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Featured researches published by Sujit Kumar Dalui.


Archive | 2015

Along and Across Wind Effects on Irregular Plan Shaped Tall Building

Biswarup Bhattacharyya; Sujit Kumar Dalui

This paper presents detailed study of force and pressure coefficients of an unsymmetrical ‘E’ plan shaped tall building under wind excitation. The building is unsymmetrical about both direction (along and across wind direction) in plan. Experimental and numerical study is carried out by wind tunnel test in boundary layer wind tunnel and Computational Fluid Dynamics (CFD) technique using ANSYS CFX software respectively to study the above model under wind excitation. Two different types of models were used for force and pressure measurements in wind tunnel. Rigid model was used at a model scale of 1:300 for both the cases. Force measurement model was tested under three different wind speeds of 6, 8, 10 m/s whether pressure measurement model was tested under wind speed of 10 m/s in wind tunnel. Wind flow pattern around the building model is studied by CFD technique for both wind flow direction which predicts about the nature of pressure distribution on different surfaces. Some dynamic nature of wind flow is observed at the rear side in case of across wind effects. Maximum positive force and pressure coefficients noticed in case of along wind effects as the surface area is maximum and maximum wind energy dissipates on frontal surface. Same mean pressure occurred on similar faces in case of along wind effects. Pressure contours are symmetrical about vertical axis on frontal faces for both directions of flow and pressure fluctuation noticed at the rear side face due to dynamic effects of flow pattern in case of across wind effect. A comparative study is carried out between experimental and numerical study and results found from these two methods have good agreement to each other.


Wind and Structures | 2014

Wind load on irregular plan shaped tall building – a case study

Souvik Chakraborty; Sujit Kumar Dalui; Ashok K. Ahuja


Wind and Structures | 2014

Wind induced pressure on `Y` plan shape tall building

Sourav Mukherjee; Souvik Chakraborty; Sujit Kumar Dalui; Ashok K. Ahuja


Archive | 2006

UNPLEASANT PEDESTRIAN WIND CONDITIONS AROUND BUILDINGS

R Ahuja; Sujit Kumar Dalui; V K Gupta


International Journal of Advanced Structural Engineering | 2016

Wind effects on ‘Z’ plan-shaped tall building: a case study

Rajdip Paul; Sujit Kumar Dalui


International Journal of Advanced Structural Engineering | 2018

Effects of courtyard and opening on a rectangular plan shaped tall building under wind load

Prasenjit Sanyal; Sujit Kumar Dalui


Asian Journal of Civil Engineering | 2018

Comparison of aerodynamic coefficients of setback tall buildings due to wind load

Amlan Kumar Bairagi; Sujit Kumar Dalui


Wind and Structures | 2017

Effect of internal angles between limbs of cross plan shaped tall building under wind load

Debasish Kumar; Sujit Kumar Dalui


International Journal of Advanced Structural Engineering | 2016

WIND INTERFERENCE EFFECT ON AN OCTAGONAL PLAN SHAPED TALL BUILDING DUE TO SQUARE PLAN SHAPED TALL BUILDINGS

Rony Kar; Sujit Kumar Dalui


Archive | 2015

Wind Effect on '+' Plan Shaped Tall Buildings

Souvik Chakraborty; Sujit Kumar Dalui

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Ashok K. Ahuja

Indian Institute of Technology Roorkee

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Amlan Kumar Bairagi

Indian Institute of Engineering Science and Technology

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Prasenjit Sanyal

Indian Institute of Engineering Science and Technology

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Rajdip Paul

Indian Institute of Engineering Science and Technology

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