2 citations · 4 across the 4 of their papers we have counts for
4 papers
A plane wave method based on approximate wave directions for two dimensional Helmholtz equations with large wave numbers
Qiya Hu, Zezhong Wang
In this paper we present and analyse a high accuracy method for computing wave directions defined in the geometrical optics ansatz of Helmholtz equation with variable wave number.…
A geometric optics ansatz-based plane wave method for two dimensional Helmholtz equations with variable wave numbers
Qiya Hu, Zezhong Wang
In this paper we develop a plane wave type method for discretization of homogeneous Helmholtz equations with variable wave numbers. In the proposed method, local basis functions (o…
Shock Wave in Leader Discharge Observed Using Mach-Zehnder Interferometry
Yingzhe Cui, Chijie Zhuang, Xuan Zhou +3
A leader is an electric discharge mechanism in long-air-gap discharges. In this work, we report the shock wave phenomenon in an air-gap leader discharge observed using a Mach-Zehnd…
The dynamic expansion of positive leaders observed using Mach-Zehnder interferometry in a 1-m air gap
Yingzhe Cui, Rong Zeng, 1Chijie Zhuang +3
The leader plays an important role in long-air-gap discharges. In this paper, Mach-Zehnder interferometry and a high-speed video camera were used to observe the dynamic expansion p…