Pengukuran Koefisien Aerodinamis Model-Model Jembatan Bentang Panjang

The objective of this research is to measure aerodynamic coefficients of long-span bridge deck models. Four models with different wind nose (fairings) will be tested using open loop wind tunnel. These replicas are made from glass fiber as major material. Flow-field dynamic similarity is maintained through nondimensional number such as Reynolds number. Determination of aerodynamic coefficients was carried out using balance method whereas aerodynamics forces are measured by strain gages based balance apparatus. The result is presented on graphics of lift coefficient (CL), aerodynamic moment coefficient (CM) and coefficient of drag (CD) as function of angle of attack (a).