Decomposition 2.6.3 Planes of constant index sums 2.7 Smoothing 3. LIQUID SLOSHING INSIDE SPHERICAL CONTAINERS ... 3.1 Effects of vectorization 3.2 Code optimization 3.3 Contact line boundary condition 3.4 Free-surface motion: surface method 'B' 3.5 Results for the calculation of the orbital spin-up of a spherical tank. 67 4. VERIFICATION OF TRANSIENT ACCURACY OF THE SURFACE-FITTING APPROACH 87 4.1 The three-dimensional broken dam problem 87 4.2 Free-surface treatment: surface method 'C 88 4.3 Discretization of the momentum equations 95 4.4 Results for the three-dimensional broken dam calculations 99 iv 5. EFFECTS OF LOW GRAVITY 108 5.1 Discussion and Results 113 5.2 Calculations of zero gravity flows 118 6. FLUID-STRUCTURE INTERACTION 122

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Structures more than 40 m are usually termed as high rise structures. It is difficult to predict the flow of wind around structures without the use of computational fluid dynamics software or wind tunnel. These high rise structures are subjected to stronger winds that can cause them to sway. So the predictions of aerodynamic loads acting on tall buildings are very important. This study aims to identify the characteristics of wind flow such high rise structures  by predicting flow variables such as pressure, velocity and impacting stress etc using Ansys Fluent 18.1. The main purpose of this project is to find out : pressure around the building and velocity of wind around the building.