic researches have been carried out to investigate novel transient species:reactive halogen species(RHS) ,short-lived free radicals,and metastable pseudohalogen compounds,based on the successive technical improvements on the HeI Photoelectron spectroscopy(PES) . In this review,the topic mainly focuses on innovative methods of generating novel transient species,and subsequent geometric and electronic structure characterizations of these species combined with quantum chemical calculations.展开更多
文摘Numerical analysis of three-dimensional(3-D)two-phase reacting flowfield in an annular combustor wity the dump diffuser is developed in arbitrary curvilinear coordi-nates.Combustor performances are estimated by the em-pirical-analytical desing method.Ths influence of three inlet velocity profiles of the prediffuser and two operating conditions on combustor preformance and flow character-istic is predicted.
基金Project supported by the National Natural Science Foundation of China(No.11372096)the Program for Research Fund for the Doctoral Program of Higher Education of China
文摘Current-carrying coils are basic elements in electromagnetic equipments, for example, in high field magnets from high temperature superconducting wires or tapes. In the assembly of these systems and their current-carrying operation, unavoidable mis- alignment and shift from the original position can be induced by disturbances such as the imbalance of magnetic force due to safety problems. For two current-carrying coils with non-coplanar axes, the analytic expression of the magnetic force between the two coils is presented according to the rule of Ampere circulation and the Biot-Savart law. Based on the expression, the dependence of the magnetic force on the size and the relative position of each other is further investigated, and the variation of the magnetic force is obtained with the above parameters.
基金Supported by the National Natural Science Foundation of China (Grant Nos. 2880168,27170306,49392703, 29673049, 29973051, 20073052,50372071,20473094, 20477047, 20577052 and 20673123)the Chinese Academy of Sciences (Hundred Talents Fund)+1 种基金 Knowledge Innovation Program of the Chinese Acad-emy of Sciences (Grant Nos. KJCX2-H2, KJCX2-SW-H8 and KZCX2-YW-205)973 Program, Ministry of Science and Technology of China (Grant No. 2006CB403701)
文摘Due to special properties of transient species,such as short-lived,unstable,reactive,and even explo-sive,the generation and subsequent characterization is a great challenge for experimental chemists. In our laboratory,systematic researches have been carried out to investigate novel transient species:reactive halogen species(RHS) ,short-lived free radicals,and metastable pseudohalogen compounds,based on the successive technical improvements on the HeI Photoelectron spectroscopy(PES) . In this review,the topic mainly focuses on innovative methods of generating novel transient species,and subsequent geometric and electronic structure characterizations of these species combined with quantum chemical calculations.
