1998 Fiscal Year Final Research Report Summary

Study on flow past structures and its aerodynamic characteristics

Research Project

Project/Area Number	09650640
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Building structures/materials
Research Institution	NIHON UNIVERSITY
Principal Investigator	KONDO Norio Nihon University College of Science and technology, Assistant Professor, 理工学部, 専任講師 (90178418)
Project Period (FY)	1997 – 1998
Keywords	square cylindens / Navier-Stokes eqs. / Numerical Computation / FEM / third-order upwind scheme
Research Abstract	Many structures have been constructed in urban spaces. Air currents around the structures are complicated flows. Therefore, the purpose of this research is to show aerodynamic characteristics of square cylinders arranged vertically and horizontally to uniform flows. Models of structures considered in computations are two square cylinders. It is well known that the drag force of two square cylinders arranged vertically to the uniform flow changes suddenly when a gap size between the square cylinders equals to 3. The phenomenon of the drag force is obtained in our numerical computation. Flow profiles around square cylinders arranged horizontally to uniform flows become unsymmetrical ones.

(6 results)