利用热线风速仪对压电驱动自耦合射流激发器在不同的电压和激励频率下所形成的射流速度分布进行了测试。研究发现,自耦合射流存在着340和1 000 H z两个最佳激励频率;自耦合射流在喷口长轴方向临近喷口的位置呈马鞍状分布,随距离增加而...利用热线风速仪对压电驱动自耦合射流激发器在不同的电压和激励频率下所形成的射流速度分布进行了测试。研究发现,自耦合射流存在着340和1 000 H z两个最佳激励频率;自耦合射流在喷口长轴方向临近喷口的位置呈马鞍状分布,随距离增加而接近于稳态射流;在喷口短轴方向速度呈对称的单峰形状,和常规射流一样具有自相似性;在喷口法线方向速度呈先上升后下降的趋势,最大值出现在距离喷口约10倍狭缝宽度的位置上。展开更多
In this research, liquid sloshing behavior in a 2-D rectangular tank was simulated using ANSYS-FLUENT software subject to single or multiple-coupled external excitations （such as sway coupled with roll, and sway and ...In this research, liquid sloshing behavior in a 2-D rectangular tank was simulated using ANSYS-FLUENT software subject to single or multiple-coupled external excitations （such as sway coupled with roll, and sway and roll coupled with heave）. The volume of fluid （VOF） method was used to track the free surface of sloshing. External excitation was imposed through the motion of the tank by using the dynamic mesh technique. The study shows that if the tank is subjected to multiple coupled excitations and resonant excitation frequencies, liquid sloshing will become violent and sloshing loads, including impact on the top wall, will be intensified.展开更多
A scheme for one-step preparation of atomic GHZ states in two directly coupled cavities via virtual excitations is proposed.In the whole procedure,the information is carried only in two ground states of A-type atoms, ...A scheme for one-step preparation of atomic GHZ states in two directly coupled cavities via virtual excitations is proposed.In the whole procedure,the information is carried only in two ground states of A-type atoms, while the excited states of atoms and cavity modes are virtually excited,leading the system to be insensitive to atomic spontaneous emission and photon loss.展开更多
We study the statistics of the emitted filed from Rydberg atom confined inside a microcavity and interacting with a pump laser in the strong coupling regime. We explore the manifestation of the antibunching in connect...We study the statistics of the emitted filed from Rydberg atom confined inside a microcavity and interacting with a pump laser in the strong coupling regime. We explore the manifestation of the antibunching in connection with the internal system parameters.展开更多
文摘利用热线风速仪对压电驱动自耦合射流激发器在不同的电压和激励频率下所形成的射流速度分布进行了测试。研究发现,自耦合射流存在着340和1 000 H z两个最佳激励频率;自耦合射流在喷口长轴方向临近喷口的位置呈马鞍状分布,随距离增加而接近于稳态射流;在喷口短轴方向速度呈对称的单峰形状,和常规射流一样具有自相似性;在喷口法线方向速度呈先上升后下降的趋势,最大值出现在距离喷口约10倍狭缝宽度的位置上。
基金Supported by the National Natural Science Foundation of China under Grant No.30770394.
文摘In this research, liquid sloshing behavior in a 2-D rectangular tank was simulated using ANSYS-FLUENT software subject to single or multiple-coupled external excitations （such as sway coupled with roll, and sway and roll coupled with heave）. The volume of fluid （VOF） method was used to track the free surface of sloshing. External excitation was imposed through the motion of the tank by using the dynamic mesh technique. The study shows that if the tank is subjected to multiple coupled excitations and resonant excitation frequencies, liquid sloshing will become violent and sloshing loads, including impact on the top wall, will be intensified.
基金Supported in part by the Natural Science Foundation of China under Grant Nos.10974125,60821004,60878059in part by the Educational Committee of Fujian Province under Grant No.JA09041in part by Fujian Normal University under Grant No.2008100220
文摘A scheme for one-step preparation of atomic GHZ states in two directly coupled cavities via virtual excitations is proposed.In the whole procedure,the information is carried only in two ground states of A-type atoms, while the excited states of atoms and cavity modes are virtually excited,leading the system to be insensitive to atomic spontaneous emission and photon loss.
文摘We study the statistics of the emitted filed from Rydberg atom confined inside a microcavity and interacting with a pump laser in the strong coupling regime. We explore the manifestation of the antibunching in connection with the internal system parameters.
