Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Koichi Sada"'
Publikováno v:
Asian Journal of Atmospheric Environment, Vol 2, Iss 1, Pp 1-13 (2008)
A numerical simulation method has been developed to predict atmospheric flow and stack gas diffusion using a calculation domain of several km around a stack under complex terrain conditions containing buildings. The turbulence closure technique using
Externí odkaz:
https://doaj.org/article/82749cf4371443cbacb7688b2a029efd
Publikováno v:
Atmosphere, Vol 7, Iss 4, p 50 (2016)
Wind-tunnel experiments were conducted to evaluate the effect of additional structure (building, sea wall and banking) on the effective stack height, which is usually used in safety analyses of nuclear power facilities in Japan. The effective stack h
Externí odkaz:
https://doaj.org/article/28387fd011ca44caac5e7b8ea306f09f
Autor:
Hiroki ONO, Koichi SADA
Publikováno v:
Transactions of the Atomic Energy Society of Japan. 21:127-143
Publikováno v:
Boundary-Layer Meteorology. 141:35-51
Large-scale turbulent motions enhancing horizontal gas spread in an atmospheric boundary layer are simulated in a wind-tunnel experiment. The large-scale turbulent motions can be generated using an active grid installed at the front of the test secti
Publikováno v:
Transactions of the Japan Society of Mechanical Engineers Series B. 75:93-100
Publikováno v:
JSME International Journal Series B. 49:48-59
A numerical simulation method has been developed to predict atmospheric flow and stack gas diffusion under a neutral stratification condition, considering the buildings and complex terrain located near and relatively far from a stack, respectively. T
Autor:
Yoichi Ichikawa, Koichi Sada
Publikováno v:
Journal of the Air & Waste Management Association. 52:313-323
An atmospheric dispersion model was developed for the environmental impact assessment of thermal power plants in Japan, and a method for evaluating topographical effects using this model was proposed. The atmospheric dispersion model consists of an a
Publikováno v:
Doboku Gakkai Ronbunshu. 2000:61-70
ラグランジュ型粒子モデルによって, 排煙上昇過程を含む大気拡散の予測を行った. 本モデルの支配方程式は, 粒子のランダムな運動を表す確率微分方程式で, 鉛直成分の式には浮力によ
Publikováno v:
Wind Engineers, JAWE. 1998:13-18
A numerical simulation method using turbulence closure techniques and Lagrangian particle dispersion model has been developed to predict atmospheric flows and stack gas diffusion under the complex terrain and non neutral stability conditions. Calcula
Autor:
Koichi Sada
Publikováno v:
JSME International Journal Series B. 39:19-27
The temperature of a flat wind tunnel floor was increased almost uniformly to 80°C to simulate an unstable atmospheric boundary layer. The velocity, temperature and surface temperature heat flux on the wind tunnel floor were measured using a laser D