75 citations · 219 across the 8 of their papers we have counts for
8 papers
Time-resolved phase-lock pressure-sensitive paint measurement of trailing edge noise dynamics
M. Imai, K. Konishi, K. Ogura +2
Pressure-sensitive paint (PSP) was applied to the surface of a NACA0012 airfoil to investigate pressure fluctuations associated with trailing edge (TE) noise under low-velocity flo…
CFD analysis on the performance of a coaxial rotor with lift offset at high advance ratios
Kaito Hayami, Hideaki Sugawara, Takumi Yumino +2
The aerodynamic performance of an isolated coaxial rotor in forward flight is analyzed by a high-fidelity computational fluid dynamics (CFD) approach. The analysis focuses on the h…
A Coupled CFD/Trim Analysis of Coaxial Rotors
Hideaki Sugawara, Yasutada Tanabe, Masaharu Kameda
A numerical simulation method of computational fluid dynamics (CFD) coupling with a trim analysis for coaxial rotor systems is described in this paper. The trim analysis is impleme…
Resolvent analysis on the origin of two-dimensional transonic buffet
Yoimi Kojima, Chi-An Yeh, Kunihiko Taira +1
Resolvent analysis is performed to identify the origin of two-dimensional transonic buffet over an airfoil. The base flow for the resolvent analysis is the time-averaged flow over…
Optical-flow-based background-oriented schlieren technique for measuring a laser-induced underwater shock wave
Keisuke Hayasaka, Yoshiyuki Tagawa, Tianshu Liu +1
The background-oriented schlieren (BOS) technique with the physics-based optical flow method (OF-BOS) is developed for measuring the pressure field of a laser-induced underwater sh…
On pressure impulse of a laser-induced underwater shock wave
Yoshiyuki Tagawa, Shota Yamamoto, Keisuke Hayasaka +1
We experimentally examine a laser-induced underwater shock wave with a special attention to pressure impulse, the time integral of pressure evolution. %total pressure variation ass…
Application of background-oriented schlieren (BOS) technique to a laser-induced underwater shock wave
Shota Yamamoto, Yoshiyuki Tagawa, Masaharu Kameda
We build an ultra-high-speed imaging system based on the background-oriented schlieren (BOS) technique in order to capture a laser-induced underwater shock wave. This BOS technique…
A focused liquid jet formed by a water hammer in a test tube
Akihito Kiyama, Yoshiyuki Tagawa, Keita Ando +1
We investigate motion of a gas-liquid interface in a test tube induced by a large acceleration via impulsive force. We conduct simple experiments in which the tube partially filled…