Akihiko Nakayama

TL;DR: In this article, the mean and fluctuating velocities of two airfoil models at a low Mach number were measured with pressure and hot-wire probes in the attached boundary layers and wakes.

TL;DR: In this article, two simulations were conducted to determine what caused the failure of the Utatsu concrete girder highway bridge in Minamisanriku, Miyagi Prefecture during the 2011 Great East Japan Tsunami, where the bridge decks were not pushed off their piers but rather were flipped off the landward side of the bridge piers after being deeply submerged by the surging tsunami.

TL;DR: In this article, the instantaneous surface pressure distributions on rectangular cylinders of length to height ratio (B/D) of 1.0, 2.5 and 3.0 in smooth nonturbulent and homogeneous turbulent flows were made and the data were analyzed by phase averaging and spectral analysis.

TL;DR: In this article, detailed measurements of pressure distributions, mean velocity profiles and Reynolds stresses were made in the thick axisymmetric turbulent boundary layer near the tail of a body of revolution and the results indicated a number of important differences between the behaviour of a thick and a thin boundary layer.

TL;DR: In this paper, the mean flow and turbulence quantities around a multielement airfoil model have been made using pressure and hot-wire probes, and the results obtained in two test cases at the chord Reynolds number of 3 million and the freestream Mach number of 0.2 show a number of features of the complex flows that are important in accurate modeling of these flows by numerical methods.