Research ArticleWind & Structural Engineering
Neeraj Chandra ()·Pratik Kumar Singh ()·Vishal Kadian ()·Suraj Rai ()
Tall building is the growing pattern of cities, these buildings are highly vulnerable to wind loads. Wind load effects on the high-rise building can be found using wind tunnel testing and CFD tools. Wind tunnel facilities are limited all around the world, so CFD tools can be incorporated. In this study, ANSYS CFX is used to investigate the effects of wind on different shapes of high-rise buildings. The results of numerical simulation are compared with the international standards of various countries. Streamline patterns and pressure contours on different faces are discussed in this paper. It is found that building shape and size are having a direct effect on the pressure distribution on various surfaces of the building model. Windward face pressure will always be positive in nature. In this study, the comparison is presented for the variation in the cross-sectional shape of the building model. For this purpose Model C and Model I are having considerable variations and Model X is considered for validation purposes only. It is well established that the results are within the allowable limit. This paper aims to discuss these wind- generated effects in the tall building model.
Research ArticleWind & Structural Engineering
Asmita Sharma ()·Aryan Singh Verma ()·Aaditya Tanwar ()·Aasheesh Sharma ()·S K Verma ()·Parmit Kumar Choudhary ()
The rapid expansion of cities and increasing population means that land is limited and what land is available is shaped in an erratic manner, while its demand is increasing day by day. Therefore, to cope with this increasing demand and to achieve maximum utilization of resources, tall buildings are being built. However, these buildings are extremely vulnerable to lateral loads, particularly wind loads.To ensure the safety of these buildings, wind tunnel studies are used to examine the effects of wind loads. To combat the issue of shortage of wind tunnel facilities in the world, numerical analysis is used instead. Thus, this project aims to analyse the impact of wind effects on high-rise buildings of different shapes with the help of CFD, by making use of ANSYS. The wind effects have been assessed by obtaining the velocity profile and turbulent profile, pressure contours for different faces of the building, and velocity streamlines for the plan and elevation of the building. increase in the construction of various 1.Intoduction models of tall buildings across the world
Research ArticleCivil Engineering
Abhishek Mittal ()·Aman Kumar ()·Parmit Kumar Choudhary ()
This study analyses an open channel flow’s transition due to contraction of width. The flow is initially subcritical (i.e. Fr < 1). Comparison between theoretical and experimental study is done to analyse the minimum contracted width such that if the width of the downstream section is more than this minimum contracted width flow can take place without any change in upstream specific energy. The abbreviated term suggests that the width of the open channel decreases and that leads to changes in the flow values of the differentiation from the others produced above. The dimensions of many water streams, which satisfy proper hydraulic conditions, may not be compatible with the designed dimensions of an irrigation work that needs to be constructed in some locations. The design requirements of such irrigation works may involve a contraction in the channel width in the required location. Then 2 models are prepared on ANSYS fluent one having width 0.190m which is more than the minimum contracted width and other having width of 0.1m which is less than minimum contracted width. Then the results are presented in the form of contours of volume fraction on the wall of model which validates the theoretical changes in upstream and downstream depths of flow in each case.
Froude’s numberAnsys fluentFlow transitionupstreamdownstream
Research ArticleWind & Structural Engineering
Vishal Kadian ()·Suraj Rai ()·Rishab Aggarwal ()·Raghav Siakri ()
Building construction in India has been on rise since last two decades. More recently construction of tall buildings ranging from 10 to 50 stories have been proposed in many cities. For these buildings, wind analysis is as important as earthquake analysis, since in taller buildings, wind loads are dominant than earthquake loads at greater heights. There is a rising demand for tall structures to fulfil the occupancy requirements in congested metropolitan areas. In India, wind analysis is done according to IS 875(Part III):2015. generally engineers rely on wind tunnel experiments to understand the behaviour of winds on structures. However, for arriving at the best orientation several tests have to be conducted which is a tedious job. In this project, a necessity to adopt a different approach such as Computational Fluid Dynamics (CFD) simulation is proposed. The objective of this project is to study the effect of wind on a statement design model which is computed using AutoCAD 3D and ANSYS CFX (using CFD methodology). The modelling of building is done on AutoCAD (3D Modelling) software. The building is consisting of two cross – sections – square (at the lower portion) and plus (in the upper portion) of the building. Various contours and streamlines and their interpretation are discussed in detail. effect on automotive. Therefore, it has shown a considerable accuracy in simulating
Research ArticleEnvironmental & Water Resources Engineering
Shubham Rana ()·Prateek Thakran ()·Bhagya Jayant ()
In many nations, watershed development is a critical component of rural development and natural resource management initiatives. A watershed is a kind of common pool resource that consists of a geohydrological unit that drains to a common location through a series of drains. All regions on the planet are part of one or more watersheds, and even small land fragments act as watersheds (for this purpose a case study on VILLAGE SIRASPUR, DELHI is also a part of MICROWATERSHEDS IN DELHI). Watershed management is problematic because watershed systems include a variety of competing uses, thus any gain or cost will be distributed unevenly across users. Theories based on common research suggest that managing complex watersheds would be challenging, and that success will be restricted to isolated, actively aided micro watershed programmes with a social organisation emphasis. The simplest way to encourage community action is at the micro watershed level, yet good hydrological management necessitates effort at the macro watershed level. It also helps in recharging groundwater which is depleting in Delhi at alarming rate.
